Xamarin项目未正确从共享库继承

Question

I've started working with Xamarin Forms using the .NET Standard. When trying to use a dependency injection for platform specific code (in this case, different code for Android and iOS), the project can not find the interface from the base project.

I was following a guide with an example shown below

However Visual Studio does not find my interface from the base project in the Android / iOS projects.

The namespace can not be found either. The only one it finds is ProblemCode.Android. How would I fix this issue?

Answer 1

I don't see a reference to the your shared project in the last image.

However, i have noticed with .NetStandard , Xamarin gets confused sometimes, Though it can get confused at the best of times for no reason at all.

Usually when i have benign problem with Xamarin i try the following sets.

• Clean the solution
  • Clear the Bin and Obj directories of all projects.
  • Clean the solution
  • Restart visual studio
  • Rebuild the solution
• Sometimes i have needed to Remove/Add the references to the shared .NetStandard projects back to the Device Projects
  • Maybe make sure it builds independently without problems
• In some cases (probably not this one) it helps to Reinstall all nugets

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Note : I'm not sure this will help you in your case, but it was at least worth mentioning