Unable to start LSP server: ... attempt to index a nil value (local 'result') #379

mhwombat · 2023-03-15T18:52:26Z

mhwombat
Mar 15, 2023

I am running the latest version of both textadept and textadept-lsp fresh from the repos as of today. When I go to any buffer with a supported language (e.g. Lua or Haskell), I get the following error message:

Unable to start LSP server: /home/amy/.config/textadept/modules/lsp/init.lua:431: attempt to index a nil value (local 'result')

Any suggestions?

Answered by orbitalquark

Mar 15, 2023

Okay, sounds like my gopls issue. Try commenting this line out: https://github.com/orbitalquark/textadept-lsp/blob/9346e0acc93b5bf4a33e92276630a94ee7a8ce0d/init.lua#L386

View full answer

orbitalquark · 2023-03-15T19:12:06Z

orbitalquark
Mar 15, 2023
Maintainer

The language server probably did not like the initialize request and either exited or returned null. Try enabling `lsp.log_rpc` before starting a language server and then inspect Tools > Language Server > Show Log after you see the error. I know that gopls (Go) doesn't like the "selectionRange = {}" in the initialize request, so I have to comment it out locally until I find a better way to handle it.

0 replies

mhwombat · 2023-03-15T19:39:00Z

mhwombat
Mar 15, 2023
Author

Sorry, I do have lsp.log_rpc = true and meant to include the full log with my post:

