NGen CertKit: App certification failed during native image generation - Surface RT Only - by smartapp7

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ID 776204 Comments
Status Closed Workarounds
Type Bug Repros 0
Opened 1/10/2013 2:02:45 AM
Access Restriction Public


I have an app which is ready for deployment to Windows store, I ran the Windows Application Certification Kit on my laptop for x64\x86 and it passes however when I deploy the app to my Surface RT and test the app using WACK for RT it fails.

The error I am getting is native image generator failing to compile third-party referenced assemblies, the log file shows the this error for all third-party libraries I am using not just one 
Those libraries are Caliburn Micro, Syncfusion, Callisto and WinRT Xamk Kit

My app also uses SQLite which I believe is native C++ code but I do not see an error related to it

The error is:

"Failed to compile because Windows cannot verify the digital signature for this file ."

Many Thanks
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Posted by John [MSFT] on 1/29/2013 at 10:14 PM

I hope you have been able to resolve the issue with the App certification. Please let us know if you have any further questions.

Posted by John [MSFT] on 1/25/2013 at 9:31 AM
Thank you for your feedback. We are aware of various scenarios where the NGen test inside app certification kit incorrectly reports digital signature errors, however based on your description I wasn't able to determine if your case matches one of the known scenarios. If you haven't already done so, could you please take a look at the list of known issues at If none of the suggestions from that web page resolve your issue, please send me a copy of the NGen test log file (search the %userprofile%\appdata\local\microsoft\appcertkit folder for the log file with names matching "Performance_Test__trace_Launch*.txt"), and I'll investigate further. We are actively working on fixing digital signature releated errors in all scenarios we're aware of, and will release it in a future version of Windows. We apologize for the inconvenience caused by this issue. Thanks. John Chen, Common Language Runtime
Posted by Macy [MSFT] on 1/10/2013 at 3:34 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(