Warning "Ignoring duplicate keyword line ~~~" when creating new shader graph

[snsnsnsn]

Hello, I am currently having trouble resolving the above issue.

How to reproduce

1. create a new project with the “2D(URP)” template of 2022.2.1f1
2. add shader graph 14.0.4 from the package manager.
3. right-click and add an asset by following the procedure “Create->Visual Effects->Visual Effect Graph” directly under the Assets folder.
4. in the shader file of the sub-asset of the created asset, I get the warning message “Ignoring duplicate keyword line ‘multi_compile_fog __ FOG_LINEAR FOG_EXP FOG_EXP2’”.

Is there a solution to this problem?
Thank you in advance for your help.

[yanard18]

I also saw similar problems from people who have spine packages in their project. So maybe that’s the problem