java.lang.NoClassDefFoundError: spray/io/ServerSSLEngineProvider

[artsiom-tsaryonau]

Hi!

I downloaded the repository as zip and followed all the steps from Build and run section. However when I try to run it

lein trampoline run --config yopa-config-example.yml

I get this error

Exception in thread "main" java.lang.NoClassDefFoundError: spray/io/ServerSSLEngineProvider$, compiling:(C:\Users\User1\AppData\Local\Temp\form-init539425386409068239.clj:1:119)
        at clojure.lang.Compiler.load(Compiler.java:7239)
        at clojure.lang.Compiler.loadFile(Compiler.java:7165)
        at clojure.main$load_script.invoke(main.clj:275)
        at clojure.main$init_opt.invoke(main.clj:280)
        at clojure.main$initialize.invoke(main.clj:308)
        at clojure.main$null_opt.invoke(main.clj:343)
        at clojure.main$main.doInvoke(main.clj:421)
        at clojure.lang.RestFn.invoke(RestFn.java:421)
        at clojure.lang.Var.invoke(Var.java:383)
        at clojure.lang.AFn.applyToHelper(AFn.java:156)
        at clojure.lang.Var.applyTo(Var.java:700)
        at clojure.main.main(main.java:37)
Caused by: java.lang.NoClassDefFoundError: spray/io/ServerSSLEngineProvider$
        at org.elasticmq.rest.sqs.TheSQSRestServerBuilder.start(SQSRestServerBuilder.scala:148)
        at com.unbounce.yopa.sqs_server$make_server.invoke(sqs_server.clj:16)
        at com.unbounce.yopa.sqs_server$start.invoke(sqs_server.clj:19)
        at com.unbounce.yopa.core$start.invoke(core.clj:89)
        at com.unbounce.yopa.core$init_and_start.invoke(core.clj:108)
        at com.unbounce.yopa.core$_main.doInvoke(core.clj:121)
        at clojure.lang.RestFn.invoke(RestFn.java:421)
        at clojure.lang.Var.invoke(Var.java:383)
        at user$eval5.invoke(form-init539425386409068239.clj:1)
        at clojure.lang.Compiler.eval(Compiler.java:6782)
        at clojure.lang.Compiler.eval(Compiler.java:6772)
        at clojure.lang.Compiler.load(Compiler.java:7227)
        ... 11 more
Caused by: java.lang.ClassNotFoundException: spray.io.ServerSSLEngineProvider$
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 23 more

What is the problem?