Errors Unreal Compile

ShaderCompilingManager

 >	UE4Editor-Engine.dll!FShaderCompilingManager::ProcessCompiledShaderMaps(TMap<int,FShaderMapFinalizeResults,FDefaultSetAllocator,TDefaultMapKeyFuncs<int,FShaderMapFinalizeResults,0> > & CompiledShaderMaps, float TimeBudget) Line 1210	C++

Need to open your project sln, go under Programs and compile "ShaderCompileWorker" project

Error on startup after switching branches

 GetObjectArrayForDebugVisualizersDelegate@FCoreDelegates@@SAA ..... http://imgur.com/1zoH3ko

This was happening after switching from release branch (which contained 4.11 preview) to 4.10 branch. I checked and the file C:\Users\Luke\Documents\Unreal Projects\MyProject2\Binaries\Win64\UE4Editor-MyProject2.dll was old. I deleted all files older than today, then used

* git reset --hard
* git checkout .

Recompiled.