Visual Studio 2019 not updating/removing a service reference - visual-studio

Visual Studio 2019 is not updating a mex service reference. If I try to remove the service reference, the problem gets worse, and the service reference gets marked with a red cross and it is not possible to go back to the previous state.
The error message includes the error code 0x8007007c.
Restarting the IDE does not solve anything.

A system process misteriously blocked a file inside the service references folder, and Visual Studio doesn't make it clear with its messages.
Restarting the IDE wasn't a solution because the process was independent from the IDE. Rebooting the system (or finding a way to kill the process with the file handle) is the solution. Probably a Visual Studio bug.
Since it took me two hours and there wasn't any post citing this error code 0x8007007c and the correct solution, I came here to post the problem/solution I would like to have read before.

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Visual Studio error on new project creation

Situation.
I have Web developer Express Studio 2008 installed on my system.
Until recent windows update it worked fine, but about 2 weeks ago it start giving me an error every time I attempt to create any new project. Screen shot of an error below:
Express 2008 error
I did try to do windows restore to point before update and it did not worked.
As a next step I installed Visual Studio 2010(same result) and VS 2015 same result but a bit more descriptive error. Screen show below.
VS 2015 error
But there is no clear information on Microsoft MSDN forums about this error or how to fix it.
I did try to do reset(devenv.exe\resetsettings) but so far no luck.
Any idea what is going on and how to fix this?
Right now I can not create ANY new project and some of older projects are not opening as well. There is no system of or any kind of similarity between projects which opens or not.
This is a fairly vague error as the dll in question isn't listed here and 0x8007045a is just the error code for this dll initialization error. As a next step in troubleshooting to find the issue (outside of a windows repair) I'd go ahead and run Process Monitor and watch the file system activity for Visual Studio (once you see devenv.exe show up, right click on it and include just that process.
There's a blog post with some troubleshooting steps here but really though, you need to find which library is the culprit to track down what you'll need to reinstall (likely from a system or shared library side).

Parameter name Type ISession cannot be resolved when debugging in Visual Studio 2015

Started getting a new error when starting a debugging session in VS2015. It's an ASP.NET MCV project that also exposes a WCF service (don't know if that's relevant).
The debugging session takes ages to start up and then I get a message box saying:
Specified argument was out of the range of valid values.
Parameter name: Type ISession cannot be resolved. Interfaces of
abstract classes should be registered first.
After that the debugger works as expected.
If I do the same thing from VS 2013 then it takes a long time to load but I get a message saying:
Loading symbols for WebActivatorEx.dll from:
d:\Code\GitHub\WebActivator\WebActivator\obj\Debug
This is strange because I haven't knowingly installed WebActivator and my D: drive is a DVD that I haven't opened since I got the PC.
Yesterday I installed OpenCover, but it didn't work so I removed it.
Anyone out there who might have an idea of what's going on???
Thanks
I had the same problem in my local workstation while my colleague was able to debug and run his web application fine. The said error message was thrown from visual studio 2015, but application used to launch fine and run. This was happening only in debug mode (either with "Start debugging" - F5 or debug mode of the project). The other side effect was that this problem was not occurring for the very first time after every system restart.
This thread along with the link How do you clear your Visual Studio cache on Windows Vista? and the link https://blogs.msdn.microsoft.com/willy-peter_schaub/2010/09/15/if-you-have-problems-with-tfs-or-visual-studio-flush-the-user-cache-or-not/ pointed me in right direction.
I was finally able to resolve the issue by clearing the contents from the following three directories on my local workstation:
a) <System drive>:\Users\<user id>\AppData\Local\Microsoft\Team Foundation
b) <System drive>:\Users\<user id>\AppData\Local\Microsoft\VisualStudio
c) <System drive>:\Users\<user id>\AppData\Local\Microsoft\VSCommon
The resolution makes me think on the lines of the accepted response provided with the first link above. There Visual Studio and Team Explorer cache might have gone out of sync. Hope this answer helps people facing similar issues.

Visual Studio 2013 Aborting When Opening Property Sheets for Project

I don't know when this started, but I discovered that Visual Studio 2013 Update 5 aborts when attempting to open properties for a project within a solution. It seems to only happen when we have more than one project in the solution.
I've been able to reproduce it in two circumstances:
The first project is C++ and the second project is Fortran. Right-clicking on the first project and selecting Properties crashes Visual Studio without a crash dump or any kind of pop-up notification. Visual Studio just ceases to exist. Right-clicking on the Fortran project brings up the property sheet without any problem.
The second circumstance is with two projects, both C++. In this case, I'm able to open properties successfully for the first project, but not for the second one.
In every case I've tried where there's a one-to-one solution and project, it's working fine. A colleague who's working with VS 2013 Update 4 verified that the crash occurs for him as well.
We don't know when this started, but historically, we've opened these property sheets many, many times. However, it's probably been a few months since I've worked on a mixed-language process, and same with my colleague.
I've turned on logging and there was a complaint in the log about two versions of the Desktop SDK having the same internal ID. I removed one of those altogether, but that didn't seem to affect anything. It's also not clear if that error has any relationship to the crash.
I've also done a repair on Visual Studio, and that did not correct the problem.
I've also tried deleting the .suo and .user files. Again, no luck.
I've done quite a bit of googling but haven't found anything that matches this specific problem.
Any ideas?
Thank you,
Doug

Visual Studio 13 raises unknown error at the startup?

