jeecg-p3，执行mvn命令报错，求帮助！
PS D:\jiemi\jeecg\jeecg-p3\jeecg-p3-web> mvn installScanning for projects...
Some problems were encountered while building the effective model for org.p3framework:jeecg-p3-web:war:1.0.1
'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: commons-logging:commons-logging
:jar -> version 1.1.1 vs ${commons-logging.version} @ org.p3framework:jeecg-p3-pom:1.0-SNAPSHOT, C:\Users\plant\.m2\repo
sitory\org\p3framework\jeecg-p3-pom\1.0-SNAPSHOT\jeecg-p3-pom-1.0-SNAPSHOT.pom, line 465, column 15
'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: commons-collections:commons-col
lections:jar -> version 3.2 vs ${commons-collections.version} @ org.p3framework:jeecg-p3-pom:1.0-SNAPSHOT, C:\Users\plan
t\.m2\repository\org\p3framework\jeecg-p3-pom\1.0-SNAPSHOT\jeecg-p3-pom-1.0-SNAPSHOT.pom, line 475, column 15
It is highly recommended to fix these problems because they threaten the stability of your build.
For this reason, future Maven versions might no longer support building such malformed projects.
------------------------------------------------------------------------
Building jeecg-p3-web 1.0.1
------------------------------------------------------------------------
The POM for org.p3framework:jeecg-p3-biz-cms:jar:1.0.0 is missing, no dependency information available
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 0.974 s
Finished at: 2017-06-06T16:49:06+08:00
Final Memory: 8M/154M
------------------------------------------------------------------------
Failed to execute goal on project jeecg-p3-web: Could not resolve dependencies for project org.p3framework:jeecg
-p3-web:war:1.0.1: Failure to find org.p3framework:jeecg-p3-biz-cms:jar:1.0.0 in http://maven.jeecg.org/nexus/content/re
positories/jeecg was cached in the local repository, resolution will not be reattempted until the update interval of jee
cg has elapsed or updates are forced ->
To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.
For more information about the errors and possible solutions, please read the following articles:
http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
PS D:\jiemi\jeecg\jeecg-p3\jeecg-p3-web>
求帮助，什么原因导致的不能执行maven命令？
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