Reputation: 10547
I am having issue debugging Android project. I can deploy to device and run it, all works fine but if I try to debug, the app gets deployed to the device and very briefly opened, splash screen shows up but the app then closes.
I am using Xamarin Forms on Visual Studio 2015.
Device is running Android Oreo (8.0.0). Another device running Android 6.0.1 is debugging fine.
The output shows following:
InspectorDebugSession(11): StateChange: Start -> EntryPointBreakpointRegistered
InspectorDebugSession(11): Constructed
Android application is debugging.
InspectorDebugSession(11): HandleTargetEvent: TargetExited
InspectorDebugSession(11): Disposed
Couldn't connect to logcat, GetProcessId returned: 0
I checked Logcat and it seem to be having issues finding FFImageLoading library:
Time Device Name Type PID Tag Message
09-18 14:35:52.361 Huawei Nexus 6P Debug 1560 Mono AOT:
image '/usr/local/lib/mono/aot-cache/arm/FFImageLoading.Platform.dll.so'
not found: dlopen failed: library "/data/app/myapp.android.dev-
WEb1bz8edgF7vwx6uCoZ-A==/lib/arm/libaot-FFImageLoading.Platform.dll.so" not found
I have added Nuget package for FFImageLoading to my projects and Droid project references show it as in image below:
Upvotes: 8
Views: 9832
Reputation: 65
Upvotes: 1
Reputation: 6893
One another reason for that is if you dont enable usb debugging on your device, VS 2017 still recognizes your phone and installs the app on your phone. Just after debugging starts, it will throw this error and not continue debugging. Make sure to enable Developer Mode -> Usb debugging like described here https://learn.microsoft.com/en-us/xamarin/android/get-started/installation/set-up-device-for-development
Upvotes: 0
Reputation: 71
I also had this issue with Android 8.1 and Visual Studio 2017 15.7.4.
There are three steps to got it working again.
And the final step is to delete following Apps from your device:
After these steps you don't need to disable "Use Shared Runtime" and can Deploy and Debug much faster.
Upvotes: 7
Reputation: 908
This worked for me :-
Deselecting the 'Use Shared Runtime' in Project Properties > Android Options > Packaging properties
Upvotes: 14
Reputation: 6953
This is a known issue with Oreo and Xamarin Android on Visual Studio for Windows. It works on Visual Studio for Mac apparently. It will be fixed in an upcoming release. In the mean time there is a work around down near the bottom of the bug link above (comment 20).
Upvotes: 1