[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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 read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Error compiling Spigot. Please check the wiki for FAQs.
If this does not resolve your issue then please pastebin the entire BuildTools.log.txt file when seeking support.
java.lang.RuntimeException: Error running command, return status !=0: [sh, C:\Maven\apache-maven-3.6.3/bin/mvn, clean, install]
    at org.spigotmc.builder.Builder.runProcess0(Builder.java:818)
    at org.spigotmc.builder.Builder.runProcess(Builder.java:755)
    at org.spigotmc.builder.Builder.main(Builder.java:628)
    at org.spigotmc.builder.Bootstrap.main(Bootstrap.java:34)