When I open a C++ project created recently on Visual Studio 2015 I am able to debug it and have it run, but the code window is blank. I've clicked all around and can not find anything to show me the code so I can continue to work on it.
I have tried:
F7: View Code does not work.
Opening from the Solution Explorer window does not do anything.
Searching Google, Stack Exchange, and YouTube tutorials for my identical problem.
I suspect it is a very straightforward misunderstanding of the interface on my part, but wanted to get involved on Stack Exchange to figure it out.
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Fixed with the following for me.
Change 'Color Theme' to something other that what you have.
Tools -> Options -> Environment -> Color theme:
Select OK then exit Visual Studio.
Open project and should see your source.
Please clear Visual Studio Cache, then open the Visual Studio again.
You can find cache folder on follwing path
C:\Users\<your_username>\AppData\Local\Microsoft\VisualStudio\<VS_version>\ComponentModelCache
Note : Close Visual Studio, and stop all Visual Studio processes.
Related
Visual Studio Intellisense is bugging out and only works on my current startup project.
I'm in the process of building a multi-project solution and as of earlier today Visual Studio decided that Intellisense would stop colour coding and providing information about code that I hover over with my mouse.
this is happening in all files within the solution apart from the single one in my current Startup Project.
I'm unsure whether the fact that that file is inside the startup project is important or not or what at all caused the bug to begin the first place.
I've been searching around for a while and tried just about every 'solution' that has come up.
I've changed the relevant settings off and on again.
I've deleted the dynamic .suo file in the hidden .vs folder.
I've reopened the files, visual studio, updated, made sure intellisense wasn't doing something in the background.
Apparently this bug can be caused by a corrupt .ncb file that lives in the solution directories, but I've failed to locate a file with that extension anywhere.
I'm also not using any extensions or such that mess with Intellisense's operation.
Are there any other possible things to try (hopefully not reinstalling) or just continue writing code in black and white?
Intellisense working:
Intellisense not working:
Maybe you can check your intellisense setting in Tools > Options > Text Editor > C/C++:
This is a document about intellisense in C++. Hope it can help you.
If it doesn't work you can try to Reset all setting in Tools > Import and export settings. Or try to repair visual studio in visual studio installer.
If the above methods don't work, maybe you can only try to reinstalle visual studio.
I have been using Vs 2017 for several months on dev machine. This fine morning says setup incomplete. Am I missing something?
In this case you need to go to Control Panel => Programs and Features and choose Visual Studio and update it.
VS 2017 (15.6.6) was fine for me on Friday 6/1/18 on Windows 10, but same issue as OP today after a restart.
As suggested by the dialog and Retired Ninja, I ran the Visual Studio Installer (to 15.7.3 after updating VS Installer) and that fixed it.
Note that the 15.7.3 update was a 7.73 GB download. Your download size may vary.
This has happened to me for the last 3 upgrades in Visual Studio Enterprise 2017 (now again on upgrade to 15.9.21).
The fastest fix (and I'm not sure why) is simple and doesn't bomb your settings or take for ever.
In the Visual Studio Installer, click on Modify.
Click "Modify" on the bottom right corner.
Yes it says "Total space required 0 KB".
Yes you didn't really change anything.
It will then act like it is downloading something. (not sure what)
It will then act like it is installing something. (again, not sure what)
Open Visual Studio 2017 and it works.
Hope this helps.
If you have an offline installation like me and can't simply re-run the Visual Studio Installer you can edit devenv.isolation.ini and change the last line to read SetupFinished=true. It will detect your trickery and complain, but at least it will launch again.
Edit: I ended up getting the Visual Studio Installer to fix the issue after choosing the "Download then Install" option. Maybe I was too impatient when I initially stopped the update? My above answer is useful when you need to get work done that isn't affected by the broken features, but you will likely encounter problems later on.
just had the same problem (without any reason with) vs 2019 prof, after googling and reading on that topic, just went to vsix, looked for some individual component to install/uninstall, randomly picked cloud explorer, uninstalled it and some dependent components and VS 2019 prof started normally
decided to leave this here. may be it helps somebody
Solved: I did following steps, run the visual studio and it works for me.
In my case visual studio was working fine , I just restarted the PC, this popup was keep coming when I try to open visual studio.(in my case I was using VS 2019)
Go to this path "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\IDE"
Open devenv.isolation.ini, set SetupFinished=true and save.
Now open visual studio.
Cheers!
In my case did following steps:
Clear temp files (you can %temp% in run command and Shift+Delete files)
Restart your computer
Open visual studio it will work properly.
Update: Faced problem again after couple of days, This time I go to C:\Program Files (x86)\Microsoft Visual Studio\Installer.
Click on retry.
Select one more feature which I had already installed on my Visual Studio
Click on modified and after installation it worked again.
This happened to me after I canceled a plugin update.
I solved by going to this site that has the latest update of Visual Studio.
https://learn.microsoft.com/en-us/visualstudio/releasenotes/vs2017-relnotes
I downloaded and upgraded it.
After that, Visual Studio worked.
