heproblemseemstobethe(astheerrorhints)thepropertybagwithinthesolutionfile问题似乎是解决方案文件中的propertybag（如错误提示的那样）Soaworkaroundofthisissue:因此，此问题的解决方法：Youhavea"solution.sln"createdwithVS2019orearlier您