After installing .Net 7, when I use dotnet watch I get this error:

Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'System.Runtime, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. File name: 'System.Runtime, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' at System.Reflection.RuntimeAssembly.GetType(QCallAssembly assembly, String name, Boolean throwOnError, Boolean ignoreCase, ObjectHandleOnStack type, ObjectHandleOnStack keepAlive, ObjectHandleOnStack assemblyLoadContext) at System.Reflection.RuntimeAssembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase) at System.Reflection.Assembly.GetType(String name, Boolean throwOnError) at System.StartupHookProvider.CallStartupHook(StartupHookNameOrPath startupHook) at System.StartupHookProvider.ProcessStartupHooks()

I can successfully build and run the project using Visual Studio, but can't use dotnet cli. How can this error be fixed?

CodePudding user response：

After changing the target framework of my project, now I can use dotnet watch run. Could it be solved in another way, I don't know.

As a workaround, global.json below may help: select the .NET version to use

On rare occasions, you may need to use an earlier version of the SDK. You specify that version in a global.json file. The "use latest" policy means you only use global.json to specify a .NET SDK version earlier than the latest installed version.

Create a global.json file and point it to the v6 SDK. global.json can be placed anywhere in the project file hierarchy.

{
    "sdk": {
        "version": "6.0.403"
    }
}

CodePudding user response：

For me, the solution was to add a global.json to the root of your project. With the SDK version, you want to use.

{ "sdk": { "version": "6.0.403" } }

For me 6.0.403 that forces dotnet watch to use this version.