Xamarin Forms PCL中的LoadApplication错误

Question

I created a new Xamarin Forms PCL solution, and in debug mode I checked the Enable ProGuard option and I selected Linking comboxbox to Sdk and User Assemblies . Now I run my application on android, after that it shows me an error in MainActivity.cs class and on line

LoadApplication(new App());

Error:

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object.

I do that because of to decrease the size of my release app, and I have to change the release mode to debug in order to check what happened.

Answer 1

As per: The type or namespace 'App' does not exist in the current namespace

Clean the solution Build the PCL Remove the PCL reference from the affected project(s) Re-add the PCL reference Build

I tried this solution and it works.

Answer 2

Take a look at your App.xaml.cs file. If you have a "InitializeComponent does not exist in the current context error", this is likely caused by a known VS bug.

Solution:

• Right click on App.xaml.cs and select Properties.
• Change the Build Action to "Content".
• Apply.
• Change Build Action back to C# Compiler.
• Clean Solution.
• Build and Deploy.