Unable to activate windows store app the app didn't start

Question

First of all I would like to say that I already tried all the solutions I could find on the internet, including Unable to Activate Windows Store App

I recently upgra

Answer 1

Ensure that ALL APPLICATION PACKAGES has "read" permissions on C:\Windows.

My organization's group policy likes to strip all permissions from C:\Windows, including the ALL APPLICATION PACKAGES group . By adding it back in and setting Read & execute, List folder contents, and Read, I'm able to run the app from Visual Studio without any problems.

See What to do if your Windows 8 Modern App fails to start for more tips, including this one.

Answer 2

I had the same problem with Visual Studio Community 2015 while trying to debug an Blank App (Universal Windows) using Visual C#.

Visual Studio was installed on Disk C:(SSD), and Project files were placed on D:(HDD). I´ve created a Folder on C: Drive and placed my test project there. After that Error messages gone.

Answer 3

I had unticked an option while trying to get debugging working prior to this error, the fix for me was to re-check the "Compile with .NET Native tool chain"

Answer 4

I have tried many solutions and nothing worked. At the end what worked for me was to change the startup project to windows phone 8.1 and after it runs OK I changed it back to windows 8.1 and it runs OK. It works for me as I am making a universal app. Hope it helps anyone else.

Answer 5

I had the same Error and tried after loading the SQLite Package for WP 8.1 some things above:

not working:

• Clean and Rebuild
• Restart Computer/Phone

what did the deal (for me)

• I put Platform Target under Properties -> Build to ARM instead of x86

Hopefully this might help somebody else facing this ridiculously informative Errormessage.

Answer 6

I had the same problem in Visual Studio 2015 Update 3, Windows 10 Build 10586.494.

The error came up when trying to start any UWP app that I compiled without .NET Native Toolchain. With Native Toolchain enabled, the apps would start.

Installing a new (blank) app manually fixed the error for me:

• Start VS 2015
• File > New > Project.
• Blank App (Universal Windows) Visual C#. OK.
• Make sure to be in Debug config
• Right click on Project > Store > Create App Packages
• No. Next.
• Select Debug for all architectures.
• Create
• When packaging is finished, open Explorer to the project path / AppPackages / [...]_Debug_Test
• Right-click on Add-AppDevPackage.ps1 > Run with PowerShell
• Follow the instructions
• Start the installed app from Start Menu