Visual studio, intelliSense errors and the project 'put name' has been modified outside the environement.

Development Programming & Scripting C++
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If I have any weird engine compile errors like this I always do the following:
Delete everything, that is not absolutely necessary to compile the game:

  • Binaries
  • DerivedDataCache
  • Intermediate
  • Saved
  • In root folder YourGameName.sln

Then keep both editors, unreal and visual studio closed. Go to the file explorer, select your YourGameName.uproject file and klick ‘Generate Visual Studio Files’. That takes a small bit of time, depending on your hardware.

After that you can open the .sln and hit Build. Make sure

  • Build Configuration is ‘Development Editor’
  • Startup Project is Games->YourGameName.
  • In error List in VS choose ‘Build Only’. For Unreal Intellisense feels a bit wonky.

To really get C++ up and running I also needed to

  • install the unreal integration

  • some more C++ Packages (VS wont stop screaming after you have)

  • disable ‘Live Coding’ in Unreal

  • fix 2 compile errors from code that was shipped (really easy ones, vs opens the line if you double klick the error in the error list)

I also always compile the code with the engine closed and only open the engine editor with the ‘Local Windows Debugger’ in VS.

Hope that helps :slight_smile:

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