I've created a solution in VS2022 using the WPF application template (not the one that says (.net framework)) and when trying to run it I get the error popping up:
"The project doesn't know how to run the profile with name 'wpftestproject' and comment 'Project'."
See the image below, it's not an output window error but an actual pop-up window.
I'm on Windows 10 pro and trying to get this template solution to run (it should pop up a MainWindow).
I have no idea what could be the source of this issue and I'm not finding anything online.
One thing I noticed is that under application properties the "Target framework" is default to .NET6.0 and not .NET CORE 3.0 for some reason. Though changing this isn't fixing it.
I've also tried having a look over my VS installation, it doesn't seem to me that anything is missing but maybe someone else knows something:
Normally you need to install correctly, .Net desktop development and universal windows platform development.(Try to reinstall .Net desktop development)
And install the packages you need in individual components.
If reinstalling these does not help you, I suggest you choose update->repair
I have a Xamarin Cross Platform App in VS2017. I'm trying to add WCF service references and it seems I need to be able to uncheck Windows 8 and Windows Phone 8.1 from the list of Targets. However, I'm unable to do so.
When I right click on the project and choose properties I see this:
Project Properties showing Windows 8 and Windows Phone 8.1 as targets
When I click the "Change..." button I only see these options:
Change Targets options that don't include Windows 8, or Windows Phone 8.1
The "Install Additional Targets" link just takes me here: (Not helpful)
https://www.microsoft.com/net/download/visual-studio-sdks
Any idea how I can remove these targets and start making use of my WCF web services?
Thanks in advance!
Thanks for your comment Hans.
For anyone else running into the same problem with adding a Service Reference I followed these steps, which don't make any sense, but they worked:
Right click on the Xamarin project and choose Manage NuGet Packages. Uninstall Xamarin Forms.
Close and re-open Visual Studio.
Right click on the Xamarin project and choose Properties. Click the "Change..." button under Targeting. The .NET Framework dropdown was automatically set to 4.5 for me. I changed it to 4.6. Click OK. (Mine still said 4.5 on the properties window, but that's OK)
Close and re-open VS.
Go back to Manage NuGet Packages and reinstall Xamarin Forms.
Close and re-open VS.
Viola. Magic. I can now add Service References.
I have a Windows Service Application which contains one Service.cs and one Windows Form Application.Now as per my requirement i have to make a setup installer of this application which i did using Visual Studio Setup project under Deployment Section.
Now if i will install my setup Windows Service file will be added as Service and we can see it and its working fine also but i am not seeing the windows form application.
In the control panel add/remove program my application has been added as i am seeing it but windows form application is not showing in All programs of start button.
Please help me .
Thanks in advance.
If this is urgent:
In the File System Editor for the setup project, it should show the target machine's file system. By default, the primary outputs you've specified will be set to install to the "Application Folder". But what you want to do is to look under the "User's Programs Menu" (I can't remember if this shows up by default - if not, right click "File System on Target Machine", "Add Special Folder" and select this folder).
Then, in the right-hand pane, right click and choose "Create New Shortcut", navigate down through "Application Folder", select the windows forms application and hit OK. Then give it a suitable name.
If this isn't urgent - go and find a better setup tool and learn how to do similar things to the above using that tool. Visual Studio 2010 was the last version to include the Setup project support, so spending time learning this tool now is wasted time. Better to find a tool that will continue to work as you upgrade VS versions. I'd normally suggest WiX since it comes at a great price (free) but it does have a learning curve (since you author the setup in XML).
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 upgraded my Windows 7 machine to Windows 8.1 to be capable of developing Windows Store apps using Visual Studio 2013. When I open a blank project (Windows Store -> Blank App) and run it I get this error:
Unable to activate Windows Store app 'Package Name'. The App1.exe
process started, but the activation request failed with error 'The app
didn't start'.
See help for advice on troubleshooting the issue.
I already tried:
Reinstalling Windows (Clean install)
Reinstalling Visual Studio 2013
Installing Visual Studio 2012 (same error)
Deleting "bin" and "obj" folder
Cleaning the solution
Uninstalling the app from start menu
Creating a new project
Acquiring the license multiple times (the license is valid)
Making sure that app.config doesn't exist
Investigating the Windows Event Log which says
Activation of the app 'Package Name' for the Windows.Launch contract failed with error: The app didn't start..
but found nothing useful
Adding a new Windows user
Run everything as administrator
and at last, changing the desktop background :)
None of this did bring a solution. Does anyone have an idea what else could be the reason for this error?
