Visual Studio 2010 Unknown Error on Startup - visual-studio-2010

I'm trying to launch Visual Studio 2010 from my desktop and I just get this error box popping up saying "Unknown Error"...
Anyone have an idea why this might happen?

I just fixed it, I uninstalled and reinstalled my version of the .NET Framework (v4.0). And then when I again tried to launch Visual studio it started up without any issue.

Here's some things you can check:
Temporary de-activate all Addins
Temporary disable all Extensions
Check the Event Log for any errors
Reset your settings
Start with /ResetSkipPkgs
Based on your comment below, if you can't find the DevEnv.exe when you have opened a VIsual Studio Command prompt, I would suggest you to re-install Visual Studio as it indicates your installation (paths) are in a bad state.
And here are some other things you migh want to check:
VS 2010 Crashes on Startup with "Unknown Error"
Visual Studio 2010 quit working...now gives me an "unknown error" dialogue when launched
Visual Studio 2010 Startup Errors
Visual Studio 2010 crashes on startup after installing SP1

Open Visual Studio Command Prompt with Administrator permission and type the following,
devenv /ResetSkipPkgs

the Solution of this problem ist very simple.
Install VS 2010 on a other machine and export HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\10.0 to a file. Copy the file to your target machine and rename the path above to ".old", then double click your exported reg-file and wait a time....
After this my Visual Studio was starting correctly.
The other solution, that people post wont work in my case.
I hope this will help some body.
Enjoy
Sven

I had the same problem.. Instead of completely uninstalling .net framework, I just repaired the .net framework from the repair/uninstall option available in Control Panel of my Windows 7 Ultimate pc. Finally I got another error that, Visual Studio could not create AppData folder in my system. Then, I right click the Visual Studio icon and selected Run as Administrator. This worked for me!! Now, Visual Studio 2010 is working on my pc!! Try this out if you want..

Related

Visual Studio Remote Debugger Failed to Start

I recently installed Visual Studio 2017 on my laptop (running Windows 10). I have a C++ project using the OpenCV and Eigen libraries, and it seems to compile correctly, but when I try to run the Local Windows Debugger, I get an error message that says:
Visual Studio Remote Debugger (MSVSMON.EXE) failed to start. If this problem persists, please repair your Visual Studio installation via 'Add or Remove Programs' in Control Panel
I ran the Repair tool it suggested, with no luck. I also checked for a solution online, and came across a support page (Link). I tried turning off my anti-virus and firewall as per the suggestions on the support page, but that didn't get rid of the error message. My laptop is brand new, and I just installed Visual Studio and the Remote Debugger, so I don't think it would be the case that the version of the Remote Debugger doesn't match with that of Visual Studio. All of the other suggestions are for people doing remote debugging, but I'm doing a local debug.
Any help/suggestions on resolving this issue would be appreciated.
Firstly close the Visual Studio.
Goto AppData\Local\Microsoft\VisualStudio and select version (Ex: VS 2015 has 14.0 folder).
Then delete ComponentModelCache folder.
Start the Visual Studio.
Find what's preventing msvsmon.exe from running.
I encountered this error in Visual Studio 2019 while trying to start debugging a .net 5 console application. I tried to run C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\IDE\Remote Debugger\x64\msvsmon.exe and found that User Access Control dialog opens and is asking to run it as an administrator. So two solutions were possible for me, either run VS2019 as Administrator or remove the Run this program as an administrator setting for msvsmon.exe.

Visual Studio takes ages creating a project

I have problem with my Visual studio 2013. When I'm trying to create even a simple console application,VS hangs and after a while the message 'Visual studio is busy: Microsoft Visual studio is waiting for internal operation to complete.' shows up.
I have reinstalled Visual Studio but without any luck. I've used ProcMon to check devenv and all the paths it shows, have to do with Android Studio.
I 'solved' the problem by accident. I disabled Source Control and for some reason, VS started working again. I know it's not an ideal solution but works just fine when you need VS urgently.
Don't know if Visual Studio is one of those programs. Someone correct me if I'm wrong, but I believe even after uninstalling, Visual Studio keeps some files in the registry from your previous installation and the AppData folder. You might want to clear those.
Close Visual Studio (if you haven’t already).
Open the registry editor (regedit.exe)
Delete the
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio{version}
Delete the
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio{version}_Config
Delete the %USERNAME%\AppData\Local\Microsoft\VisualStudio{version}
directory.
Use {version}=10.0 for Visual Studio 2010
Use {version}=11.0 for Visual Studio 2012
Use {version}=12.0 for Visual Studio 2013
Hope this helps

Always Sign-In into Visual Studio

I usually use Visual Studio 2008, but every time I start Visual Studio 2013 I get a notification that tells me an error occurred and I have to sign in again. Is this the normal behavior or is it really an error?
It is annoying. How can I fix this?
Thanks
This is an error I've had before when not running Visual Studio in Administrator mode, try running it in Administrator mode. Also, do ensure your Visual Studio is up to date.

