java 一个项目报错

Question

[ERROR] Failed to execute goal on project unidbg: Could not resolve dependencies for project cn.banny:unidbg:jar:0.1.1-SNAPSHOT: Failed to collect dependencies at org.unicorn-engine:unicorn:jar:1.0.1: Failed to read artifact descriptor for org.unicorn-engine:unicorn:jar:1.0.1: Could not transfer artifact org.unicorn-engine:unicorn:pom:1.0.1 from/to nexus (http://p.gzmtx.cn:8081/nexus/content/groups/public/): Connect to p.gzmtx.cn:8081 [p.gzmtx.cn/113.105.203.36] failed: Connection timed out: connect -> [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/DependencyResolutionException

网上查了一下这个项目报错，主要原因是

https://www.e-learn.cn/topic/...

但是我根据这上面说的没明白具体怎么做，我这个没找到clean 这个东西

Answer 1

(http://p.gzmtx.cn:8081/nexus/content/groups/public/): Connect to p.gzmtx.cn:8081 [p.gzmtx.cn/113.105.203.36] failed: Connection timed out

p.gzmtx.cn这个仓库访问不到