Xamarin Forms Gotchas

AppData\Local\Xamarin\Android.Support.v7… doesn’t exist or file corrupted

Delete all files in C:\Users\YOURUSER\AppData\Local\Xamarin\zips

The type or namespace name ‘App’ does not exist in the namespace ‘BeCarefulOfLongNamesApp’ (are you missing an assembly reference?)

Right click your solution > Manage NuGet packages > Updates > Update all Xamarin related packages for each project you have problems.

The “XamlCTask” task failed unexpectedly…

Clean and rebuild the solution after fixing errors or check if your path exceeds the maximum length (260 characters).

Can’t connect to Mac

  1. Enable Remote Login
  2. Install Xamarin Studio
  3. Install XCode and follow these steps
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Deployment failed due to an error in FastDev assembly synchronization

On your emulator configuration, set your internal storage to double your deployment size and if that fails set your SD card size to your deployment size.

EmulatorSetting