You must add a reference to assembly '7.AppCompat, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.Įrror CS0012 The type 'AppCompatActivity' is defined in an assembly that is not referenced.
Can anyone help? Below are the errors: Error CS0012 The type 'AppCompatActivity' is defined in an assembly that is not referenced. The surprising bit is that when I open an app created before I updated the IDE, it loads perfectly. I know many many others are having similar issues with VS/Xamarin on MacOS.After updating my VS 2017 to the latest version, when I create a new Xamarin app it loads with errors. If anybody knows how to help, please be very specific, everything else online has been very vague, 'need to update Xamarin.Forms' or something without much detail or procedural explanation. This is frustrating because I cant even start to develop or test my code immediately out of the box Xamarin/VS has issues. Ive so I set the Target Android version to be Android 7.1 (API 25)Īlso it seems that the packages folder under the Xamarin Droid project is empty, so i try to install the NuGet packages neededĪnd the same errors occur. Ive tried with several versions of android, however VS wont allow me to edit the Target Framework: For more information, contact the package author.įrom the solutions I have read, people have said I must have the same Target Android/API and Target Framework version.
You are trying to install this package into a project that targets 'MonoAndroid,Version=v2.3', but the package does not contain any assembly references or content files that are compatible with that framework.
As soon as the project is created there are already errors: Xamarin For MacĬould not install package '4 23.3.0'. The issue occurs in Visual Studio for Mac when trying to create a new Xamarin Forms Blank project. I am fully aware similar questions have been asked (and answered) However, nothing has worked for my particular case.
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