How to fix ShaderCompiler not working in 4.19?
In 4.18.3 I am able to use all of UE4's features just fine. Moving my projects over to 4.19 I noticed that I was getting stuck initialising at 45%; I tried to follow all the usual advice but I've finally been able to work out the problem- 4.19 for some reason on my system is not able to launch the shader compiler workers. When I install 4.19 and open a brand new project, it loads fine, however if I attempt to add shader features (mesh distance fields, clearcoat dual normals) or even alter any of the cached starter content materials, UE4 freezes and stops working. Opening the task manager I can see that no ShaderCompiler processes are created.
I've tried to look but have been unable to find anyone else discussing the ShaderCompiler not launching.
Any advice for getting the ShaderCompiler to work again as it does in 4.18.3?
asked Apr 04 '18 at 01:10 AM in Using UE4
For anyone coming to this thread at a later date, I found a solution in my case!
For me, the solution was uninstalling a third-party development tool called "IncrediBuild".
This was a tool included in one of Visual Studio's coding packages who's background service interfered with proper operation of Unreal Engine.
I was able to track this issue down with help from the members on the discord server when attempting to build a version of the engine from GitHub source and the build kept failing as a result of IncrediBuild. Whatever benefits this service purports to offer, my current suggestion if you encounter a similar error in your UE4 install is to remove this tool from your system.
answered Apr 05 '18 at 06:24 AM
Delete the temp folders and saved folder. btw, 45% is standard, it just takes a long time to compile. If you still' cant get it to compile, change material in any of the objects in the map. It will re compile, or a quick light bake?
answered Apr 04 '18 at 01:38 AM
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