Looked through some similar questions, could not find one that fits my case.
I have a solution that I created some time ago in VS 2010 (maybe originally in MVC2), and eventually upgraded to MVC4.
The solution works properly when opened with VS 2010, builds and runs - everything as expected.
To confirm that I use MVC4, I checked the properties of my System.Web.Mvc.dll. It appears to be 4.0.0.0
From this I assume that I have MVC4 successfully installed on the machine.
However, when I try to open the solution with VS 2012 I get the following infamous error
Full text:
Unsupported This version of Visual Studio does not have the following
project types installed or does not support them. You can still open
these projects in the version of Visual Studio in which they were
originally created.
- Recipes, "C:\ ... Copy\Recipes\Recipes.csproj"
I can also create a new MVC4 project using VS 2012, so I'm assuming I don't lack any tools VS 2012 needs.
What else could be the problem?
There's probably an entry in the <ProjectTypeGuids> element of the .csproj file that VS2012 doesn't recognize. I have a vague recollection there was some tooling identifier change but I can't recall specifically.
My suggestion would be to create a new project from scratch and then compare the <ProjectTypeGuids> elements in each .csproj file to try to figure out which one from the VS2010 project it doesn't like in VS2012. It's likely going to require some trial-and-error tweaking of the list so make a backup of the file first so you don't get yourself into a situation where you can't open it at all.
If you don't want to take that approach another option would be to create a new empty project and then import the individual files from the old project into the new, but that could obviously be quite time-consuming if it's a large project.
In order to use the latest version of resharper on the much-maligend (by me) project I'm currently maintaining, I copied all the source to a separate folder and opened the project in VS 2010.
It converted successfully, so said the conversion report (after informing me it seemed to be under version control but would be unbound since it was missing needed info for that, which I accepted). Yet, although the conversion was nominally successful, in the Solution explorer, beneath the project name, it says "Project Unloaded"
Now for the nitty-gritty: The project has two related solutions, a "regular" (.exe) and a library (.dll) project; they both display in Solution Explorer, but both say "Project Unloaded."
Now for the strange part: When I realized that I had not even copied over the files from the .dll project, I started over and created two separate folders for them (as they have in the development setup), and copied each one's file into each folder.
But now, when I attempt to open the .exe project (the one which had previously claimed it had been converted successfully) from this new location, by selecting File | Open Project and selecting the .sln file, I get, "\.csdproj' cannot be opened because its project type (.csdproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.*
The dev environment is VS2003 in a XP Mode virtual machine; I'm trying to open the projects now in VS2010 in Windows 7.
Is there a way I can get this project to open and compile in VS2010, so that I can resharperize it (and carry over some of those fixes, albeit manually, one at a time) to the "real live" version of the project?
The best way would be to create a new project in Visual Studio 2010, like you've done. That will create the project folder and any necessary settings.
Next, copy files from your old project to this new folder. As you copy a file into the new folder, also "Drag-N-Drop" that file into your Visual Studio Solution.
The Visual Studio conversion wizard is good from going from the last version to the next version up, but going from VS2003 to VS2010 could be too big of a jump for it.
If I had to guess, this conversion is bombing because your old project targets the .NET Framework 1.0 and VS2010 doesn't do 1.0.
You will likely have to rebuild your project and fix numerous little bugs due to changes in the Framework, but none should be major.
I am new to web development, and have been having a considerable amount of trouble trying to get my asp.net project running using Visual Studio 2010. Please help.
I am working on a web development project that references a database using SQL 2008 R2. I was having problems with turning on/off features on my computer, the asp.net and .net features, etc. I would get an error that read "An error has occurred. Not all of the features were successfully changed." I tried several solutions to fix this, and none worked. I ended up using a cleanup tool I found online, it said use as a last resort, which is where I was at.
Here is the link:
http://cid-27e6a35d1a492af7.skydrive.live.com/self.aspx/Blog_Tools/dotnetfx_cleanup_tool.zip
This ended up fixing my problems with the features, but then I was not able to use Visual Studio 2010. I got an error "Cannot create the window". To fix this I ended up reinstalling Visual Studio 2010. Now I am again running into the problem where I cannot turn on the asp.net and .net features with the same error as before.
Now that is not my only problem, I cannot open my project solution file. It is giving me 2 errors when i open the .sln file "The selected file is a solution file, but was created by a newer version of the application and cannot be opened." and "The system cannot find the file specified." in that order. The .sln file says it is an unrecognized version.
