when building execution of a command failed with code

[xmonader]

root@host1:~/publishingtools# bash testwebsitesandwikis.sh                                                               
Dependencies are satisfied                                                                                               
Building: tfweb                                                                                                          
Error target tfweb failed to compile:                                                                                    
/usr/bin/ld: _main.o: in function `->':                                                                                  
/root/publishingtools/src/tfwebserver/webserver.cr:309: undefined reference to `*TFWeb::WebServer::serve_wikifile<HTTP::S
erver::Context, String, String>:(String | Nil)'                                                                          
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:345: undefined reference to `*TFWeb::WebServer::handle_readme<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:356: undefined reference to `*TFWeb::WebServer::handle_sidebar<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:358: undefined reference to `*TFWeb::WebServer::handle_readme<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:360: undefined reference to `*TFWeb::WebServer::serve_wikifile<HTTP::Server::Context, String, String>:(String | Nil)' 
/usr/bin/ld: F-ile.o: in function `join':
/usr/share/crystal/src/file.cr:712: undefined reference to `*Path::new<(Path | String), String>:Path'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:345: undefined reference to `*TFWeb::WebServer::h[0/1969]adme<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:356: undefined reference to `*TFWeb::WebServer::handle_sidebar<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:358: undefined reference to `*TFWeb::WebServer::handle_readme<HTTP::Server::Context, String, Path>:Nil'
/usr/bin/ld: /root/publishingtools/src/tfwebserver/webserver.cr:360: undefined reference to `*TFWeb::WebServer::serve_wikifile<HTTP::Server::Context, String, String>:(String | Nil)' 
/usr/bin/ld: F-ile.o: in function `join':
/usr/share/crystal/src/file.cr:712: undefined reference to `*Path::new<(Path | String), String>:Path'
/usr/bin/ld: A-rray40R-adix585-c36476f3dafc8c33ee8a9ba5fab71450.o: in function `sort!':
/usr/share/crystal/src/array.cr:1790: undefined reference to `*Slice(T)::new<Pointer(Radix::Node(Array(Kemal::FilterHandler::FilterBlock))), Int32>:Slice(Radix::Node(Array(Kemal::FilterHandler::FilterBlock)))'
/usr/bin/ld: T-F-W-eb5858G-I-T-R-epo.o: in function `ensure_repo':
/root/publishingtools/src/gittools/gitrepo.cr:116: undefined reference to `*String::interpolation<String, Path, String, String, String, String, String>:String'
/usr/bin/ld: T-F-W-eb5858W-ebS-erver.o: in function `serve': 
/root/publishingtools/src/tfwebserver/webserver.cr:188: undefined reference to `~procProc(Nil)@src/tfwebserver/webserver.cr:142'
/usr/bin/ld: K-emal5858F-ilterH-andler5858F-ilterB-lock.o: in function `initialize':
/root/publishingtools/lib/kemal/src/kemal/filter_handler.cr:81: undefined reference to `~procProc(HTTP::Server::Context, String)@lib/kemal/src/kemal/filter_handler.cr:82'
/usr/bin/ld: S-lice40R-adix585-33ea5f0b09f08bbf6745418158103392.o: in function `sort!':
/usr/share/crystal/src/slice.cr:673: undefined reference to `*Slice(T)::intro_sort!<Pointer(Radix::Node(Array(Kemal::FilterHandler::FilterBlock))), Int32>:Nil'
/usr/bin/ld: /root/publishingtools/bin/tfweb: no symbol version section for versioned symbol `~procProc(Nil)@src/tfwebserver/webserver.cr:142'
collect2: error: ld returned 1 exit status
Error: execution of command failed with code: 1: `cc "${@}" -o '/root/publishingtools/bin/tfweb'  -rdynamic  -lz `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libssl || printf %s '-lssl -lcrypto'` `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libcrypto || printf %s '-lcrypto'` -lpcre -lm /usr/bin/../lib/crystal/lib/libgc.a -lpthread /usr/share/crystal/src/ext/libcrystal.a -levent -lrt -ldl -L/usr/bin/../lib/crystal/lib -L/usr/bin/../lib/crystal/lib`

[xmonader]

couldn't solve by cleaning lib, .cache/crystal