I am trying to open a project developed in vs2008 but i am getting the following error.
"cannot be opened because its project type .csproj is not supported by this version of the application".
And I tried by selecting open with-> visual studio version selector but it opens as a vs2010 project and gives the same error.
When I got this msg, it was because I was opening a "non native" project format. Like e. g. MVC. You would have to install that project-type-extension (if that is the correct name? the one that gives you the project template) for VS2010 as well. I think it even needs to be same version.. like MVC2 again instead of MVC3.
Similar with XNA.
Thanks to all of you for your kind help.
I was working on a project and it was in vs 2010, same time i tried to open another project for reference which was in vs 2008, even i opened in new instance it was unable to open that.
At end I closed all the VS instances and opened vs 2008 project first, then it asked for version specification.
Did'nt able to rectify the error but got the solution.
"First close all the opened instances and then open the older one".
Just try to open the solution file in an text editor and change the
# Visual Studio 2008
to
# Visual Studio 2010
Does it help?
PS: Here are the differences between VS 2008 and VS 2010 sln and csproj files listed:
http://blogs.msdn.com/b/rextang/archive/2009/07/06/9819189.aspx
You can try to port manually. Just make a backup before you do.
Related
When I create a Xamarin.Forms application using Visual Studio Community 2015 Community on Windows 8.1 it shows me this error on load:
A problem was encountered creating the sub project 'App1.WinPhone'. This project requires a Visual Studio update to load. Right-click on the project and choose 'Download Update'
I've installed all updates available and trying on a newly installed Windows.
Note: I had this error in Forms.
How can I fix this error?
Note: There isn't a Download Update option in Solution Explorer.
Navigate to where you saved the project files that you created in Visual Studio. Default location is C:\Users\PSDan\Documents\Visual Studio 2015\Projects.
Open the project folder that you are experiencing problems with and navigate to C:\Users\PSDan\Documents\Visual Studio 2015\Projects\test\test\test.Windows folder. Inside this folder is a file called test.Windows.csproj.
Right click on that file and open with... using Visual Studio, by doing this it should detect the missing package and in my case automatically prompted to install the missing package.
I've been seeing similar errors for .Window or .WindowPhone and what I've observed is that it is due to missing SDK. Same might be the case with you.
Do you see App1.Droid appearing in the solution? (I guess NO)
Go to file explorer and locate App1.Droid.csproj (..\App1\App1.Droid\App1.Droid.csproj) and open this in a new instance. There it will pop up "Install Missing Feature" dialog and you can follow the steps to install missing components.
If your issue is the same as here:
Project required a Visual Studio update
then you may try and see if this solution works:
[Cause is] a mismatch of the target framework version and profile in the .csproj file. Despite the target framework being correct in the project Properties, they were not being correctly saved for whatever reason. Thus, when trying to install a utility library from nuGet, it left my project in the state you described.
The solution was to go by this site:
Framework Profiles in .NET
and find the correct combination, then manually edit the .csproj file to adjust <TargetFrameworkProfile> and <TargetFrameworkVersion>.
Installing Visual Studio Update 3 with selected features "Windows 8.1 and Windows Phone 8.0/8.1" and "Cross Platform Mobile Development" solved the problem for me.
Uninstall Xamarin completely, and reinstall it. That happened to me as well. I would uninstall Visual studio too. Install that first, then install Xamarin.
Edit: I know this sucks to do, but it was what the Xamarin team had me do to resolve it. As far as I know this is the official fix as of last week.
I've created a game for an assignment in Visual Studio 2012 and the university I'm at uses 2010 and it won't open! It mentions something about NET Framework 4.5. How can I convert my project so it will open in 2010?
It takes three step:
Step 1
Open solution file (.sln) in a text editor and change
Microsoft Visual Studio Solution File, Format Version 12.00
to
Microsoft Visual Studio Solution File, Format Version 11.00
Step 2
Open application configuration file (App.config) in a text editor and change
sku=".NETFramework,Version=v4.5"
to
sku=".NETFramework,Version=v4.0"
Step 3
Open project file (for C# language .csproj) in a text editor and change
<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
to
<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
Now enjoy your project in VS 2010 !
You may only need to open the project in Visual Studio 2012, and go to the project's properties page.