Thank you.
I found a solution. The problem was that the drive I was working on was encrypted (TrueCrypt). Moving the output folder to an unencrypted drive solved the problem.
If switching from x86 to x64, make sure your Project Properties Platform Target and Configuration Platform are BOTH set to X64.Hint you need to change to x64 debugging in the Build menu/Configuration Manager dialog to get the Configuration Platform in Project Properties to update.
This caused the activation error problem to be resolved for me
HTH
Robert
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.
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.
If you are receiving this error and are developing for Microsoft Hololens:
You are trying to build to a device that is asleep. To wake your device, tap on the button on the back (on/off button).
Good luck!
I've tried all the solutions found on the net and none applied to my case, not even this one.
The only way I could make it work was changing the Package Name in the appxmanifest.
This made me think there must be some leftovers somewhere around with the old package name, that are either corrupted or inaccessible because of some permissions issues.
It might be just a coincidence but the problem appeared twice after I tried using the app verifier (appverif.exe)
Now I reassociated my app to a store app package and things seem to continue working...
In my solution, I have a non-UWP project (Multiplatform development) that builds with a different Solution Platform.
I was attempting to run the UWP project in Debug, but as the wrong Solution Platform.
Edit:
I also get this when I build my project for Any-CPU, instead of x64.
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.
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
I had the same problem a couple of weeks ago. A simple restart helped me out.
Also tried this one?: http://irisclasson.com/2012/11/04/problem-unable-to-activate-windows-store-app-the-app1-exe-process-started-but-the-activation-request-failed-with-error-the-app-didnt-start/
Hope its usefull to you
I managed to fix the same problem by rebuilding the solution. (In Vis Studio 2012)
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.
I had the same issue with a Windows Store App after moving some files around. I ended up opening an older file (as Admin) to see if it would run and found that it did. I then returned to the file that would not and it ran also. I believe opening the older file (as Admin) reset the paths for development and the permissions. Hope this helps.
Same problem - moved my project from the TrueCrypt Partition and all was fine.
I had a similar issue, solved by choosing a new publisher certificate. And of course restarting Windows
I had same issue. Selecting proper Platform solved my problem. i.e. My application was selected to run under x86 platform, while my OS & SDK supports x64. Selecting x64 solved my problem.
I had the same problem on a UWP app when creating a package for Testing, but not when runing directly from Visual Studio 2017.
The solution was to select only the architecture that I am using to Debug the App, Instead of all options (x86, x64, ARM).
Here is the option choosed on Visual Studio
There are can be a couple of things that might be causing this problem.
Here are the trouble shooting steps that helped me out:
Step 1 : Check to see if running visual studio in the elevated mode (Run as an Administrator) helped solve the problem. (Sometimes, your folder permissions might get mangled due to various softwares that you might have install)
Step 2 : Delete all the bin and obj folders in your project and rebuild the projects in your solution manually.
Step 3 : Do a quick check of your System Type (x64 or x86 etc) and see if your project is targeted for the same.
Here is how to do know your system type: Win + R > cmd > systeminfo
If it says x64, then make sure to select the Solution Platforms (In visual studios top action bar) as x64 or so forth depending on your architecture.
Thats all I did to solve my problem.
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"
A rather niche situation and solution...
I was remote debugging a UWP app for a while successfully. After some reworking, I ran into this issue. In the main app project I had set the windows version compatibility accordingly (I am running the app on a Windows 10 IoT Enterprise 2019 device) but had forgotten to match those windows target and minimum versions for the Library Project that was in my solution.
After cleaning and re-deploying the solution (first uninstalling the app from the remote device), the problem went away.
Whenever I create a new application in Visual Studio for Windows Phone 7, every time I build my application this error pops up:
The application could not be launched
for debugging. Ensure that the target
device screen is unlocked and that
application is installed.
Due to this error my application is not running in the emulator. I tried reinstalling the SDK and Visual Studio but can't seem to solve this error.
When you say a 'new application', do you mean a completley new application, or have you added some code? I've heard this error occurring if you try and add non WP7 project to your WP7 solution. Right-click on your solution and select Properties. Open the Configuration Properties panel on the left and make sure that Build and Deploy are both selected.
Also, make sure your project is the startup project (right click on your project and select Set as Startup Project.
Your Visual Studio toolbar should look like this (Having Windows Phone 7 Emulator in the target dropdown):