How can I solve that problem with "Shader Graph"?

I have a problem with the Package "Shader Graph". I installed it on my project, but then there came an error. You can find a picture of the error in the attachments. Then I tested it in other unity versions and I also reinstalled the package, but it did not work in any version of unity.

So I can not use it on my PC. Can you please help me if you know the problem?

[1]: /storage/temp/197423-unityerror.png