Eclipse使用遇到的问题解决方法收集

Resolving spurious project errors in Eclipse

Opening a workspace with several projects, I was presented with the following error for two of the projects:

The project cannot be built until the build path errors are resolved.

The resolution was to force a resave of the selected projects (and their .classpath files):

1. Open the project properties
2. Select Java Build Path > Libraries
3. Add a new, arbitrary library (to be deleted later) > OK
4. Wait for the workspace to refresh (or force a refresh of the project)
5. The error(s) will go away
6. Remove the dummy library

The only other references I could find were to make minor alterations of contents of the .classpath file.

from http://www.scottdstrader.com/blog/ether_archives/000921.html