我以前曾经发生过这种情况.

I have had this happen to me before.

执行dotnet restore并删除obj和bin目录.

在技术上我可能不是正确的，但是我认为这里发生的是您的旧版本与具有新(或不同)引用的新版本产生冲突.

I may not be technically correct but I think what's happening here is your old build is creating conflicts with your new build that has new (or different) references.