Starting language server: haskell-language-server --lsp
RPC send: {"params":{"processId":null,"clientInfo":{"version":"Textadept 12.0 alpha 2","name":"textadept"},"rootUri":"file:///home/amy/codeberg/pandoc-include-plus","capabilities":{"textDocument":{"hover":{"contentFormat":["plaintext"]},"completion":{"completionItem":{"preselectSupport":true,"documentationFormat":["plaintext"]},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"signatureHelp":{"signatureInformation":{"activeParameterSupport":true,"parameterInformation":{"labelOffsetSupport":true},"documentationFormat":["plaintext"]}},"selectionRange":[],"synchronization":{"didSave":true},"documentSymbol":{"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}}}}},"id":1,"jsonrpc":"2.0","method":"initialize"}
Unable to start LSP server: /home/amy/.config/textadept/modules/lsp/init.lua:470: attempt to index a nil value (local 'line')
stack traceback:
	/home/amy/.config/textadept/modules/lsp/init.lua:718: in metamethod 'index'
	/home/amy/.config/textadept/modules/lsp/init.lua:470: in method 'read'
	/home/amy/.config/textadept/modules/lsp/init.lua:496: in method 'request'
	/home/amy/.config/textadept/modules/lsp/init.lua:276: in function </home/amy/.config/textadept/modules/lsp/init.lua:266>
	[C]: in function 'xpcall'
	/home/amy/.config/textadept/modules/lsp/init.lua:716: in function 'lsp.start'
	/home/amy/.config/textadept/modules/lsp/init.lua:1090: in function </home/amy/.config/textadept/modules/lsp/init.lua:1090>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
	...1bs93iv-textadept-11.4.14/share/textadept/core/lexer.lua:72: in method 'set_lexer'
	...s93iv-textadept-11.4.14/share/textadept/core/file_io.lua:141: in function 'keys.ctrl+o'
	...pt-11.4.14/share/textadept/modules/textadept/session.lua:65: in function 'textadept.session.load'
	/home/amy/.config/textadept/init.lua:489: in function </home/amy/.config/textadept/init.lua:475>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
Starting language server: haskell-language-server --lsp
RPC send: {"params":{"processId":null,"clientInfo":{"version":"Textadept 12.0 alpha 2","name":"textadept"},"rootUri":"file:///home/amy/codeberg/pandoc-include-plus","capabilities":{"textDocument":{"hover":{"contentFormat":["plaintext"]},"completion":{"completionItem":{"preselectSupport":true,"documentationFormat":["plaintext"]},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"signatureHelp":{"signatureInformation":{"activeParameterSupport":true,"parameterInformation":{"labelOffsetSupport":true},"documentationFormat":["plaintext"]}},"selectionRange":[],"synchronization":{"didSave":true},"documentSymbol":{"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}}}}},"id":1,"jsonrpc":"2.0","method":"initialize"}
Unable to start LSP server: /home/amy/.config/textadept/modules/lsp/init.lua:470: attempt to index a nil value (local 'line')
stack traceback:
	/home/amy/.config/textadept/modules/lsp/init.lua:718: in metamethod 'index'
	/home/amy/.config/textadept/modules/lsp/init.lua:470: in method 'read'
	/home/amy/.config/textadept/modules/lsp/init.lua:496: in method 'request'
	/home/amy/.config/textadept/modules/lsp/init.lua:276: in function </home/amy/.config/textadept/modules/lsp/init.lua:266>
	[C]: in function 'xpcall'
	/home/amy/.config/textadept/modules/lsp/init.lua:716: in function 'lsp.start'
	/home/amy/.config/textadept/modules/lsp/init.lua:1090: in function </home/amy/.config/textadept/modules/lsp/init.lua:1090>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
	...1bs93iv-textadept-11.4.14/share/textadept/core/lexer.lua:72: in method 'set_lexer'
	...s93iv-textadept-11.4.14/share/textadept/core/file_io.lua:141: in function 'keys.ctrl+o'
	...pt-11.4.14/share/textadept/modules/textadept/session.lua:65: in function 'textadept.session.load'
	/home/amy/.config/textadept/init.lua:489: in function </home/amy/.config/textadept/init.lua:475>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
Starting language server: haskell-language-server --lsp
RPC send: {"params":{"processId":null,"clientInfo":{"version":"Textadept 12.0 alpha 2","name":"textadept"},"rootUri":"file:///home/amy/codeberg/pandoc-include-plus","capabilities":{"textDocument":{"hover":{"contentFormat":["plaintext"]},"completion":{"completionItem":{"preselectSupport":true,"documentationFormat":["plaintext"]},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"signatureHelp":{"signatureInformation":{"activeParameterSupport":true,"parameterInformation":{"labelOffsetSupport":true},"documentationFormat":["plaintext"]}},"selectionRange":[],"synchronization":{"didSave":true},"documentSymbol":{"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}}}}},"id":1,"jsonrpc":"2.0","method":"initialize"}
Unable to start LSP server: /home/amy/.config/textadept/modules/lsp/init.lua:470: attempt to index a nil value (local 'line')
stack traceback:
	/home/amy/.config/textadept/modules/lsp/init.lua:718: in metamethod 'index'
	/home/amy/.config/textadept/modules/lsp/init.lua:470: in method 'read'
	/home/amy/.config/textadept/modules/lsp/init.lua:496: in method 'request'
	/home/amy/.config/textadept/modules/lsp/init.lua:276: in function </home/amy/.config/textadept/modules/lsp/init.lua:266>
	[C]: in function 'xpcall'
	/home/amy/.config/textadept/modules/lsp/init.lua:716: in function 'lsp.start'
	/home/amy/.config/textadept/modules/lsp/init.lua:1090: in function </home/amy/.config/textadept/modules/lsp/init.lua:1090>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
	...1bs93iv-textadept-11.4.14/share/textadept/core/lexer.lua:72: in method 'set_lexer'
	...s93iv-textadept-11.4.14/share/textadept/core/file_io.lua:141: in function 'keys.ctrl+o'
	...pt-11.4.14/share/textadept/modules/textadept/session.lua:65: in function 'textadept.session.load'
	/home/amy/.config/textadept/init.lua:489: in function </home/amy/.config/textadept/init.lua:475>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
Starting language server: lua-lsp
RPC send: {"params":{"processId":null,"clientInfo":{"version":"Textadept 12.0 alpha 2","name":"textadept"},"capabilities":{"textDocument":{"hover":{"contentFormat":["plaintext"]},"completion":{"completionItem":{"preselectSupport":true,"documentationFormat":["plaintext"]},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"signatureHelp":{"signatureInformation":{"activeParameterSupport":true,"parameterInformation":{"labelOffsetSupport":true},"documentationFormat":["plaintext"]}},"selectionRange":[],"synchronization":{"didSave":true},"documentSymbol":{"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}}}}},"id":1,"jsonrpc":"2.0","method":"initialize"}
RPC recv: {"error":{"code":-32603,"message":"...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/analyze.lua:740: attempt to concatenate a nil value (local 'root')\nstack traceback:\n\t...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/analyze.lua:740: in function 'lua-lsp.analyze.load_completerc'\n\t...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/methods.lua:18: in function 'lua-lsp.methods.initialize'\n\t...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:57: in function <...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:56>\n\t[C]: in function 'xpcall'\n\t...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:56: in function 'lua-lsp.loop'\n\t....1.0-2/lua-lsp-0.1.0-2-rocks/lua-lsp/0.1.0-2/bin/lua-lsp:3: in main chunk\n\t[C]: in ?"},"id":1,"jsonrpc":"2.0"}
Server returned an error: ...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/analyze.lua:740: attempt to concatenate a nil value (local 'root')
stack traceback:
	...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/analyze.lua:740: in function 'lua-lsp.analyze.load_completerc'
	...lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/methods.lua:18: in function 'lua-lsp.methods.initialize'
	...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:57: in function <...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:56>
	[C]: in function 'xpcall'
	...fv-lua0.1-lua-lsp-0.1.0-2/share/lua/5.3/lua-lsp/loop.lua:56: in function 'lua-lsp.loop'
	....1.0-2/lua-lsp-0.1.0-2-rocks/lua-lsp/0.1.0-2/bin/lua-lsp:3: in main chunk
	[C]: in ?
Unable to start LSP server: /home/amy/.config/textadept/modules/lsp/init.lua:431: attempt to index a nil value (local 'result')
stack traceback:
	/home/amy/.config/textadept/modules/lsp/init.lua:718: in metamethod 'index'
	/home/amy/.config/textadept/modules/lsp/init.lua:431: in function </home/amy/.config/textadept/modules/lsp/init.lua:266>
	[C]: in function 'xpcall'
	/home/amy/.config/textadept/modules/lsp/init.lua:716: in function 'lsp.start'
	/home/amy/.config/textadept/modules/lsp/init.lua:1090: in function </home/amy/.config/textadept/modules/lsp/init.lua:1090>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'
	...1bs93iv-textadept-11.4.14/share/textadept/core/lexer.lua:72: in method 'set_lexer'
	...s93iv-textadept-11.4.14/share/textadept/core/file_io.lua:141: in function 'keys.ctrl+o'
	...pt-11.4.14/share/textadept/modules/textadept/session.lua:65: in function 'textadept.session.load'
	/home/amy/.config/textadept/init.lua:489: in function </home/amy/.config/textadept/init.lua:475>
	[C]: in function 'pcall'
	...bs93iv-textadept-11.4.14/share/textadept/core/events.lua:466: in function 'events.emit'