On the Application tab, locate the Target Framework setting, and change it to .Net Framework 4.
After that, you should be able to open it in Visual Studio 2010.
Also see Converting VS2012 Solution to VS2010, but so far I haven't had to do any conversions on VS2012-created projects to open them ins VS2010 - but YMMV.
[EDIT]
I just tested this again (to be sure) by creating a .Net 4.5 project in VS2012, and verified that I couldn't open it in VS2010. Then I opened it in VS2012 again and changed the framework version to .Net 4.0. After that I could open it in VS2010.
Note that I didn't have to make any other changes. However, this is on a computer with VS2010 and VS2012 installed, so it's possible that installing VS2012 might do something with VS2010 to make it work...
I have done this at work
Open .sln file with notepad
Change the two lines below
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2012
To
Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio 2010
and hey presto the solution now opens in VS2010
You can create a new project in Visual Studio 2010 and then right click in the solution explorer > Add > Existing item. To pull through all of files in your 2012 project.
Either create a new solution in VS2010 and add all existing files from your VS2012 or compare the .sln file to a .sln file freshly created with VS2010. At the top you'll see some version information that should be changed. Also compare the .csproj files and change any version information accordingly and the target framework.
Missing library or framework could also cause this problem. For example, if you want to open a MVC4 or Silver Light project but you don't have these libraries installed at your PC.
Open .sln file and Change Format Version to 12.0 to 11.0
I have project files created with MVC3, C#, VSE 2010 web developer.
Just installed the latest VSE 2010 web developer.
When I try to open .sln file I got the following message:
D:\Work\tech_descr\Site\Site.csproj : error : The project file 'D:\Work\tech_descr\Site\Site.csproj' cannot be opened.
The project type is not supported by this installation.
I checked proposed solutions from forum, but it doesn't work. Looks like my versions of software are fine.
here are strings from csproj:
<ProjectGuid>{9F99CE4B-6664-401C-AEFD-DD53C3281B42}</ProjectGuid>
<ProjectTypeGuids>{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
Dont double click .sln file to open solution,open it form File->Open menu from VSE 2010 it will prompt you to convert
I would start by reinstalling MVC 3.
As an interesting note, those guids are, respectively:
Visual C#
Windows (C#)
Web Application
http://msdn.microsoft.com/en-us/library/hb23x61k%28v=vs.80%29.aspx
http://www.mztools.com/articles/2008/mz2008017.aspx
A while ago I created a Visual Studio Package/Add-In for Visual Studio 2010 (for those curious: http://visualstudiogallery.msdn.microsoft.com/ea23f9a7-a942-45b2-87e6-5df6ff0444ff). If I try to download that and install it in Visual Studio 2012, it doesn't work, I get a version error.
So my first thought was to see what happens if I try to port it to 2012. I downloaded and installed the VS2012 RC SDK, and basically recreated the whole thing in a separate solution and it all works. What I noticed was that many of the assemblies I had to reference (Microsoft.VisualStudio.*) were now version 11 as opposed to version 10 (for obvious reasons). After copying and pasting all the code over, I got it to work correctly in Visual Studio 2012.
My question now is this: Is it possible to have one .vsix file for multiple versions of Visual Studio (I'm guessing no.) If not, what's the correct approach to take as far as uploading the different versions? Can I upload two versions of a .vsix? Will the Add-In manager in visual studio pick the correct one automatically? Do I need to create a new package e.g. "Visual Pastie 2012"? Just looking for some guidance.
Rename the VSIX package to give it a ZIP extension and open it up. You'll find a file called extension.vsixmanifest. Inside this XML file you'll find an element called SupportedProducts which should look like the following to work in VS2012.
<SupportedProducts>
<VisualStudio Version="11.0">
<Edition>Pro</Edition>
</VisualStudio>
</SupportedProducts>
HTH
I am trying to open this project in VS 2010. However, it fails, and I am unable to open the project. Why could this be happening?
The project is XNA.
Here is an error message:
The project file 'ShipDemo.csproj'
cannot be opened. The project type is
not supported by this installation.
XNA Game Studio is built upon Visual Studio 2008. They have not updated it to work with VS 2010 at this point.
In order to use XNA, you still need to work in VS 2008.