Failure to transfer dependency, was cached in the

问题:

I am working on maven 2 project on eclipse, and I have the m2e plugin, and I am getting the following error in Eclipse:

Failure to transfer com.thoughtworks.xstream:xstream:pom:1.3.1 from http://repo1.maven.org/maven2 was cached in the 
 local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. 
 Original error: Could not transfer artifact com.thoughtworks.xstream:xstream:pom:1.3.1 from/to central (http://
 repo1.maven.org/maven2): Failed to create a selector. to http://repo1.maven.org/maven2/com/thoughtworks/xstream/
 xstream/1.3.1/xstream-1.3.1.pom

I followed answers on similar problem by removing .lastUpdated file then clean and build with no luck, still getting same error, please advise.

回答1:

problem fixed after deleting the .lastUpdated file and the dependency then downloading it again.

回答2:

You can use -U parameter to force a check for the updated releases and snapshots on remote repositories, and resolve this issue.

Actually you can find this solution by using mvn -h to show Maven help.

回答3:

If you are using Eclipse:

• Go to Window->Preferences->Maven:
  check the download artifact source code, artifact javadoc, update maven project on startup.

• In the folder that contains pom.xml, run:
  mvn clean install -U

It worked for me :).