As I start visual studio 13 it raises unknown error by saying "Microsoft Visual Studio 2014 has stop working" without any further explanation.
Here's what I've tried to solve this problem;
I reinstall .Net framework
I repair, uninstall-install Visual Studio
2013
I installed another version of VS13
but still the problem persists. Do you have any further suggestion ?
I am using Windows 8.
I've run into a similar situation described here. Once i find a solution, i will post it there.
As a first attempt i would try to generate a logfile via the /log option and see if there is a problematic extension that you could disable/deinstall, e.g. NuGet.
You say you reinstalled VS2013, so the problem might be related to settings. If reverting all settings is an option for you, see this thread on how to truly really reset your settings. This involves calling your devenv.exe with special parameters (e.g. in a cmd.exe), removing files and tinkering with the registry.
I have found the solution to this or a similar problem if you are starting Visual Studio by loading a solution file.
The symptoms are that a solution that previously could be loaded with no problems, suddenly starts having the unknown error box appear for every project in the solution. Sometimes you can't see the relationship to the continuous reappearance of the error message and the project loading, because you don't have the solution explorer open, so you aren't even aware there is a correlation.
The solution to this is to use task manager to stop visual studio, confirm with visual studio that you wish to shut it down and then look for the .suo file for the solution you are trying to load. In VS2012 it appears in the same directory as the solution file and has the extension solutionname.v11.suo while in VS2015 it appears in a hidden .vs directory under the location where the solution file is found, in a folder named for the solution.
Delete this file and the problem will go away.
The .suo file contains the user preferences for the solution you are trying to load and it is perfectly safe to delete it as it is regenerated when you load the solution.
If you are getting the unknown error when you haven't tried to load any solutions, this is probably not the right answer.

What's the reason for error message? I am using VS 2010 professional edition

What's the reason for error message "The snapshot is out of date and cannot be used anymore because type tree has been updated, A new snapshow needs to be acquired"?
This error appeared right after I launched VS2010 and added username/pwd to connect to TFS repository.
I am using VS 2010 professional edition.
It happened to me with VS2012 as well after loading the project without source control binding, a local simple WinForms project. All I needed to do was Clean & Rebuild. After that the problem was solved.
This is a bug in Visual Studio. According to http://connect.microsoft.com/VisualStudio/feedback/details/742959/the-snapshot-is-out-of-date "We've taken a closer look at this problem and it isn't one that we'll be able to solve in the next release of Visual Studio."
They recommend waiting around until the background language parser service is done (or, in other words, don't try to be too productive there partner.) My experience is that closing all documents, cleaning the solution, rebuilding it and then closing and re-opening with a pause after does remove the error.
Until you do something silly, like edit code. Then all bets are off again as to when it reoccurs.
I had a similar issue with VS2012 and after rebuilding the solution twice, I still saw the same error message.
Following an advice from a post from this site, I closed the Designer tab, reopened it from the Solution Explorer, and the problem was resolved.
I got this error too, but after I unload project and reload project, the problem was resolved.
Simply restarting Visual Studio 2012 was a workaround for me, but it kept happening about every hour and having to restart visual studio that often was very annoying.
I also found this post which suggests that the Productivity Power Tools are the problem and to simply turn off the Automatic Brace Completion in Tools->Options->Productivity Power Tools. Since making this change I haven't seen the error message again :)
I'll note though that I am using Visual Studio 2012 and the OP is using Visual Studio 2010, but the Productivity Power Tools are available for VS 2010 too, so this may still fix the problem in VS 2010.
The same issue persists in VS2013, but no amount of Clean/Rebuild or restarting VS will help. The only way I can do a successful publish, is to disable the AutoT4MVC extension.
I got this error too. I closed Visual Studio 2012 and opened it again and the error was gone.
I got this error when I had conflicting class names / namespaces. I was referencing a UserControl from a different DLL in my XAML file which had the same name as my XAML file (class name). Maybe this helps.
I used Visual Studio 2012, and just faced this error on my Windows 8. It seems like Turning off the VM and restarting Visual Studio fixed the issue.
I just got this with VS2010.
I had a form with a user control (UCa) with a user control (UCa) from a different project on it. Made a change to the UCb then flicked to the designer for the form and boom! Snapshot error.
Resolved by a full clean and then rebuilding just the UCb project before building the rest of the project.
I'm using Visual Studio 2012, and I got this error when starting Visual Studio, letting TFS connect to the server, and THEN opening my solution. The fix was simply closing VS and launching the solution directly.
I'll throw my two cents in here as well.
I've tried every combination of Clean, Rebuild, Restart, etc. What I've found is that restarting Visual Studio usually makes the problem go away for at least one Publish. Here's the weird part, though. You can also fix the problem by doing absolutely nothing. If you just let Visual Studio sit for about a minute or two, and then publish, it will usually work just fine. There's some background voodoo going on here, and waiting for it to finish seems to do the trick.
I have a solution with two parts that need published. One is a WCF service application, and the other is the ASP.NET MVC5 website itself. Anytime I publish the services, and then try to publish the site I'll see this error. I can publish the services, restart VS, and then publish the site, OR I can publish the services, go get a drink, and then publish the site. As long as I give VS a chance to "settle" between any kind of rebuild and the publishing of the site, everything seems to work as expected.
Take a walk, come back, problem solved. OR if you don't have the time. Clean, Rebuild, Restart, Publish (lather, rinse, repeat).

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