I have finished a small Windows 10 app in C# and XAML and now I want to do a "Release" build of the app so that I can create app package.
The problem is: VS 2017 cannot create a release build of the app.
Please see the error message which VS give out after trying to release-build for around 20 mins.
I'm using Syncfusion PDF Viewer control in the app & hence have added reference to "Syncfusion Controls for UWP XAML".
I have tried un-checking the "Compile with .NET Native tool chain" in properties page. It works and I can do a release-build, BUT the Windows App Cert Kit "fails" my app.
Another information which I would like to add is: even if I do a File -> New UWP Project and try to do a release build of that - it still does not work.
I've also read the issue here, but it's does not seem relevant to my project. e.g., I am not referencing a winmd type.
What could be wrong?
Using the hammer approach, I deleted both the "obj" and "bin" folders (because the size didn't look right and anyways this is a demo project and I have backup)
After deleting, I set to release and build - and it worked!
Good thing, but it took 40 mins. Then after the first release-build, I changed some xaml and added some code (added button which show "Hello" dialog) and tried to build again. It failed.
Then I deleted bin and obj folders and then it worked again. But combined size of both folders is now 3.92 GB.
So everytime I need to do a release-build, I have to delete bin & obj folders and wait for appx 35~45 mins.
I will now repair VS 2017 as #Marian suggested and will let you know what happens.
I do not know if this is an answer or it's rather a work-around.
We are unable to reproduce the mentioned compilation error issue while running the sample in Visual Studio 2017 with Release mode. We have attached the sample for your reference. Please find the sample from below link.
http://www.syncfusion.com/downloads/support/directtrac/189981/ze/Sample687065144.zip
Kindly provide us the following details to reproduce the issue at our end:
• Simple sample along with the input document.
• Operation System:
• .Net Framework:
• Syncfusion Essential Studio Version:
• RAM:
• System Culture Information:
The above details will be helpful for us to assist you better on this.
Regards,
Priyanga.E
The reason for this is "Syncfusion controls". Details about this here
You need to remove the extension ""Syncfusion Controls for UWP Xaml" and add path to syncfusion libraries(which you use) .
I just downloaded Visual Studio Code and my Intellisense is not automatically working.
The two settings that control this seem to be set correctly:
"editor.quickSuggestions": true,
"editor.suggestOnTriggerCharacters": true,
I do get an Intellisense menu when i start typing and press "CTRL + Space", but this gives me a list of everything and not things specifically for my object.
What am i doing wrong?
If you have a workspace and for some reason have multiple folders you may need to 'help' omnisharp a bit. I initially had a big project and added a solution for it further on - ending up with TWO workspace folders (one to a startup project and one to the solution). After composing that setup I experienced only the first project to have intellisense working.
Solution to get intellisense working was to make sure omnisharp worked its way from the solution instead of the project:
Ctrl + Shift + p
Write "OmniSharp: Select Project" and press Enter.
Choose the solution workspace entry.
Inspiration gotten from 'swaner':
https://github.com/OmniSharp/omnisharp-vscode/issues/1889
Visual Studio Code's more advanced editing features (IntelliSense, refactoring tools, etc.) only work in C# files if you have a project.json file or *.sln file that VSCode is aware of. Open the folder (i.e. open the File menu and click Open Folder...) with the *.sln file or project.json and VSCode will attempt to find all project/solution files in the folder. If there are multiple projects, you may need to select one from the projects button on the right side of the status bar (bottom of the window).
From the VSCode website:
Selecting a project.json-file is opening a DNX-project and VSCode will load that project plus the referenced projects
Selecting a *.sln-file is opening a MSBuild-project. It will load the referenced *.csproj-projects and sibling or descendant project.json-files but no other project files that are referenced from the solution file.
Selecting a folder will make VSCode scan for *.sln and project.json files and VSCode will attempt to load them all.
If you are start your project with c#, then some time you haven't download extension.
Process by written
Ctrl + Shift + p.
Write "OmniSharp: Select Project" and press Enter.
Choose the solution workspace entry.
Then enable the c# extension for "OmniSharp : Project".
Process by image
Downgrading to 1.23.9 of the C# VS Code extension fixed the intellisense for me. So if nothing else is working for you, perhaps try installing an older version of the extension (doesn't necessarily have to be that exact one I mentioned). You can do this by selecting this option in VS Code:
As of the 0.5 version I have found that I need to close and re-open my working files to get some new intellisense information to start working for my own files. This usually happens after I have a file open that needs to use type information from another file I just created. Until I close and re-open them (within the editor) the intellisense doesn't always work.
Hopefully this is something that'll get fixed as the app matures.
Inorder to make the intelligence working, the Visual Studio Code extension OmniSharp should be there along with Mono. When you open a project/solution folder, the OmniSharp gets the project dependencies from either project.json or from the dotnet solution file (if the project/solution created with other versions of visual studio).
