Cocould not copy all resources to Tomcat when eclipse releases an application

When using eclipse for development and publishing an application, the application cannot be released successfully.

Deployment failure on Tomcat 6. x. cocould not copy all resources to D :/... /webapps/eptinfo. if a file is locked, you can wait until the lock times out to redeploy, or stop the server and redeploy, or manually remove the deployment at D :/.... /webapps/eptinfo.

However, my tomcat service is not started. after searching online, I found that it was a problem with everyone. I introduced a package in the original project, and then I deleted the package, but because the project has been released, therefore, this package name exists in classpath. In this way, the package will be searched but does not exist at the time of release. Therefore, no copy is available,

Solution: In the Eclipse project, click "properties"> "Java build path" and select "properties"> "XX. Jar" does not exist. In this way, delete the jar information from libraries.

Application re-released. Successful!