Error message "No exports were found that match the constraint contract name"

This morning I faced a problem while opening my Visual Studio solution, and when I tried to run it, it said:
No exports were found that match the constraint contract name
How can I fix this problem?
I solved this problem by clearing Visual Studio Component Model Cache.
Just delete or rename this folder:
%LocalAppData%\Microsoft\VisualStudio\11.0\ComponentModelCache
or
%LocalAppData%\Microsoft\VPDExpress\11.0\ComponentModelCache
and restart Visual Studio.
The version of Visual Studio you have is specified by the number e.g.
Visual Studio 2012 is 11.0 (as shown above)
Visual Studio 2013 is 12.0
Visual Studio 2015 is 14.0
Visual Studio 2017 is 15.0
Visual Studio 2019 is 16.0
For those that don't know:
%LocalAppData%\ is the same as C:\Users\{yourUsername}\AppData\Local
For those who have multiple versions of Visual Studio installed, e.g. 2012 and 2013, it might help to remove the ComponentModelCache for both versions before restarting Visual Studio, e.g. 11.0 and 12.0.
No need to rename or delete the whole folder:
(%AppData%\..\Local\Microsoft\VisualStudio\11.0\ComponentModelCache)
Just rename or delete the Microsoft.VisualStudio.Default.cache file inside the above location.
Visual Studio Express 2012 has different paths.
Visual Studio Express
...\Users\{user}\AppData\Local\Microsoft\WDExpress\11.0\ComponentModelCache
With Visual Studio Express 2012 for Web
...\Users\{user}\AppData\Local\Microsoft\VWDExpress\11.0\ComponentModelCache
I did not have to re-install Visual Studio Express
This will really work like a champ:
Solution: Try to delete ComponentModelCache folder from the below location.
[C:]\Users\[your user name]\AppData\Local\Microsoft\VisualStudio\[Visual Studio version number]
And after successful delete, recreate the folder with the same name, "ComponentModelCache".
This issue can be resolved by deleting or clearing all the folders and files from %AppData%\..\Local\Microsoft\VisualStudio\11.0\ComponentModelCache
This actually clears the Visual Studio component model cache.
On Windows 7 machines, the path is different. When you type %appdata% in Run dialog, it opens the folder C:\Users\<username>\AppData\Roaming.
Click the 'up' button to navigate to the parent folder and select the folder 'Local'.
Final path: C:\Users\<username>\AppData\Local\Microsoft\VisualStudio\11.0\ComponentModelCache
Deleting the Component Model Cache did not work for me (well, the relative directory given above did not exist in my machine). Instead, I installed an extension to Visual Studio 2012 Express. Menu Tools → Extensions and Updates... → Online → Choose any and then download. This apparently invalidates the cache causing Visual Studio to rebuild it.
Here's my source.
For Visual Studio 2013 you need to remove that folder from this path:
%AppData%\..\Local\Microsoft\VisualStudio\12.0
for Visual Studio 2012 and later versions, the solution must be deleting the content of the folder ComponentModelCache:
C:\Users\[username]\AppData\Local\Microsoft\WDExpress\11.0\ComponentModelCache
Visual Studio 2013
C:\Users\[username]\AppData\Local\Microsoft\VisualStudio\12.0\ComponentModelCache
I had the same problem upon launching Visual Studio 2013 Ultimate, and the solutions here didn't work for me. I tried deleting the mentioned folders and starting Visual Studio again, but it didn't work.
However I had other problems too, like Microsoft.visual studio package did not load correctly and also Page '312e8a59-2712-48a1-863e-0ef4e67961fc' not found VS 2012. The latter refers to a message in the Team Explorer window saying "Page 'somenumber' cannot be found".
So I run devenv /setup on the Visual Studio command prompt with administrative rights. It did the job, and everything is fine now.
Remove ComponentModelCache folder content.
%AppData%..\Local\Microsoft\VisualStudio\11.0\ComponentModelCache
Clearing the folders didn't work for me. So I went to 'Programs and Features' and used the change button to startup the Visual Studio 2013 setup.
In the setup I choose the repair function and that fixed the problem for me.
I had the same problem with Visual Studio Express 2013 of Windows 8.1.
Unfortunatly there was no "ComponentModelCache" folder in
%AppData%..\Local\Microsoft\VisualStudio\12.0\ComponentModelCache.
I found the "ComponentModelCache" folder in
..\Users[username]\AppData\Local\Microsoft\WDExpress\12.0
and solved this problem by removing this folder from there.
If you have VS 2013, you have to go to: %LOCALAPPDATA%\Microsoft\VisualStudio\12.0
then rename the ComponentModelCache folder.
I experienced a similar problem after some updates released from Microsoft (part of them where about .NET framework 4.5).
On the Internet I got the following link to the Microsoft knowledge base article:
Update for Microsoft Visual Studio 2012 (KB2781514)
It worked for me.
This happened to me with Visual Studio 2013 Web, after Windows installed several updates. Unfortunately none of the suggestions in this thread helped.
