Hello. If the issue still persists, you should do the following:
-Open the EpicGames application and select Unreal Engine from there.
-Click on the Library and next to the launch button of the installed version, press the arrow button and select Verify.
-After verification is complete, delete the Binaries, Intermediate, and Saved folders from your project folder.
-Right-click on your {ProjectName}.uproject file and select Generate Visual Studio Projects option.
-Wait until the installation is complete.
-Open the {ProjectName}.sln file in the Project folder with Visual Studio.
-Click on Build -> Rebuild Solution from the top menu.
-Once the build is completed, try opening your project again and build the application.
I solved my issue this way. Hopefully, it will work for you too.