maven reset error, how to fix?

Question

Java

So, according to the lesson, I created an empty project, created the necessary folders.
Then I went to the project folder, opened the command line, and typed in the following:
mnv -clean package.
The assembly went, but a fatal error occurred. Namely:

C:\Users\MS\Desktop\eclipse-workspace\JavaNioSever>mvn clean package
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< JavaNioSever:JavaNioSever >----------------------
[INFO] Building SimpleJavaServer 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ JavaNioSever ---
[INFO] Deleting C:\Users\MS\Desktop\eclipse-workspace\JavaNioSever\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ JavaNioSev
er ---
[WARNING] Using platform encoding (Cp1251 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ JavaNioSever
---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1251, i.e. b
uild is platform dependent!
[INFO] Compiling 1 source file to C:\Users\MS\Desktop\eclipse-workspace\JavaNioS
ever\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ Ja
vaNioSever ---
[WARNING] Using platform encoding (Cp1251 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (default-testCompile) @ JavaN
ioSever ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 14.494 s
[INFO] Finished at: 2018-07-31T22:08:54+09:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.
7.0:testCompile (default-testCompile) on project JavaNioSever: Execution default
-testCompile of goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:testCo
mpile failed.: IllegalArgumentException -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit
ch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutio
nException

I'm new to this, so it's hard for me to understand what's what. But what should be done to fix this error?

Answer 1

Most likely it's the versions of maven and jdk
Try playing around with fonts and versions