I'm trying to compile a project I have in Visual Studio 2010. It has built fine on 2 other computers with Visual Studio, but on this computer, it will not compile, and returns:
"The property could not be read/written because the language service returned an unknown error"
Obviously, I have tried googling, and nothing of any use came up, so some help would be great.
Additional Information:
Project is an XNA 4.0 Project
Trying to deploy the solution to a Windows phone. The phone is plugged in, unlocked, etc. and other projects will deploy successfully to it.
I've run into the exact same error message when I tried editing the AssemblyInfo.cs using VS 2010's Assembly Information dialog from within the project properties (open Properties -> Application from below the given project).
As this thread suggests, I deleted the AssemblyInfo.cs file and filled in the values I wanted in the dialog box which created a new and working AssemblyInfo.cs. Maybe this would help/would have helped in your scenario as well.
Note, that you'll get a fresh and valid GUID if you simply click save after opening the dialog.
I encountered this today in VS 2017. It went away as soon as I performed a build which fetched all my references.
Related
I just download visual studio community to my pc. When i opened the vs-2015 and create new Console application project. i can't find it any where under the c# we installed templates or any templates.
Thinking about to uninstall and install again but this not the first time i uninstall and install this, i did installed and uninstall few time but still can't find the web Console Application template.
Thank you.
I had the same problem and found the solution on another site. Here are the steps that need to be performed:
Open a Visual Studio command window with admin privileges. This can be done from Windows search after clicking on the Windows button (or Start button - depending on the OS) located in the lower left corner. Make sure that you don't have any Visual Studio project open before proceeding.
Type in prompt in the search box and select "Developer Command Prompt". Right click on this and select run with admin privileges.
In the command window Enter:
cd C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE
In the command window then enter:
devenv /installvstemplates
This worked for me and I was able to create a new console project after this.
With my version of VS 2015 community edition, upon install there was a Console Application (Package) template available, which I mistakenly thought was a Console Application template. This is not the case. It is a web console application project and I only discovered this after trying to access the File and Directory classes in System.IO from my code. The compiler kept on complaining:
Error CS0234 The type or namespace name 'Directory' does not exist in the namespace 'System.IO' (are you missing an assembly reference?)
MyProject.DNX Core 5.0 ...
It still complained after putting in a reference to System.IO and even after changing the offending line of code to:
string DataPath = System.IO.Directory.GetCurrentDirectory();
A big clue here is the reference to DNX Core 5.0, which is an optimized run-time for ASP apps. It was at that point that I discovered that the Console Application (Package) template was also listed under the New Project window Templates / Visual C# / Web.
So, For others that may happen to find this post and think you are using a standard Console Application template, but have errors like "CS0234 The type or namespace "name" does not exist in the namespace..." then you could be using a Console Application (Package) template - which is probably not what you want and should be replaced by a regular Console Application. If you don't see it in the New Project window under Templates / Visual C#, then you should follow the steps above to install it.
EDIT
This is what my New Project window looks like after I performed the steps above:
Comparing this window with yours above, it appears to be somewhat different. Notice that "New Project" on my window is centered and for yours it is not. Also, at the bottom of the window yours has only Name, Location and Solution name, while my window adds a fourth item called Solution.
So, first thing, try clicking on Visual C# located in the left pane of your New Project window to see the templates available. Post that snapshot here. This can be done by selecting edit.
If you still don't see the Console Application template, then perhaps you downloaded a different version of Visual Studio 2015 than I did. So, here is the screen that pops up after selecting Help / About Microsoft Visual Studio on my system:
Compare this screen with yours and post a snapshot of your screen here. Also, what operating system are you using?
Thanks again Bob for your time to explained it to me, i am really appreciate that, I uninstalled and installed again from this link enter link description here, On my machine i have Visual Studio 2015(this one works) and Blend for Visual Studio 2015 is still missing template but i don't care it anymore if it work or not because i will use the one that works which is the Visual Studio 2015.
I'm trying to open a TFS Build Process Template (DefaultTemplate.11.1.xaml) file, incorporating an activity from Community TFS Build Extensions. I'm following instractions from here, section Get the custom activities into Visual Studio. I had no problems with that back in the RC version of Visual Studio 2012 but now, after upgrading to the release version, an attempt to open the file ends up in an error:
System.Xaml.XamlException: 'The type ‘InArgument(mtbwa:BuildSettings)’ of property ‘BuildSettings’ could not be resolved.'
TFS itself doesn't seem to have any problems running builds based on this template.
I am able to open the file without the trick, but then of course the custom activities are not displayed properly.