I have previously worked on this project using Visual Studio 2010, before I tried to fix the problems with the features. I can still open other .sln files that I worked on before, but they do not reference outside sources. I have tried opening the .sln file in notepad and changing the version from 12.00 to 11.00 (on line 1) and changing #Visual Studio 2012 to #Visual Studio 2010 (on line 2). I need to work on this project as soon as possible. Any help would be great.
Will someone help me identify the problem?
How can this problem be fixed?
You don't necessarily have to use an existing solution. A solution file just references a bunch of projects and groups them together.
I would suggest you create a new blank solution and then add all of your existing projects into that one, assuming you don't have a similar issue with adding in the projects as well.
I was getting the below message from Visual Studio 2010.
"This project is incompatible with the current version of Visual Studio"
One situation resulting in this error has already been posted here at Stackoverflow, but that question has been closed. I'm thinking it's a fairly generic problem. Since I have found a "solution", I'll post this question, and my solution as an answer.
If the message
This project is incompatible with the current version of Visual Studio
is due to an attempt to open a project targeting .Net 4.5, then the "solution" or workaround is to edit the .csproj file and change the TargetFrameworkVersion from "v4.5" to "v4.0". That at least allows the project to be loaded, although it may result in compiler errors if the program is dependent on 4.5 features.
VS 2012 has different project type support based on what you install at setup time and which edition you have. Certain options are available, e.g. web development tools, database development tools, etc. So if you're trying to open a web project but the web development tools weren't installed, it complains with this message.
This can happen if you create the project on another machine and try to open it on a new one. I figured it out trying to open an MVC project after I accidentally uninstalled the web tools.
I just got the same error message with a couple projects after installing Visual Studio 2015 Update 3. For me, the solution was to install .NET Core
In my case it was an incompatible Project Type. Editing project file and removing ProjectTypeGuids node resolved the issue of loading the project (I had already re-targeted the framework version as advised here).
Probably the project type is not supported in the (most likely) NEW version of VS, so you will have to adjust (update) the code to work properly (if possible), but at least you can see the content through VS.
I Resolved the issue by deleting the files in the below folder
%localappdata%\Microsoft\VisualStudio\12.0\ComponentModelCache
Source: https://forums.xamarin.com/discussion/70388/how-to-fix-incompatible-issue-after-visual-studio-2015-update-3
As for me, I realized there was another web project in the solution that my VS2017 was loading fine, so I copied over the ProjectTypeGuids element of it over to the project that wasn't loading. Its diff was:
- <ProjectTypeGuids>{E3E379DF-F4C6-4180-9B81-6769533ABE47};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
+ <ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
After this, it loads. Don't ask me why.
If you are getting the same error for a project which is actually an extension (.vsix), installing Microsoft Visual Studio 2012 SDK does the trick.
Go to tools -> Extensions and updates -> Online -> Search for project installer -> download
And relaunch Visual studio.
After installing Update 3 for Visual Studio 2015, I suddenly got the "This project is incompatible with the current version of Visual Studio" error message while opening my Cordova project (.jsproj Javascript project file)
To solve this:
Go to Programs & Features
Select the Microsoft Visual Studio 2015 installation and click Change
Click Modify
Install "HTML/Javascript (Apache Cordova) Update 10" of the Cross Platform Mobile Development section
For me, I got this same error in VS 2015 and just installed the VS 2015 update 1, though from another answer, VS is actually up to Update 3, now (after which, they got the error and had to install .NET Core). Had issues when it hit certain packages, like the Windows SDK ones, and had to point the installer back at the paths in my original CD, and for some, even that didn't work and had to skip them and re-download from an internet-connected computer, transfer them over, and run them later manually (computer was not connected to the internet to be able to download updated versions of the packages), but after doing all that and doing a reboot, the error was gone and my project loaded fine.
I had this issue and after hours of uninstalling and reinstalling I found out the issue in my instance.
The reason why I got this was down to the fact that I didn't have the correct extension.
In my case the ASP.net project (my startup) was the incompatible project and this was because I didn't have the following:
Microsoft ASP.NET and Web Tools
Micrsoft ASP.NET Web Frameworks and Tools
It was a simple case of going into extensions and updates under the Tools menu
I had this error and found it was due to the presence an 'Import' XML tag inside the .csproj.user file. Once I removed it, Visual Studio could open the project again.