So, when you look at the omnisharp's output window after immediately opening the project/ solution folder, you may see the following lines
Starting OmniSharp server at 2017-9-18 09:26:44
Target: /Users/{username}/Source/{Your Solution Folder}/{Your Solution
file}.sln
OmniSharp server started wth Mono
Path: /Users/{username}/.vscode/extensions/ms-vscode.csharp-1.12.1/.omnisharp/run
PID: 5808
post that, you may see couple of lines coming up like below,
[info]: OmniSharp.MSBuild.MSBuildProjectSystem
Update project: {Your Project1 Name}
[info]: OmniSharp.MSBuild.MSBuildProjectSystem
Update project: {Your Project2 Name}
....
they mean that your projects are getting recognised by OmniSharp Extension.
If you get any error message informing you about timeout, please get into the settings of the Visual Studio Code, and add a configuration override like the one below:
"omnisharp.projectLoadTimeout": 200
I know it is too long to wait for 200 seconds. But don't worry, this won't stop you anymore working with project files. But, remember that the IntelliSense will be automatically available once all the projects in the folder are successfully loaded.
Feel free to extend the Timeout setting since it will help you getting intellisense even-though you are not getting it immediately.
Here is another link with the same solution: https://github.com/OmniSharp/omnisharp-vscode/issues/1585
Hope my information helps you! Enjoy your VSCode!
This case was for an existing project that was working fine before. Opened via the vs code "recent" history.
For dotnet core. I opened my project's *.csprog file, made no changes, and saved it via the vs code editor.
As soon as I saved, all of the intellisense stuff starting working again in my other files within that project.
Another troubleshooting strategy to try if none of the above works out is uninstalling Mono, which is unnecessary anyways if you're using .NET Core. I also experienced a sudden disappearance of Intellisense after pulling changes to one of our enterprise repos that included an upgrade from ASP.NET Core 2.0 to 2.1. Strangely, at the same time, Intellisense was working fine in another C# project repo running ASP.NET Core 2.2.
For the project in question, I was puzzled to see successful logs for each reboot of the Omnisharp server as well as perfectly clean builds and runs. The puzzlement increased as I compared these Omnisharp logs to those from the 2.2 project and found them effectively identical.
Upon uninstalling Mono, the one detail that changed is how Omnisharp started. Now it boots up from a shell script located at ~/.vscode/extensions/ms-vscode.csharp-1.19.0/.omnisharp/1.32.18/run. Previously, Mono itself was booting the server from the executable at ~/.vscode/extensions/ms-vscode.csharp-1.19.0/.omnisharp/1.32.18/omnisharp/Omnisharp.exe.
Other troubleshooting I attempted in this instance though to no avail:
dotnet clean / Deleting bin and obj directories
Updating launch.json to point at the proper /bin/Debug/netcoreapp2.1 build
directory
Wiping my local nuget cache
Restarting Omnisharp
Uninstalling and reinstalling VS Code, as well as bumping back a version from 1.33.1 as the breakage coincided oddly with the March 2019 update
Uninstalling and reinstalling the C# VS Code extension, as well as bumping back a version from 1.19.0 given other users' reports of said version interfering with Intellisense for certain projects*
Adding a global.json file at project root to override default utilization of latest .NET Core SDK (mine was 2.2.105) and run instead using 2.1.302 in concert with the project's version
Wiping/rebuilding the project .sln file
Specs: VS Code 1.33.1, C# Extension 1.19.0, MacOS High Sierra 10.13.6.
*NB: As it turns out, in another .NET Core 2.1 project with the same issues in VS Code as described above, uninstalling Mono alone did not fix things. I also did wind up needing to bump back the C# extension to v. 1.18.0 to recover Intellisense. Weird.
The issue I had was OmniSharp was an older version. I set the flag to update to latest version in Settings.json file. This ensures the extension is always the latest version.
"omnisharp.path": "latest"
And restarted VS code. That fixed it for me.
Simply reinstall the extension and restart the VSCode/PC.
I use Task Manager and kill the Visual Studio Code process, then restart Visual Studio Code, the intellisense shows and fixed.
I've had some good experiences in C# with this extension so far:
https://marketplace.visualstudio.com/items?itemName=jchannon.csharpextensions
This extension traverses up the folder tree to find the project.json or *.csproj and uses that as the parent folder to determine namespaces.
