Eclipse CDT “Symbol NULL could not be resolved”

Question

I just installed Eclipse CDT with MinGW. All the environment variables are set, includes, etc. Tried running a hello world and everyth

Answer 1

nothing of the suggestions above helped me. Every time opening a file the exclipse reports dozens of errors.

What helped in the end: Closing all files, then deleting the bugs manually (right click on the error list in the Problems window), then do a rebuild index.