What most people forget it is that the files of visual studio are just text files, that have some peculiars configurations that will show to the program how to open it. that is, we can change this because it's just a text in some file in there in your project folders.
Well, knowing this, what we have to do is very simple!
The first step is knowing what kind of project it is this project that stay unload. (for example: Class Library)
The Second step is create a new one (Class Library) because you know that your visual studio will create a version supported by himself. Unload this one and click in "Edit csproj".
It's in this file that we can found the configuration that tell to VS how this proj will be loaded and his name is ProjectGuid, this serial number has a variation according the type and version of project.
Now, look at your "ok project", copy the "ProjectGuid" TAG, paste on csproj that unloaded, and pay attention to the little differences and make this files almost equals, except for the tags ItemGroup that represent the references of the project.
Doing that, save all files and close your VS and open again, now your project should load normally.
I hope that this informations help somebody to understand a bit more how the VS works and help solve the problems when necessary.
I checked if i could create a new solution and was unable because SSAS,SSIS and SSRS weren't there as options.
I downloaded SSDT from here and installed and it worked...
https://learn.microsoft.com/en-us/sql/ssdt/download-sql-server-data-tools-ssdt?view=sql-server-2017
In case you came here looking for the issue with ".smproj" file, it is because you are missing SQL Server Analysis Services(SSAS). To over come this, install SQL Server Data Tools(SSDT) in your system, restart your Visual Studio and it will work.
Thanks.
This is my answer, I think it's useful. Please follow below steps:
1.First check your Visual studio version is 2012, 2015 or 2017 etc.
2.Your project is developed in 2015, but your visual studio 2012, then visual studio 2012 should not open the which are developed in visual studio 2015 projects.
3.If developed project visual studio 2012 and you have visual studio 2012, open the project but here need to check one option as per below
a) Target Framework - Open your project ".csproj" file with notepad++ and search with "TargetFrameworkVersion" and observe target framework value.
b) Open any existing project in your visual studio - Select project at 'Solution Explorer' - Right click - Properties - Application -Select Target Framework - Observe highest your framework which you have
c) 3.a and 3.b frameworks both are should same otherwise applications are not open
d)If your target framework less than the project framework should install the latest's
e) above options do not work just Simply have another option modify the "TargetFrameworkVersion" value in '.csproj' file which is have in your visual studio.
Ex: in my visual studio target framework 4.0 but in '.csproj' file have TargetFrameworkVersion - 4.5, You need just change 4.5 to 4.0 and open the project
This issue might be caused when using VS 2015 with Update 3 installed on one PC and without update 3 installed on another. This was the problem in my case.
I'm working on my first project in Visual Studio and I haven't used Windows much since '05, so please bear with me.
I've got my project open in Visual Studio 2008, and I'm trying to open a particular file for editing, but I get an error that says
"c:\path\to\file
Cannot open file.
I've verified that the file exists, and I can open it from Windows Explorer, but nothing from inside Visual Studio, any ideas?
I'm not familiar with Visual Studio, so my terminology might be incorrect.
The file appears in the tree in the Visual Studio Explorer pane, so I double clicked it, and got the error. The error said nothing more than the file path: Cannot open file.
How can I check permissions/ACLs in Windows? I assumed that since I could open it in Windows Explorer, I would be able to open it in Visual Studio.
And it's a .cpp file.
You may want to right-click on the file in the tree, and delete it from the project.
Then, add back an existing item.
Hopefully that will fix the problem.
Though I'm not familiar with this specifically, if you just want to move forward, I'd recommend creating a new project type and just adding all the existing files to it. Should be quicker and easier than diagnosing what could be many issues.
Other things to check: encoding type of the project file, permissions/ACLs (can you open that actual file from an unelevated VS prompt, for instance), etc.
Additionnaly to the other answers, I found out that this problem may arrise if the target .Net framework version specified in the project file isn't installed.
This seems to prevent visual studio from opening all the files contained in the project, and showing the "Unable to open file " message.
Correcting the version (in the csproj file or in the settings), saving and reloading the project fixes the problem.
I had same problem, my project were build on (.Net 4.5), which I uninstalled on my PC and replaced by (.Net 4.8), so just replacing project's target framework to the one which is installed "in my case (.Net 4.8)" should fix it.