Can't Open Project

One week of searching and nothing worked.

So, I have a problem when I try to open my project. When I open it it says “The following modules are missing… UE4Editor-PROJECTNAME.dll Would you like to rebuild them now?”
I click yes and then it says “Error : PROJECTNAME could not be compiled. Try rebuilding it from source manually”

That appened when I added some C++ code to my project, a simple empty actor.

Can SOMEONE please help, one week of searching…

Cordially.
Voyder Rozann

Well… I already added Visual Studio to my project…

I believe you need to install Visual Studio. Download Visual Studio Tools - Install Free for Windows, Mac, Linux

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks