UE4.17 will not compile with new studio2017_15.3 update

Development Programming & Scripting
21

This change doesn’t fix it. You need to amend the Build Tool chain file at
Engine/Source/Programs/UnrealBuildTool/Windows/VCToolChain.cs

Add the line as marked below :

// Disable Microsoft extensions on VS2017+ for improved standards compliance.
			if (Compiler >= WindowsCompiler.VisualStudio2017)
			{
				Arguments.Add("/permissive-");
                Arguments.Add("/Zc:twoPhase-"); // <-- ADD THIS LINE
                Arguments.Add("/Zc:strictStrings-"); // Have to disable strict const char* semantics due to Windows headers not being compliant.
			}

Then rebuild your project.

22

where to add this code in the file ?

23

If anyone was wondering, you can make one for free. Just made one myself

24

It’s line 250 for me, searching for Arguments.Add("/permissive-"); should give the correct location.

25

thanks a lot it worked for me

26

What fixed my issue was

Verify your windows user account.

In windows 10 go to all settings → Users → your Account and check to see if your user account has been verified. It will show a little blue link “Verify” After i verified my account i no longer had any permission issues. or 8.1 kit errors.

Weird i know but it fixed it.