I had to re-run the installer and select the "Repair" option. After that (and a reboot) it was working once again.
In some cases you may have to repair more than one version of Visual Studio. One example is when a Script Task control in VS 2013 opens VS 2012 when you click Edit Script.
Renaming the ComponentModelCache folder worked for me in Visual Studio 2015, but with a slightly different path:
%AppData%\..\Local\Microsoft\VisualStudio\14.0\ComponentModelCache
I have Windows 7 x64 with a second partition on which Windows 8 (preview installed). While working with Microsoft Visual Studio Express 2012 for Windows Phone, I come up with the same problem. But the ComponentModelCache is found here:
C:\Users\Jayaram\AppData\Local\Microsoft\VPDExpress\11.0
I am unable to delete or rename as I get the "access is denied" message when I try to use command prompt:
Administrator: VS2012 X64 CrossToolsCommandPrompt
This issue is because of a MEF cache corruption.
Installing the feedback extension (or installing any extension) will invalidate the cache causing VS to rebuild it.
click for source.
i experienced this problem in Microsoft Visual Studio Express 2012 for windows phone while trying to open file.
Then i browsed to
C:\Users\MyUserName\AppData\Local\Microsoft\VPDExpress\11.0\ComponentModelCache
And Inside ComponentModelCache i deleted Microsoft.VisualStudio.Default.cache CACHE file. Finaly i restarted visual studio and reopened my project.
Then my problem was solved, i was able to open file.
Note: My OS is windows 8. And i installed SDK 8 for developing windows phone app
Thanks
I am using Visual Studio 2012. After installing the Visual Studio 2013 web express, when I want to run or open any project in Visual Studio 2012 it shows me the following error:
"no exports were found that match the constraint contract name".
I also tried the above solution for clearing the ComponentModelCache,
but I did not find the folder. I solves my problem just by: Repair Visual Studio 2012
For the Express versions of the software, the folder you need is in a slightly different place(s): For Express 2012 for Web it is C:\Users\XXXXXXXX\AppData\Local\Microsoft\VWDExpress - not in the Visual Studio folder.
I got an error with the same error message - two years later.
It's a different problem this time though, related to .NET Core dnx things.
I couldn't find an answer on Stack Overflow, but there's a GitHub issue that contains a workaround: https://github.com/aspnet/Home/issues/1455
Below is the most important part of the workaround:
Delete the entire C:\Program Files (x86)\Microsoft Visual Studio
14.0\Common7\IDE\Extensions\Microsoft\Web Tools\DNX directory. (As far as I understand, it belongs to the old version of ASP.NET Core
RC1, which for some reason is still shipped even with Visual Studio 2015 Update-3).
Delete the C:\Users\<user>\AppData\Local\Microsoft\VisualStudio\14.0\devenv.exe.config file.
Run the Developer Command Prompt for Visual Studio 2015 as Administrator, and execute the devenv /setup command. The new devenv.exe.config file is generated. This time there are many assemblies that refer to the
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\DotNet directory.
Run the Visual Studio 2015 and check that it shows the Microsoft .NET Core Tools (Preview 2) 14.1.20624.0 in the Help => About Microsoft Visual Studio menu.
Thanks to olegburov's post on GitHub for figuring this out.
I had to uninstall some external components like Postsharp and Apex and then it worked. I also tried the chosen solution but it gave me more errors.
Deleting the folders haven't worked for me i have go control panel and repaired
Visual Studio Installer Projects extensions for VS 2013.
And it worked for me
I got this error after reinstalling IntelliJ IDEA and ReSharper for C# in Visual Studio 2013.
First, I got an error problem with extensions, and after this I got this error:
"No exports were found that match the constraint contract name”
I simply removed folder ComponentModelCache and resolved this error.
My 2 cents:
Following all above lifesaving tips, I had a slightly different experience; mine is VS 2017 Community Edition, installed once, and I notice that have all these 3 folders:
%LocalAppData%\Microsoft\VisualStudio\15.0 ==> Empty
%LocalAppData%\Microsoft\VisualStudio\7f0c75b0 ==> has only the CoreCon folder
This is the one that has the ComponentModelCache:
%LocalAppData%\Microsoft\VisualStudio\15.0_7f0c75b0
Deleting only the Microsoft.VisualStudio.Default.cache had no effect.
So, I deleted all 4 files there: .cache, .err, .external and catalogs.
On restarting VS, problem gone and appeared a 5th file:
Microsoft.VisualStudio.Default.scan
Removing ComponentModelCache did not work for me. Reinstalling VS 2019 did thanks to a recommendation on this Microsoft support thread.
Details
This seems to be a known bug with a fix incoming from MS (as of 1/7/2020)
Experienced after upgrading from VS2019 Pro 16.2 (i think it was?) to 16.4.2 using Visual Studio Installer
Error displayed when trying to launch both nuget console and nuget package manager