If your VS is already upgraded, there´s an option to "repair" on the installer.
For this problem, goto uninstall screen in control panel right-click visual studio and select option change, Installer page will open now, In that window without changing anything click modify. it will solve the problem. I'm using VS Professional 2017
I got the same error today morning. This is what I did:
I ran the visual studio installer then I clicked on Modify.
The installer was showing 0KB Required. I continued and then it downloaded and installed. (Not sure what).
After that installation, it was able to launch.
I hope it works for you as well.
I was using Vs 2019 professional 16.6 and happened to me this issue one morning. I modified the installation by adding Azure Development tools even though I was not using it. This fixed the issue.
I just updated to 15.9.24 and I got this yet again, as I have my resolution above, and Visual Studio 2019 seems to be a lot better with avoid this issue. The installer for 2019 you do have to change something and do the modification, 2017 you don't have to change anything.
I reported this issue through Developer Community:
Setup not complete since 15.9.21
I don't know why but sometimes its buggy
it's up to date but after launch visual studio this error prompted !
you have to click modify in vs installer and just modify it.
its not going to download anything.
after a moment launch vs and enjoy :)
For VS2022, WIN11:
Control Panel > Programs > Programs and Features > Microsoft Visual Studio Installer
Then, click on Change and resume the previous process.
I have this C++ project I am trying to debug in Visual Studio (Community) 2015. The build is always successful, but after that debugging never starts. All that shows up is the Windows loading icon, which just never goes away. Any ideas about what might be wrong?
The problem was that Avast was interfering with my Visual Studio Projects. I used the instructions at https://forum.avast.com/index.php?topic=139935.0 to get it to work.
Basically you need to exclude your VS projects from Avast's scan.
... but simply turning off DeepScreen in Avast 2014 is not enough. I
make multiple apps in Visual STudio 2012, and I can tell you that even
with Deep Screen off, Avast will still pop right up and destroy the
compiling process by saying the .exe is a virus (the crazy "evo-gen
[susp]"). The only way I can get Avast to stop doing that is to
manually enter-in exclusion directories for every directory where I
create apps! ...or make an exclusion for some high-level folder.
Try resetting your settings by going here
Tools >> Import and Export Settings Wizard >> Reset all settings
I had similar problems for Visual Studio 2015 Update 1 on Windows 10.
For me, the only solution, which helped is to install this package:
https://www.microsoft.com/en-us/download/confirmation.aspx?id=49029
"FIX: Devenv.com process freezes after you execute devenv.com /build command in Visual Studio 2015 " https://support.microsoft.com/en-us/kb/3092422
I've noticed that the auto complete feature in Visual Studio no longer works properly once my project has reached a certain size (in my case ~4,100 lines of code). I've also noticed that performance also degrades once the number of third-party libraries increases (namespaces and class attributes and methods are no longer visible).
Is there a way of manually updating the auto completion database or create a new one for an existing project?
I am currently working under Visual Studio 2008, but I have experienced this issue in Visual Studio 2010 as well.
For VS2015, 2017 and VS2019 close Visual Studio and delete the .vs folder in the same folder as the solution. It contains among other things the intellisense database (it should be possible to delete only the files specific to intellisense, if we knew which ones). Note that if you delete the whole folder you will lose your window layout configurations etc.
For previous versions, close Visual Studio and navigate to your project folder. The *.sdf file there contains the intellisense database- if you delete this files and reopen your project in visual studio, it rebuilds the cache.
Deleting the sdf file solved the problem for me.
Sometimes working with a big solution (mainly C++ projects) becomes
unbearably slow. To fix it you need to close the solution and go
delete the .SDF file. After that it returns to normal again, for about
a week, or so until you need to do it again.
The underlying cause is that the SDF file gets fragmented and,
according to xperf profiling I've done, VS will sometimes do 20,000+
random reads from it when changing between debug and release. Putting
the SDF files on an SSD fixes the problem but should not be necessary.
VS needs to use the SDF file more efficiently and not do blocking SDF
operations, ever.
Source: https://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/2255455-fix-the-delete-sdf-file-problem
In Visual Studio 2022, open Tools -> Options -> [type in "database" in the search box] -> Text Editor -> C/C++ -> Advanced -> Recreate Database = TRUE, and then reopen the solution.
In VS2017 I often run into this situation when I use interop to call CPP from C#, when something is changing on the CPP side.. e.g. constructor arguments.
Unload and reload the CPP project in the solution helps to solve the red lines..
I am using Visual Studio 2019 and have also been experiencing problems with Intellisense along with other features. I would be able to get through about 2 or 3 updates to a file before Intellisense stopped working along with code formatting.
The only way I was able to get things working again was to restart Visual Studio, I tried removing both the intellisense folder and the whole .vs folder but this didn't solve the problem, it helped but something else was going on.
I was finally able to fix this by turning off the Track changes option under
Tools->Options->Text Editor->General.
Right click on the solution and press "Rescan Solution".
It seemed to work for me.
