Assertion failed: Tokens.Last ().EndsWith(STABLE_ CSV_ EXT) || Tokens.Last ().EndsWith(STABLE_ CSV_ COMPRESSED_ EXT)

I’m testing the PSO caching strategy, and I’m going to combine scl.csv and rec.upipelinecache File to generate stablepc.csv File, I added parameter for ue4editor- Cmd.exe ,when the following error is prompted:

Assertion failed: Tokens.Last ().EndsWith(STABLE_ CSV_ EXT) || Tokens.Last ().EndsWith(STABLE_ CSV_ COMPRESSED_ EXT) [ File:C :/Program Files/ue_ 4.25/Engine/Source/Editor/UnrealEd/Private/Commandlets/ShaderPipeline CacheToolsCommandlet.cpp ] [Line: 526]

What’s wrong with it?How can i fix it? help please.