Visual Studio freezes or hangs on startup

I have been using Visual Studio for a while and found that when I open visual studio and open the project all the files that were open last time remain open.
This causes my Visual Studio to freeze or crash on startup.
I am using a lot of plugins in my installation and wonder if there is a way to prevent this from happening.
Have you tried resetting user settings? It did help me:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\devenv.exe /ResetUserData
Run: Devenv /ResetSkipPkgs
http://msdn.microsoft.com/en-us/library/ms241276%28VS.80%29.aspx
or
You are probably looking for the /SafeMode command line switch:
devenv.exe /SafeMode
This will start Visual Studio with all add-ins disabled.
You can change your Visual Studio 2010 start up settings.
Tools --> Options --> Startup --> At startup --> Show empty environment --> Save
Visual Studio has a plugins limit. Use only plugins that best for you. There is a list for best Visual Studio 2010 plugins for developers.
Visual Studio 2010 - recommended extensions
devenv.exe /ResetSettings
or
devenv.exe /ResetSetting
Worked fine for me
I had the same issue with Community 2015 version. I solved it with Vidas Vasiliauskas suggestion, which was to erase user settings.
The thing is that I previously had enterprise 2015 version, in which I was logged in with my Microsoft account. When trying to open community version, it tried to do so with that same account, which I believe was the cause of the issue.
Therefore, I would suggest to those with the same problem to run the following command at Command Line Prompt:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\devenv.exe /ResetUserData
In my case, VS 2013 Professional was hanging on startup because the license was no longer valid.
Last item in the log file:
<entry>
<record>367</record>
<time>2015/07/13 20:11:05.051</time>
<type>Information</type>
<source>UserConnection</source>
<description>myemailaddrs#gmail.com signed in for IDE user</description>
</entry>
And on the msdn.microsoft.com subscription page: "Your subscription is no longer active, contact your administrator."
I had to get an updated subscription from my employer.
When it hangs on the splash screen:
It could be that an anti-virus solution is blocking Visual Studio.
Kaspersky Internet Security 16.0.1.445 makes Visual Studio 2015 hang on the splash screen. The older version 16.0.0.614 works fine.
Clear the tag's elements in C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config
Also do the same with C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\machine.config
The tag should just be <runtime/>
If your Visual Studio 2019 is stuck due to a faulty extensions, here is a way to get it back to normal.
First, start Visual Studio in safe mode (devenv.exe /SafeMode) and uninstall the troublemaker.
Hereafter, if Visual Studio 2019 is still unresponsive, you need to do the following:
Browse to %LOCALAPPDATA% and go to Microsoft -> VisualStudio -> 16.0_bb6da863 (or whatever version you have installed)
Delete the following folders (all cache related):
ComponentModelCache
ImageLibrary
MFECacheBackup
Extensions\*.cache
For reference:
Hope it helps you and safe a VS repair/reinstall.
Happy coding :-)
I was having this issue when using the Git source-control plugin.
I ran devenv.exe /SafeMode
And then in Options -> Source Control -> Plug-in Selection made sure "None" or "Visual Studio Team Foundation Server" was selected. After that, VS started normally.
Check Task Manager. I had a Setup.exe running (not sure what it was installing), but once I killed it, VS unfroze.
I have got recently VS2017 stucked on start up . so I did this and worked for me :
1 - start cmd as admin : run the following:
cd "C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\Common7\IDE"
devenv.exe /SafeMode
2- once VS is started , go to
Tools => Extentions and Updates :
then uninstall all plug-ins that installed recently ( notice the installed date ) and unnecessary ones)
This helped me: I deleted all SDK, JDK & JRE folders that had been rooted in VS settings before. After that I used devenv.exe /ResetUserData and devenv.exe /ResetSettings.
Worked for me on Visual Studio 2015.
This is becuase of rendering IDE UI try this hope it will resolve
1- Open "Visual Studio"
2- Select "Options" from the top menu
3- Navigate to "Environment => General"
4- Unchecked "Optimize rendering for screens with different pixel densities"
5- Restart visual studio

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