How to solve maven 2.6 resource plugin dependency?

问题

ERROR:

Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6
Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6

Solutions Tried:

Updated project: not able to download from REPO of maven.

Tried putting perticular jar in that folder of .m2 repo.

Can provide references if you want.

回答1:

Seems your settings.xml file is missing your .m2 (local maven repo) folder.

When using eclipse navigate to Window -> Preferences -> Maven -> User Settings -> Browse to your settings.xml and click apply.

Then do maven Update Project.

回答2:

Right Click on Project go to -> Maven -> Update project ->select Force update project check box and click on Finish.

回答3:

On windows:

Remove folder from C:\Users\USER.m2
Close and open the project or force a change on file: pom.xml for saving :)

回答4:

If a download fails for some reason Maven will not try to download it within a certain time frame (it leaves a file with a timestamp).

To fix this you can either

Clear (parts of) your .m2 repo
Run maven with -U to force an update

回答5:

Step 1 : Check the proxy configured in eclipse is correct or not ? (Window->Preferences->General->Network Connections).

Step 2 : Right Click on Project-> Go to Maven -> Update the project

Step 3: Run as Maven Install.

==== By Following these steps, i am able to solve this error.

回答6:

I have faced the same issue. Try declaring missing plugin in the conf/settings.xml.

<build>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>2.6</version>
        </plugin>           
      </plugins>
    </pluginManagement>   
</build>

回答7:

I had exactly the same error. My network is an internal one of a company. The proxy has been disabled from the IT team so for that we do not have to enable any proxy settings. I have commented the proxy setting in settings.xml file from the below mentioned locations C:\Users\vijay.singh.m2\settings.xml This fixed the same issue for me

回答8:

I had exactly the same error. My network is an internal one of a company. I downloaded neon-eclipse for java developpers. These steps worked for me:

1- I downloaded a VPN client on my PC to be totally blinded from the network. Shellfire I used. Use free account and connect to Shellserver.

2- Inside the windows firewall, I added incoming rule for Eclipse. Navigate to where eclipse exe is found.

3- Perform Maven Update project.

Then the project was able to fetch from the maven repository.

hope it helps.

回答9:

Tried everything. I deleted m2e and installed m2e version 2.7.0. Then deleted the .m2 directory and force updated maven. It worked!

回答10:

This fixed the same issue for me: My eclipse is installed in /usr/local/bin/eclipse

1) Changed permission for eclipse from root to owner: sudo chown -R $USER eclipse

2) Right click on project/Maven right click on Update Maven select Force update maven project

来源：https://stackoverflow.com/questions/31316339/how-to-solve-maven-2-6-resource-plugin-dependency

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