'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

I keep my Workspace on Dropbox. I had this issue occur, and managed to solve it by searching within [workspace]/.metadata/ for the word 'conflicted' and deleting all these files Dropbox had created. Error was gone when I restarted Eclipse.