For Visual Studio 2017 (and I think Visual Studio 2019 also), close Visual Studio, go into the .vs folder in your projects folder and delete all the contents apart from the .suo file, then reopen Visual Studio.
This way you can rebuild the Intellisense cache without losing your preferences.
After verifying daniol's results of Mar 15, I went into the .vs folder -> {MyProject} folder -> DesignTimeBuild folder and deleted the .dbtcache file and Intellisense now works "intelligently" with no loss of Window Layout or other .suo info. I suspect that the 'Diagnostics.DTBBLog' command offered by eq_ on Jan 4 did the same thing but that command seems no longer available, at least by that name.
For Visual Studio 2017 (and mainly using C# projects), the following has always worked for me:
Open a Command Window (View/Other Windows/Command Window) [Ctrl+W,A]
Enter the command "Diagnostics.DTBBLog" and press enter
No need to close solution and reload etc.
It was devastating to find out that for Visual Studio 2019 this command is removed...
UPDATE1: I have reinstalled Visual Studio and I am still having this problem. My guess is there is a problem with my environment.
Update2: Diving in.
I attached windbg to devenv and set a breakpoint in windbg for msenv!_tailMerge_WINMM_dll and traced through.
This is trying to load winmm.dll using the LoadLibrary API. I can see that LoadLibrary is failing and GetLastError is returning 5 which is "access denied".
now, why would vs be denied access to winmm.dll?
---Begin Original---
I am currently having a serious issue with Visual Studio 2005 SP1 Intellisense in C++. I have an all native solution with on project. Whenever I, or the editor, attempt to invoke intellisense auto-complete pow, Visual Studio crashes. I even tried this with a brand new console app. Ctrl + Space in the empty main and Visual Studio crashes.
I googled for help on this but to no avail. I have tried deleting the ncb file but no luck on that front either.
I am currently working with Intellisense turned off as shown in this article:
Visual Studio 2005 - 'Updating IntelliSense' hang-up
And I have no crashes, but it sure would be nice to have intellisense back
Call stack from a crash dump.
7c812a6b kernel32!RaiseException+0x53
502717a6 msenv!__delayLoadHelper2+0x139
50675186 msenv!_tailMerge_WINMM_dll+0xd
505ac3c3 msenv!CTextViewIntellisenseHost::UpdateCompletionStatus+0x1a7
505acb50 msenv!CEditView::UpdateCompletionStatus+0x30
505dcfad msenv!CEditView::CViewInterfaceWrapper::UpdateCompletionStatus+0x2a
02ae47fc vcpkg!CCompletionList::DoCompletion+0x444
02ade2ce vcpkg!CAutoComplete::PostProcess+0x240
02ade07f vcpkg!CAutoComplete::OnACParseDone+0x3e
02adac2d vcpkg!CMemberListWorkItem::OnCompleted+0x9d
029eb4e3 vcpkg!CWorkItem::ProcessPendingWorkItemCompletedCalls+0x117
029f8b4f vcpkg!CParserManager::OnIdle+0x183
0299961a vcpkg!CVCPackage::OnIdle+0x48
5014b288 msenv!ATL::CComAggObject<CTextBuffer>::QueryInterface+0x43
5a9d2394 VCProject!ATL::CComPtr<IOleInPlaceFrame>::~CComPtr<IOleInPlaceFrame>+0x24
5a9d2880 VCProject!ATL::CComObject<CVCArchy>::Release+0x10
774fd420 ole32!CRetailMalloc_GetSize+0x21
5009422b msenv!CMsoCMHandler::FContinueIdle+0x23
5009422b msenv!CMsoCMHandler::FContinueIdle+0x23
I would try the following set of steps to try and fix the problem
Reset All Settings: Tools -> Import / Export Settings -> Reset All Settings
Delete HKCU:\Software\Micosoft\VisualStudio\9.0 and then restart VS
Repair the VS installation through Add Remove Programs
Disable all 3rd party plugins
Did you try repairing the Visual C++ installation?
Do you have any plugins installed? Try disabling them.
It might be worth it to delete the .ncb file in the project directory, in case it was corrupted (.ncb is the intellisense database file).
If you're doing C++ development for a living (or at least doing serious development), there's no reason not to use Visual Assist.
What a bizarre problem.
I finally figured it out using procmon from sysinternals:
http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
My sounds were somehow changed to windows default sounds after a recent trip to IT. This caused visual studio to play a clicking sound when intellisense happens. In order to play this sound winmm.dll must be loaded up, which is located c:\windows\system32\winmm.dll.
I suppose through debugging foray winmm.dll symbols were downloaded to a FOLDER called C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\winmm.dll. Of course this folder looked mighty tasty to Visual Studio, so when it tried to load the winmm.dll folder as a dll file POW!!!
I deleted the folder, and some other .dll folders :) and all is well.
Thanks for your help.
Make sure you are up on your service packs, I think VS 2005 is at SP1.
Try "cleaning" the solution, i.e. delete (rename) all temporary files like *.ncb, *.suo etc that have been created by Visual Studio. One of these files might have got corrupted (Your problem sounds like the IntelliSense database is broken).