My _at.cfg:
 
public net.minecraftforge.client.model.pipeline.VertexLighterFlat blockInfo
#I'm also tried following:
public net.minecraftforge.client.model.pipeline.VertexLighterFlat *
	gradlew setupDecompWorkspace log:
 
:deobfMcSRG
Applying SpecialSource...
1 Broken Access Transformer lines:
 ---  net.minecraftforge.client.model.pipeline.VertexLighterFlat *
:deobfMcSRG FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':deobfMcSRG'.
> Your Access Transformers be broke!
	AT that targetted to vanilla classes(in package new.minecraft) work correctly.
 
	Thx for your answers in advance)