Bug 3213 - Failed to install assemblies message when debugging on an android device with FastDev
Summary: Failed to install assemblies message when debugging on an android device with...
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Android Add-in ()
Version: unspecified
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-02-02 18:51 UTC by lindsey.driscoll
Modified: 2016-08-03 15:37 UTC (History)
7 users (show)

Is this bug a regression?: ---
Last known good build:

Galaxy tab logcat (129.27 KB, text/plain)
2012-02-02 18:51 UTC, lindsey.driscoll
Message Log (4.71 KB, text/plain)
2012-02-02 19:02 UTC, lindsey.driscoll

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report on Developer Community or GitHub with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:

Description lindsey.driscoll 2012-02-02 18:51:35 UTC
Created attachment 1310 [details]
Galaxy tab logcat

Getting a "Failed to install assemblies" message when trying to debug an application on an android device (not emulator) and therefore the application cannot be debugged

Steps to reproduce:

1. Create a new "hello-world" type android solution
2. Debug the application on the device in Active Configuration: Debug
(Make sure it is on a clean device - no MonoAndroid API Support or MonoShared runtime on device)

Actual Result:

Get error saying "Failed to install assemblies" when deploying to device and user cannot debug

Expected result:

No error, assemblies installed and user can successfully debug


Macosx Lion
MD: 2.8.5
MfA: 4.0.3


Samsung Galaxy Tab: 7.0 Plus, Honeycomb

Things to note:

- Will test on a different device, as it may be a device specific issue, and modify the severity accordingly
- When you debug the first time this error occurs, if you attempt to debug again everything gets deployed successfully and the user is able to debug
Comment 1 lindsey.driscoll 2012-02-02 19:02:31 UTC
Created attachment 1311 [details]
Message Log
Comment 2 PJ 2012-02-13 12:28:17 UTC
*** Bug 3427 has been marked as a duplicate of this bug. ***
Comment 3 PJ 2012-02-13 12:29:35 UTC
Repro'd on HTC Flyer with Gingerbread (that's the duplicate)
Comment 4 Admin 2012-02-14 16:53:55 UTC
Important info to gather for this issue:

- run "adb shell ls -l /data/data/[app name]/files/"

Hopefully this will list all the files and directories inside, one of which is going to be a directory called .__override__ . If this directory doesn't show up, run adb shell ls -l /data/data/[app name]/files/.__override__

The objective is to figure out what are the permissions for the files and for the .__override__ directory, particularly who the owner is (root or app## (where ## is a number)). If the owner is root, this can cause fastdev to fail.

- try deploying from the command line

In the project directory, run "xbuild project.csproj /t:Install /verbosity:detailed" (replace project.csproj with your project filename)

This will do much the same thing that MD does (with lots more logging), but the codepath is slightly different. If this works consistently, then it's an MD-only bug and will require some additional testing.
Comment 5 PJ 2012-02-20 17:49:07 UTC
360 Logica is experiencing this issue with 
LG-P500 2.2 Froyo on RELEASE
Waiting for packaging processing to complete
Getting package list from device
Installing package
1938 KB/s (5715942 bytes in 2.880s)
pkg: /data/local/tmp/JetBoy.JetBoy-Signed.apk
Installing assemblies
74% complete74% complete
Failed to install assemblies

on MFA 4.0.5, MD
Comment 6 PJ 2012-02-20 18:29:43 UTC
Shana will send a new build to QA to help identify this issue.
Comment 7 PJ 2012-02-20 18:31:11 UTC
Additional environment, slightly modified behavior (100%Completed100%Completed, then Failed to Install Assemblies)

Release mode deploy to Galaxy Tab using MfA4.0.3, MD2.8.6.4, Windows 7:


Despite saying Failed to Install Assemblies, the app is loaded on device and works correctly. Without cleaning device or solution, reloading MD and re-running will work fully without generating an error. 

To re-experience crash, delete all app data from device then clean/rebuild/run

This behavior is not seen by me using Visual Studio.
Comment 8 Peter Collins 2013-05-21 15:21:35 UTC
I am unable to reproduce on debug and release with fastdev enabled on our current stable of XA (4.6.6 - 6d7480e9). Considering some of the more recent fastdev issues encountered and fixed, I am marking this as resolved.