Maven 丢失的工件

Question

I have a maven project which until yesterday was being build normally. Now whenever i try to build using m2e it fails to build because it could not resolve dependencies, but these dependencies are not missing and they are found in my local repository. I know that this question has been asked before but none of the answers solved my problem. I have tried many things:

• deleting the cache.
• closing the project and reopening it.
• doing a clean install of the project.

Yet no result. So is there more systematic procedure to solve this problem?

Edit log:

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building itunit-workflow 1.0.2-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.activiti:activiti-bpmn-converter:jar:5.13 is missing, no dependency information available
[WARNING] The POM for org.springframework:spring-beans:jar:3.1.2.RELEASE is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.279s
[INFO] Finished at: Mon Dec 16 18:30:10 GMT+02:00 2013
[INFO] Final Memory: 5M/76M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project itunit-workflow: Could not resolve dependencies for project org.itunit.itunit:itunit-workflow:ejb:1.0.2-SNAPSHOT: The following artifacts could not be resolved: org.activiti:activiti-bpmn-converter:jar:5.13, org.springframework:spring-beans:jar:3.1.2.RELEASE: Cannot access central (http://repo.maven.apache.org/maven2) in offline mode and the artifact org.activiti:activiti-bpmn-converter:jar:5.13 has not been downloaded from it before. -> [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

Answer 1

This usually happens when changing from one maven configuration to another. In my case, I was switching from direct connection to maven central to using nexus as a mirror.

Deleting maven-metadata*.xml and _*.repositories inside local \\Users\\YourUser\\.m2 folder did the trick for me.

Hope this helps!

Answer 2

In IntelliJ: -go to File -settings -on search box top left type 'maven'. -click on maven option -see if work offline box is checked. if yes then uncheck it

In Eclipse: -click on the small dropdown arrow on the green Run icon. -click on run configurations and select you maven build config -see if 'offline' box is checked. if yes then uncheck it

If you did this and still getting same issue then I would go with @Faliorn solution

Answer 3

I faced with this problem when tried make install with Intellij IDEA Maven plugin. But when I made install with local Maven installation, problem was gone. If you have same problem try to install new Maven and run mvn install