'Building workspace' has encountered an error

Question

Eclipse Luna 4.4.0

Error occurred during the Build

Error instantiating builder \'ord.eclipse.m2e.core.maven         


        

Answer 1

In my case none of the above solutions worked. I used eclipse with two different workspaces, one works, seconds had this error. My solution was it to copy from the working workspace the following files over the corrupted one:

[workspace]/.metadata/.plugins/org.eclipse.m2e.core
[workspace]/.metadata/.plugins/org.eclipse.m2e.core.ui
[workspace]/.metadata/.plugins/org.eclipse.m2e.jdt
[workspace]/.metadata/.plugins/org.eclipse.m2e.launching
[workspace]/.metadata/.plugins/org.eclipse.m2e.logback.configuration

I'm using eclipse mars 64-bit version. So maybe before your whole workspace gets broken this might be a solution from a clean installation to copy.