0 replies

mhwombat · 2023-03-15T19:46:35Z

mhwombat
Mar 15, 2023
Author

Looks like the problems with lua-lsp and haskell-language-server are different.
In case it helps, here's the relevant section of my config:

-- Set up LSP
local lsp = require('lsp')

-- For debugging, inspect the LSP messages sent back and forth
lsp.log_rpc = true

lsp.server_commands.lua = 'lua-lsp'
lsp.server_commands.haskell = 'haskell-language-server --lsp'

When I run either lua-lsp or haskell-language-server --lsp at the command line, it seems to work fine.

0 replies

orbitalquark · 2023-03-15T19:47:52Z

orbitalquark
Mar 15, 2023
Maintainer

It looks like the "haskell-language-server" is just not starting up. Textadept spawns a the process, sends it the LSP initialize request over stdin, and then reads a response. However, since the language server is not responding, `line` is nil (usually this means EOF). Can you enable logging for the haskell server to see if it doesn't like something about Textadept's initialize request? lua-lsp starts up okay, but it seems to be throwing an internal error, probably because Textadept is not giving it a root URI (there is no project associated with the open Lua file).

0 replies

mhwombat · 2023-03-15T19:53:54Z

mhwombat
Mar 15, 2023
Author

Here's with logging (lsp.server_commands.haskell = 'haskell-language-server --lsp --logfile=amy.log').

