I have just updated my developer machine and stupidly updated to Windows 10 and Visual Studio 2015 at the same time. Since updating my MVC4 applications intellisense is saying "The name 'model' does not exist in the current context" along with ViewBag etc. I have searched and tried most of the things people have mentioned about the Web.Config Versions and NuGet etc. I even tried going up in .Net Versions to 4.6 which has made no difference. I have reopened it in Visual Stidio 2013 and the issue has migrated to there as well.
Any ideas where I should be looking? The application runs fine its just the intellisense.
Thanks
Chris
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I started a fresh new ASP.NET Core project targeting .NET Core in Visual Studio 2017 -- final version.
I installed a bunch of NuGet packages for authentication. What does the yellow warning mean? Looks like I only have it for Microsoft.AspNetCore.Authentication and Microsoft.AspNetCore.Authentication.OAuth. The Facebook and Google packages seem OK. Any idea what the issue is?
UPDATE: Closing VS 2017 and reopening it seems to have fixed the issue. I'm seeing quite a few issues like that with VS 2017 where closing and reopening it seems to make problems go away. Am I the only one having this issue? Any suggestions on how to get VS 2017 to behave correctly?
I've created a C++ UWP Windows 10 app using Visual Studio 2015. However, I'm not able to visualize any xaml in the designer because I'm always getting a System.NullReferenceException error. How can I fix this?
That's very odd but I solved following these steps:
Close any instance of Visual Studio
Open Visual studio and create a new C# UWP empty project (name it as you like, do not matter)
Run the "useless" created project then close it as Visual Studio
Open again your previous C++ UWP project
In my case everything started working!
Switching solution platform to x86 worked for me.
I'm experiencing exactly the same problem on my primary development machine but not on another. The reason is... I think... When I installed Visual Studio 2015 on the 2nd machine, the first time I created a Universal Solution (C#) I was shown a dialog asking me to OK "elevated permissions" (custom permissions) for the VS2015 installation folder. I OK'd it and Designer works on that machine in both Blend2015 and VS2015 (community edition)
On the other machine I was never shown the dialog asking me to confirm elevated permissions and Designer does NOT work on that machine (VS2015 Enterprise). This machine also has VS2013 update 5) on it.
I am thinking that I might have to completely wipe off VS2015 and try to clean the registry of all VS2105 references AND remove the VS2015 installation directories on C:\ AND when I reinstall, create a installation directory with a different name (if I can). What a PAIN though... I'm waiting to see if MS delivers a simple solution since I'm quite positive that this whole issue boils down to a bug (feature... grrr) having to do with custom permissions that can't be changed (or added) after installation.
Would be nice is MS would confirm this...
(please note, none of this involved c++... it was all C#)
Tom
this is the dialog I was shown on the machine where Designer works]1
Installing the Windows Software Development Kit (SDK) for Windows 10 solved the issue for me. It may ask to unistall the previous version of Windows 10 RTM SDK
https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk
This is fixed in Update 1 of Visual Studio 2015
https://www.microsoft.com/en-us/download/details.aspx?id=49989
So I have a program I've been making in VB for my company through Visual Studio 2013 Express for Desktop and have not worked on it in a couple of months. When I try to open it, I get the following error:
"The VB project "WindowsApplication1" is targeting ".NETFramework,Version=4.5" which is not installed on this machine."
http://imageshack.com/a/img661/6001/DGAfuk.png
I have all of the .NET frameworks installed including all developer and service packs (even language packs). I uninstalled all .NET frameworks and re-installed each of them without any resolution.
I tried to re-install Visual Studio and even tried changing the Framework (one of the options I have) but I cannot view any code or open designer view if I do so. (http://imageshack.com/a/img633/2109/OJaXbr.png)
The strange thing is this computer is the same one I have been developing this application on for months, so I'm not sure what happened over the last 60 days since I launched it.
Does anyone have any clues as to how I can resolve this issue?
Thanks in advance,
Matt
The path to your project must be Les then 256 Character.
That can be the reason of it.
Make sure the path is short "Copy the project to your c drive "C:\ProjectFolder" and try again".
I have already using Visual Studio 2010 for my project. Now I have to work with a Visual Basic 2006 legacy application. Can I install VB 2006 Enterprise Edition on my system?
Will this affect Visual Studio 2010?
Yes. Visual Studio 2010 and Visual Studio 6 will happily install side-by-side.
You can run multiple versions of Visual Studio on the same machine. I currently have VS2003, VS2005, VS2008 and VS2010 installed and am using all of them.
Where you may get into problems is with something like hooking up the older ones to TFS. This can be done, as I have VS2003 and VS2008 connected to TFS2010, but my VS2005 won't work as it whinges about the provider for some reason.
Another area to watch out for is IIS. As you have already installed VS2010, IIS may be defaulting to .Net 4.0 so if you start deploying .Net 2.0 apps then the websites may not work without some adjustment of things like app pools.
But if you are just using them independently of each other then you should be fine. If you're really paranoid, consider creating a VM and installing the old VS on it.
EDIT
I see from your edited post that you were talking about VB6. This also can be installed alongside any of the later versions of Visual Studio.
We are using MVVM Light Toolkit (from Galasoft - Laurent Bugnion).
Until now we were using Visual Studio 2010.
Everything was working well (thanks to Laurent).
Two days ago we moved to Visual Studio 2012.
And now Intellisense is no longer working in Xaml files (but still working in code-behind).
After looking on forums and made some tests, it appears that we have an issue with "GalaSoft.MvvmLight.Extras.SL5.dll".
As soon as GalaSoft.MvvmLight.Extras.SL5.dll is removed from project references, intellisense is working again.
Someone already had same problem and/or know a solution ?
Thanks.
Alain.
We had a similar problem when we migrated from Silverlight 4 to 5. We were using a local copy of GalaSoft.MvvmLight.Extras.SL5.dll copied from another computer.
Once we installed the MvvmLight .msi package and changed the reference in our Silverlight project to C:\Program Files (x86)\[...]\GalaSoft.MvvmLight.Extras.SL5.dll, IntelliSense started working again.
Hope this helps