• Error MSB6006: “sgen.exe” exited with code 1. (MSB6006)

    In one of my Xamarin Forms (using Visual Studio for Mac) project I’ve found the following error message when I try to deploy it on my iPhone for testing:

    Error MSB6006: “sgen.exe” exited with code 1. (MSB6006)

    Even though the Build output contains some more data, I did not find any clue how to fix it:

    Unhandled Exception:
    System.Reflection.ReflectionTypeLoadException: The classes in the module cannot be loaded.
    at (wrapper managed-to-native) System.Reflection.Assembly:GetTypes (System.Reflection.Assembly,bool)
    at System.Reflection.Assembly.GetTypes ()
    at Driver.Run (System.String[] args)
    at Driver.Main (System.String[] args)
    [ERROR] FATAL UNHANDLED EXCEPTION: System.Reflection.ReflectionTypeLoadException: The classes in the module cannot be loaded.
    at (wrapper managed-to-native) System.Reflection.Assembly:GetTypes (System.Reflection.Assembly,bool)
    at System.Reflection.Assembly.GetTypes ()
    at Driver.Run (System.String[] args)
    at Driver.Main (System.String[] args)
    /Library/Frameworks/Mono.framework/Versions/5.0.1/lib/mono/msbuild/15.0/bin/Microsoft.Common.CurrentVersion.targets(3366,5): error MSB6006: “sgen.exe” exited with code 1.
    Done building target “GenerateSerializationAssemblies” in project “MyApp.iOS.csproj” — FAILED.
    Target _CleanRecordFileWrites:
    MakeDir Task
    Directories:
    obj/iPhone/Release/

    Done building project “MyApp.iOS.csproj” — FAILED.

    Build FAILED.

    Postings in Xamarin Forum recommend to check the versions, but that did not help for me.

    Fortunaly there is still Xamarin Studio for Mac available. So I opened my project from there and tried to deploy it to my iPhone. It still fails, but I get a much better error message:

    /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/iOS/Xamarin.iOS.Common.targets: Error: No installed provisioning profiles match the installed iOS signing identities.

    And that’s true.

    After fixing that, I was able to deploy the iOS app to my iPhone using Xamarin Studio.

     

    If that does not help, maybe check whether your target device is included in your certificate:

    ApplicationVerificationFailed: Failed to verify code signature of …/MyApp.iOS.app : 0xe8008015 (A valid provisioning profile for this executable was not found.)
    error MT1006: Could not install the application ‘/iPhone/Release/MyApp.iOS.app’ on the device ‘iPhone’: Your application failed code-signing checks. Check your certificates, provisioning profiles, and bundle ids. Probably your device is not part of the selected provisioning profile (error: 0xe8008015).

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