Error installing universal shaders

[JN7567]

Unity kept on crashing when I was importing Gaia 2021 and when I trying to install the universal pipeline shader it brings up an error saying

 

"The target shader with the name Graphs/PW_General_ShaderGraph_URP from the shader mapping entry PWS/PW_General_Forward could not be found! Unity engine.Debug:LogError(object)"

 

"The target shader with the name Graphs/PW_General_ShaderGraph_URP from the shader mapping entry PWS/PW_General_Deferred could not be found! Unity engine.Debug:LogError(object)"

 

But i have those things in my assets files what should I do 

[Bryan]

Can you please tell me what Unity version you are using?