2023-03-15T19:51:45.841573Z | Info | haskell-language-server version: 1.9.1.0 (GHC: 9.2.6) (PATH: /nix/store/d1admd108qbsksqxlwsxn4qmp9mfz91f-haskell-language-server-1.9.1.0/bin/.haskell-language-server-9.2.6-unwrapped)
2023-03-15T19:51:45.841795Z | Info | Directory: /home/amy/codeberg/pandoc-include-plus
2023-03-15T19:51:45.841825Z | Info | Starting (haskell-language-server) LSP server...
  GhcideArguments {argsCommand = LSP, argsCwd = Nothing, argsShakeProfiling = Nothing, argsTesting = False, argsExamplePlugin = False, argsDebugOn = False, argsLogFile = Just "amy.log", argsThreads = 0, argsProjectGhcVersion = False}
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:45.841961Z | Info | Logging heap statistics every 60.00s
2023-03-15T19:51:45.876699Z | Info | Starting LSP server...
  If you are seeing this in a terminal, you probably should have run WITHOUT the --lsp option!
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:45.877013Z | Info | Starting server
2023-03-15T19:51:45.877832Z | Error | Got error while decoding initialize:
Error in $.params.capabilities.textDocument.selectionRange: When parsing the constructor SelectionRangeClientCapabilities of type Language.LSP.Types.SelectionRange.SelectionRangeClientCapabilities expected Object but got Array.
2023-03-15T19:51:47.038580Z | Info | haskell-language-server version: 1.9.1.0 (GHC: 9.2.6) (PATH: /nix/store/d1admd108qbsksqxlwsxn4qmp9mfz91f-haskell-language-server-1.9.1.0/bin/.haskell-language-server-9.2.6-unwrapped)
2023-03-15T19:51:47.038808Z | Info | Directory: /home/amy/codeberg/pandoc-include-plus
2023-03-15T19:51:47.038842Z | Info | Starting (haskell-language-server) LSP server...
  GhcideArguments {argsCommand = LSP, argsCwd = Nothing, argsShakeProfiling = Nothing, argsTesting = False, argsExamplePlugin = False, argsDebugOn = False, argsLogFile = Just "amy.log", argsThreads = 0, argsProjectGhcVersion = False}
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:47.038994Z | Info | Logging heap statistics every 60.00s
2023-03-15T19:51:47.073738Z | Info | Starting LSP server...
  If you are seeing this in a terminal, you probably should have run WITHOUT the --lsp option!
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:47.074046Z | Info | Starting server
2023-03-15T19:51:47.074862Z | Error | Got error while decoding initialize:
Error in $.params.capabilities.textDocument.selectionRange: When parsing the constructor SelectionRangeClientCapabilities of type Language.LSP.Types.SelectionRange.SelectionRangeClientCapabilities expected Object but got Array.
2023-03-15T19:51:48.238460Z | Info | haskell-language-server version: 1.9.1.0 (GHC: 9.2.6) (PATH: /nix/store/d1admd108qbsksqxlwsxn4qmp9mfz91f-haskell-language-server-1.9.1.0/bin/.haskell-language-server-9.2.6-unwrapped)
2023-03-15T19:51:48.238690Z | Info | Directory: /home/amy/codeberg/pandoc-include-plus
2023-03-15T19:51:48.238722Z | Info | Starting (haskell-language-server) LSP server...
  GhcideArguments {argsCommand = LSP, argsCwd = Nothing, argsShakeProfiling = Nothing, argsTesting = False, argsExamplePlugin = False, argsDebugOn = False, argsLogFile = Just "amy.log", argsThreads = 0, argsProjectGhcVersion = False}
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:48.238869Z | Info | Logging heap statistics every 60.00s
2023-03-15T19:51:48.274070Z | Info | Starting LSP server...
  If you are seeing this in a terminal, you probably should have run WITHOUT the --lsp option!
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:51:48.274409Z | Info | Starting server
2023-03-15T19:51:48.275222Z | Error | Got error while decoding initialize:
Error in $.params.capabilities.textDocument.selectionRange: When parsing the constructor SelectionRangeClientCapabilities of type Language.LSP.Types.SelectionRange.SelectionRangeClientCapabilities expected Object but got Array.

0 replies

orbitalquark · 2023-03-15T19:56:06Z

orbitalquark
Mar 15, 2023
Maintainer

Okay, sounds like my gopls issue. Try commenting this line out: https://github.com/orbitalquark/textadept-lsp/blob/9346e0acc93b5bf4a33e92276630a94ee7a8ce0d/init.lua#L386

0 replies

mhwombat · 2023-03-15T20:03:03Z

mhwombat
Mar 15, 2023
Author

I commented out that line, and now I'm getting this:

