After updating to Unreal Engine 4.7 I can no longer generate project files or compile any C++ projects. Below is the error I get when I attempt to generate project files:
Running C:/Program Files/Unreal Engine/4.7/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project="C:/Users/Xennma/Documents/Unreal Projects/ShooterGame3/ShooterGame3.uproject" -game -rocket -progress
Discovering modules, targets and source code for game...
UnrealBuildTool Exception: System.IO.IOException: The file exists.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Path.InternalGetTempFileName(Boolean checkHost)
at UnrealBuildTool.Utils.SetEnvironmentVariablesFromBatchFile(String BatchFileName)
at UnrealBuildTool.VCEnvironment..ctor(CPPTargetPlatform InPlatform)
at UnrealBuildTool.VCToolChain.GetVCIncludePaths(CPPTargetPlatform Platform)
at UnrealBuildTool.VCProjectFile.WriteProjectFile(List`1 InPlatforms, List`1 InConfigurations)
at UnrealBuildTool.ProjectFileGenerator.WriteProjectFiles()
at UnrealBuildTool.ProjectFileGenerator.GenerateProjectFiles(String[] Arguments, Boolean& bSuccess)
at UnrealBuildTool.UnrealBuildTool.GenerateProjectFiles(ProjectFileGenerator Generator, String[] Arguments)
at UnrealBuildTool.UnrealBuildTool.Main(String[] Arguments)
I have Visual Studio 2013 Ultimate installed running on Windows 7 64 bit.
I get the same thing even after downloading the 4.7.1 hotfix as well.