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.