2023-03-15T19:59:43.118102Z | Info | haskell-language-server version: 1.9.1.0 (GHC: 9.2.6) (PATH: /nix/store/d1admd108qbsksqxlwsxn4qmp9mfz91f-haskell-language-server-1.9.1.0/bin/.haskell-language-server-9.2.6-unwrapped)
2023-03-15T19:59:43.118335Z | Info | Directory: /home/amy/codeberg/pandoc-include-plus
2023-03-15T19:59:43.118369Z | Info | Starting (haskell-language-server) LSP server...
  GhcideArguments {argsCommand = LSP, argsCwd = Nothing, argsShakeProfiling = Nothing, argsTesting = False, argsExamplePlugin = False, argsDebugOn = False, argsLogFile = Just "amy.log", argsThreads = 0, argsProjectGhcVersion = False}
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:59:43.118507Z | Info | Logging heap statistics every 60.00s
2023-03-15T19:59:43.153593Z | Info | Starting LSP server...
  If you are seeing this in a terminal, you probably should have run WITHOUT the --lsp option!
  PluginIds: [ pragmas
             , LSPRecorderCallback
             , rename
             , ghcide-completions
             , class
             , refineImports
             , splice
             , cabal
             , changeTypeSignature
             , qualifyImportedNames
             , alternateNumberFormat
             , hlint
             , cabalfmt
             , explicit-fields
             , ghcide-code-actions-fill-holes
             , floskell
             , ghcide-extend-import-action
             , codeRange
             , importLens
             , retrie
             , ghcide-type-lenses
             , ghcide-code-actions-imports-exports
             , ghcide-hover-and-symbols
             , eval
             , gadt
             , fourmolu
             , callHierarchy
             , stylish-haskell
             , ghcide-code-actions-type-signatures
             , ghcide-code-actions-bindings
             , moduleName
             , ormolu
             , ghcide-core
             , explicit-fixity ]
2023-03-15T19:59:43.153895Z | Info | Starting server
2023-03-15T19:59:43.154990Z | Info | Started LSP server in 0.00s
2023-03-15T19:59:43.192548Z | Info | Registering IDE configuration: IdeConfiguration {workspaceFolders = fromList [NormalizedUri (-2127520687412872702) "file:///home/amy/codeberg/pandoc-include-plus"], clientSettings = hashed Nothing}
2023-03-15T19:59:43.237770Z | Info | Cradle path: app/Main.hs
2023-03-15T19:59:43.237931Z | Warning | No [cradle](https://github.com/mpickering/hie-bios#hie-bios) found for app/Main.hs.
Proceeding with [implicit cradle](https://hackage.haskell.org/package/implicit-hie).
You should ignore this message, unless you see a 'Multi Cradle: No prefixes matched' error.
2023-03-15T19:59:43.311239Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.311552Z | Info | Making new HscEnv. In-place unit ids: [main]
2023-03-15T19:59:43.322653Z | Info | Cradle path: src/Text/Pandoc/Filters/Include.hs
2023-03-15T19:59:43.322806Z | Warning | No [cradle](https://github.com/mpickering/hie-bios#hie-bios) found for src/Text/Pandoc/Filters/Include.hs.
Proceeding with [implicit cradle](https://hackage.haskell.org/package/implicit-hie).
You should ignore this message, unless you see a 'Multi Cradle: No prefixes matched' error.
2023-03-15T19:59:43.392954Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.393247Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.393303Z | Info | Making new HscEnv. In-place unit ids: [main, main]
2023-03-15T19:59:43.405996Z | Info | Cradle path: src/Text/Pandoc/App/FormatHeuristics.hs
2023-03-15T19:59:43.406148Z | Warning | No [cradle](https://github.com/mpickering/hie-bios#hie-bios) found for src/Text/Pandoc/App/FormatHeuristics.hs.
Proceeding with [implicit cradle](https://hackage.haskell.org/package/implicit-hie).
You should ignore this message, unless you see a 'Multi Cradle: No prefixes matched' error.
2023-03-15T19:59:43.474475Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.474696Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.474774Z | Info | Interface files cache directory: /home/amy/.cache/ghcide/main-1a596a151463f2c53ee4feb14ecd276a1ccebfda
2023-03-15T19:59:43.474828Z | Info | Making new HscEnv. In-place unit ids: [main, main, main]
2023-03-15T19:59:43.556785Z | Error | LSP: incoming message parse error:
Error in $: both error and result cannot be Nothing
when processing
{"jsonrpc":"2.0","id":0}

2023-03-15T20:00:43.178308Z | Info | Live bytes: 0.00MB Heap size: 0.00MB

1 reply

orbitalquark Mar 15, 2023
Maintainer

Error in $: both error and result cannot be Nothing
when processing
{"jsonrpc":"2.0","id":0}

It seems like Textadept sent that empty message. I'd be curious what the context was. If you ever find it in your RPC logs, please post a copy.

mhwombat · 2023-03-15T20:55:51Z

mhwombat
Mar 15, 2023
Author

Ah, despite that error message it is working now!

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Unable to start LSP server: ... attempt to index a nil value (local 'result') #379

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Unable to start LSP server: ... attempt to index a nil value (local 'result') #379

mhwombat Mar 15, 2023

Replies: 8 comments · 1 reply

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orbitalquark
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orbitalquark
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mhwombat
Mar 15, 2023
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orbitalquark
Mar 15, 2023
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mhwombat
Mar 15, 2023
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orbitalquark Mar 15, 2023
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mhwombat
Mar 15, 2023
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