Build always successful monodevelop

I dont know why but now (it worked fine yesterday) when building my scripts is says Build successful every time even whern there are mistakes. I tried deleting the files in : C:\Users\user\AppData\Roaming\Monodevelop
and even reinstall unity.

Nothing worked.

I dont know if this is related but I also have autocommplete problem posted here : Resync the project - Questions & Answers - Unity Discussions

Anyone knows how to fix this?

UPDATE :

when draging the script to an object it says : Please fix compile errors before creating new script components

It’s like its not compiling the script at all.

Never seen this before, but I’d start by deleting my library files from with your project root (close unity, delete file, open unity, wait a bit for library files to regenerate).

Found the problem : for some reason some code I wrote caused the compiler to give always “Build successful”, I deleted that part and wrote it again and it worked.