Try "Install Extension" from command Pallete - probably if C# intellisense is not there:
https://code.visualstudio.com/docs/customization/colorizer
if intellisense in not working for react js or javascript or node js this solution will help for windows
uninistall type script by typing npm uninstall -g typescript
install specific version of type script that is 3.3 by typing npm install -g typescript#3.3
add the typescript location in vscode by navigating to file > Preferences > settings > here search for edit in setting.json then add this path "typescript.tsdk": "/Users/yourusename/AppData/Roaming/npm/node_modules/typescript/lib"
settings.json should look someting like this
{
"editor.suggestSelection": "first",
"vsintellicode.modify.editor.suggestSelection":"automaticallyOverrodeDefaultValue",
"typescript.tsdk": "/Users/yourusername/AppData/Roaming/npm/node_modules/typescript/lib"
}
I was able to fix this by changing the Api Compatibility Level from .Net Standard 2.0 to .NT 4.x. You can find this setting on Project Settings / Player.
After that, intellisense started working again.
This is because of C# extension issue.
Reinstall the extension will work.
https://code.visualstudio.com/docs/editor/intellisense
https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csharp
I fixed this with a multiple project solution in .net5 / .net core 3.1 by
opening each project (not the sln folder) in VSCODE. This then prompts to add the resources/ .CSX? files to the project; enabling intellisense, per project. Finally close that window and reopen the solution folder and all works as expected.
See image
Add VSCode assets
Downgrading to 1.23.9 of C# for Visual Studio Code (powered by OmniSharp).
https://i.stack.imgur.com/VrdJl.png
After trying several things I looked at the OmniSharp logs only to realize that because I had two different sln files in my workspace. It had picked up the “other” one and thus wasn’t working. I deleted it, reopened vs code, and all is well again.
For me I had been working without internet for a long time. It had previously been working but then stopped. I closed+reopened VSCode with a stable wifi connection and the Output tab in VSCode popped up, displaying the the extensions were re-installing. After that it worked!
in my case , the extension wasn't enabled
I just had this happen (this being no code completion suggestions appearing). What resolved it for me was changing the VSCode Editor package in Unity to a previous version and then back to the current version.
For me, this was going from 1.2.0 to 1.1.3 and then back to 1.2.0. I believe removing and reinstalling 1.2.0 would have accomplished the same.
Window > Package Manager > Visual Studio Code Editor
I know this is probably the most obvious answer. But I had enough dealing with VS Code ridiculous bugs. You should be focusing on code, not the buggy IDE. Their documentation doesn't make it easy either to debug.
Steps for complete uninstallation:
Save your personalization files such as keybindings.json,
Just put it on GitHub or something so whenever you need have trouble with VS Code you simply just need to go to GitHub and copy-paste it.
Uninstall VS Code completely
When you uninstalled VS Code, it doesn't erase your extension files and some old settings. This is the cause of the re-installation ended up the same. Horrible move VS Code. For the list of the files that you must delete, you can check out this answer.
Go to their website and install the new one.
I hope this helps some people who are already had enough with the VS Code ridiculous bug.
In my case, the issue was not with VS Code settings. The error was due to a corrupted TEMP path configured in my PC's registry user profile environment settings.
I got this error from Help --> Toggle Developer Tools --> Console
The error was flagged in the console when I opened a new typescript file.
Unable to write file c:\Users\XXX\AppData\Local\Temp;C:\wamp64\bin\php\php5.6.25;C:\vufind-3.1.2\install.php\09cf49d8-af5b-42e9-8194-43f5b566be0f'
Obviously this path was corrupted. After updating the environment variables in registry settings, the VS code IntelliSense started working. Checking the console is a good start to find the root cause of this issue.
Earlier intellisense was working for Angular in VS-Code but for some reason (which I don't know) intellisense stopped working. I had extensions installed i.e. Angular Essentials and Angular Language Service etc. that were responsible for this intellisense and all that.
What I did?
I disabled the extensions, restarted VS Code and enabled them. It was all working fine as before.
If everything in VSCode is working ( No errors in output console, language server is working etc.) and built-in extensions are enabled. Still, if your IntelliSense is not working for normal .js files make sure variables are defined with a type identifier such as var d = new Date() or let d = new Date(). In my case, IntelliSense was not working for d = new Date() (No autocomplete for Date object 'd' APIs in this way) but started working fine when I specified a type before my variable names.
Download and install "Tool for Visual Studio 2019" as the C# extension under hood use the build tools: https://visualstudio.microsoft.com/downloads/
In my case, I had an extension installed (Explorer Exclude) to help me focus and hide certain files that I don't regularly work with within the Explorer.
I so happened to have disabled viewing *.sln, *.csproj and *.vsconfig files and folders, which apparently prevents VSCode from even knowing the file is there in the first place. Disabling these specific rules solved the problem instantly.
Took me ages to figure out... The more you know.
I solved it by uninstalling all SDK's (not sure if this is needed)
and installed 4.7.1 developer pack
win 10, vscode 1.63.2, unity 2020.3.25f1
I fixed this by installing .NET Framework 4.7.1 Developer Pack:
https://dotnet.microsoft.com/en-us/download/dotnet-framework/net471
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.