症状 Fody: Could not find a weaver named 'PropertyChanged'. If you have nuget package restore turned on you probably need to do a build to download the weavers. Alternatively you may have added a weaver to your 'FodyWeavers.xml' and forgot to add the appropriate nuget package. Perhaps you need to run 'Install-Package PropertyChanged.Fody'. This url may provide more information http://nuget.org/packages/PropertyChanged.Fody/ 対処 notepad $(your_solution_dir)\nuget.config <configuration> <config> <add key="repositorypath" value="..\..\your_package_dir\packages" /> </config> </configuration>