0.3.1 Apr14 Doesn't compile

Interesting. I'll see what I can find out.

Why did you modify the OculusRiftRender.cpp? That file (IOculusRiftPlugin.h) is included in OculusRiftHMD.h.

Hi

Here are the steps to reproduce

1. Take a virgin Apr14QA UE4
2. Splat the content of ovr_ue4_0.3.1_src_QA_04_2014.zip over it
3. run GenerateProjectFiles.bat
4. build project UE4 using configuration Development Editor, Win64
5. if you build solution, every porject fails with this error

I've observed the error on two seperate Win8.1 x64 PCs. It thinks IOculusRiftPlugin.h is a precompiledheader file for some reason. I only added the #include to see if I could sidestep the error.

Hmm... I can't reproduce it, it compiles fine for me....
Which version of Visual Studio do you use?

Please, verify that all files in Engine/Plugins/OculusRift were updated correctly, namely:
\UE4-QA\Engine\Plugins\OculusRift\Source\OculusRift\Private\OculusRiftHMD.cpp
\UE4-QA\Engine\Plugins\OculusRift\Source\OculusRift\Private\OculusRiftHMD.h
\UE4-QA\Engine\Plugins\OculusRift\Source\OculusRift\Private\OculusRiftRender.cpp
\UE4-QA\Engine\Plugins\OculusRift\Source\OculusRift\Public\IOculusRiftPlugin.h
\UE4-QA\Engine\Plugins\OculusRift\Source\OculusRift\OculusRift.Build.cs

Remove the directory \UE4-QA\Engine\Plugins\OculusRift\Intermediate and rebuild (no need to rebuild whole solution, just use 'Build' on UE4 or QAGame targets).

Hi artyom17

I used VS2013 Pro and VS2013 Express, config Development Editor.

Hmm, odd. If I remove intermediate I get a compilation warning, and link errors

1>------ Build started: Project: UE4, Configuration: Development_Editor x64 ------
1>EXEC : warning : File 'E:\TS2Prototype\Engine\Plugins\OculusRift\Source\OculusRift\Private\OculusRiftRender.cpp' doesn't use same 'shared' precompiled header as other files in this module: 'Core.h' vs 'Engine.h'.  This can greatly impact compile times.  Make sure that your module's private PCH header includes the 'largest' shared PCH header that your module uses
1>  Module.OculusRift.cpp
1>  rc.exe PCLaunch.rc
1>  link.exe UE4Editor-OculusRift.dll
1>     Creating library E:\TS2Prototype\Engine\Plugins\OculusRift\Intermediate/Build/Win64\Dynamic\UE4Editor\Development\UE4Editor-OculusRift.lib and object E:\TS2Prototype\Engine\Plugins\OculusRift\Intermediate/Build/Win64\Dynamic\UE4Editor\Development\UE4Editor-OculusRift.exp
1>Module.OculusRift.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl IHeadMountedDisplay::GetChromaAbCorrectionValues(class FVector4 &)const " (?GetChromaAbCorrectionValues@IHeadMountedDisplay@@UEBA_NAEAVFVector4@@@Z)
1>Module.OculusRift.cpp.obj : error LNK2001: unresolved external symbol "public: virtual float __cdecl IHeadMountedDisplay::GetDistortionScalingFactor(void)const " (?GetDistortionScalingFactor@IHeadMountedDisplay@@UEBAMXZ)
1>Module.OculusRift.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl IHeadMountedDisplay::GetDistortionWarpValues(class FVector4 &)const " (?GetDistortionWarpValues@IHeadMountedDisplay@@UEBAXAEAVFVector4@@@Z)
1>Module.OculusRift.cpp.obj : error LNK2001: unresolved external symbol "public: virtual float __cdecl IHeadMountedDisplay::GetLensCenterOffset(void)const " (?GetLensCenterOffset@IHeadMountedDisplay@@UEBAMXZ)
1>E:\TS2Prototype\Engine\Plugins\OculusRift\Binaries\Win64\UE4Editor-OculusRift.dll : fatal error LNK1120: 4 unresolved externals
1>  -------- End Detailed Actions Stats -----------------------------------------------------------
1>ERROR : UBT error : Failed to produce item: E:\TS2Prototype\Engine\Plugins\OculusRift\Binaries\Win64\UE4Editor-OculusRift.dll
1>  Cumulative action seconds (4 processors): 0.00 building projects, 29.04 compiling, 0.00 creating app bundles, 0.00 generating debug info, 0.78 linking, 0.00 other
1>  UBT execution time: 40.64 seconds
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.MakeFile.Targets(38,5): error MSB3073: The command "..\..\Build\BatchFiles\Build.bat UE4Editor Win64 Development" exited with code -1.
========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========

It seems like you still don't have all the files up-to-date. At this moment I can tell that the file \UE4-QA\Engine\Source\Runtime\HeadMountedDisplay\Public\IHeadMountedDisplay.h is not updated. You need to decompress the ovr_ue4_0.3.1_src_QA_04_2014.zip again and VERIFY that all files were successfully updated. Then remove all Intermediate directories, re-generate projects and re-build everything.

Just so we're on the same sheet, here's the copy of IHeadMountedDisplay.h I have. Is the 09/04/2014 ok?

Very weird. The file is correct and as you can see the methods such as 'GetChromaAbCorrectionValues' are defined right in that header file and they can't be 'unresolved'. Something's wrong with your building system.
I again tried to take the clean QA, decompress the .zip into it, build it - everything went smooth, no issues.
Can you also redo everything again: grab the clean UE4-QA, uncompress the .zip, gen projects and build UE4 project, Development Editor config, Win64 platform?

You're right. Completely clean goes in no problem.

I'm trying to find where I went wrong. It might be because I backed-up Engine folder before the splat by copying to the same level.

Thanks for your time, and humble apologies for the red-herring.