Check this out:
http://blogs.blackmarble.co.uk/blogs/rfennell/post/2012/08/30/Type-InArgument(mtbwaBuildSettings)-of-property-BuildSettings-errors-in-TFS-2012-RTM-builds.aspx
Quote:
"if the Visual Studio class library project you were using to manage the process template editing was targeting .NET 4.5, it needed to be 4.0. Well with Visual Studio 2012 RTM this is no longer the case, in fact it is the other way around."
I don't really think this is a great answer but I don't have enough rep to comment...
Build action on the xaml file is set to None?
I had a similar issue when opening build templates in VS 2012 RTM, but I was able to open the xaml "a little," meaning that I could open it in the workflow designer, but a lot of it was just the error activity. I found some errors to the effect that I should add references which I had not needed before (neither in VS 2010 or VS 11), such as PresentationCore and PresentationFramework. I wish I remembered more detail to pass on to you on this point.
I'm trying to launch a project created by someone else in my local environment. I'm currently using the following products:
Visual Studio 2010 Ultimate version 10.0.40219.1 SP1 Rel
MVC 2
Windows 7 Ultimate
But when I double click on the .sln file I get the following error:
C:\Users...\Desktop\ContactManager\ContactManager\ContactManager.csproj : error : The project file 'C:\Users...\Desktop\ContactManager\ContactManager\ContactManager.csproj' cannot be opened.
The project type is not supported by this installation.
Please help me load my project. :)
Thank you,
Aaron
Turns out that I just needed to install MVC version 3. I guess the project that I was trying to open is using MVC3 and my machine only had 2 as you can see in my environment list above. I'm glad I was able to fix this BUT give me a better error message for crying out loud. Sheesh. ;)
Aaron
I've come across this before. In my case, I had installed Microsoft SQL Server and, more importantly, BIDS. Whenever I would open a project that was created in VS2008, the VS version selector would identify this as a 2008 project and BIDS would try to open it (and this error would occur). What I did as a work-around is I would right-click on the .sln file and use the "Open With" to select VS2010. If that also works for you, you can change your defaults for what opens .sln files.
Another way to test this is to open VS2010 and then use the "Open Solution" menu option to open your solution. If this method works, you know the issue is the default program that is opening your .sln files.
In my case project needs to have MVC3 so at first i checked i have MVC3 template in Visual Studio 2010 (service pack 1 installed). I downloaded MVC3 installer frowm following link:
https://www.microsoft.com/en-pk/download/details.aspx?id=4211
After installing my issue get resolved.
Visual Studio 2008 has been very stable for months on my computer.
This morning when I double-click on any .xaml file to open it, or even click on the tab of an already opened .xaml file, Visual Studio says "initializing toolbar" in the status bar and then 20 seconds later fully closes the whole application without any error message.
Other files (e.g. .cs class files) I can open fine.
Has anyone experience this or know what I could check/change to be able to use Visual Studio to edit .xaml files again?
MORE INFO: I can also create a new project and create and edit .xaml files fine.
MORE INFO: I can edit .xaml files in other modules (projects) fine.
MORE INFO: Everytime it crashes, this event is registered:
.NET Runtime version 2.0.50727.3053 - Fatal Error in executable module (72555E00) (80131506).
(odd since I have .NET framework 3.5 installed)
MORE INFO: It is only in one module (project) that .xaml files cause Visual Studio to crash. Even creating a new UserControl in that module crashes Visual Studio.
I get this occasionally (with .xaml and .resx files) and find that if I delete the solutions .suo file things work fine again.
[The suo file just contains per user settings like recently opened files etc so it's nothing important and will just be recreated when you next open the solution.]
I've been getting the same issue whenever I try to access project settings for a C# project.
Found additional information about this:
Here: http://blog.fryhard.com/archive/2008/11/26/visual-studio-2008-closes-at-build-outlook-2007-add-in.aspx
And here: http://social.msdn.microsoft.com/Forums/en-US/vsto/thread/99e124d0-c5d7-49c0-b1dd-71328f9a6571/
Apparently it's a bug in the core CLR engine that causes the entire CLR to crash if certain types of assemblies are loaded in a certain order.
Most of the time it appears to be directly related to the Visual Studio add-in called PowerCommands - uninstalling PowerCommands will make the problem go away.
And (we hope) it's supposed to be fixed for .Net 4.
This sounds very similar to the issue I had when I first installed VS 2008. Unfortunately, after hours of research, I ended up reinstalling the IDE (with my fingers crossed). No problems since then, but it's obviously not the most enjoyable way to solve the problem.
What is likely happening here is that one of the controls referenced directly on indirectly in your designer is stack overflowing during the designer process. Because the designer is hosted in process a stack overflow by one of the components will take down the designer and VS.
Try attaching a debugger to VS, break on first chance StackOverflow Exceptions and open the designer.
Firstly I'm completely aware of this message and why it happens normally. It's not that I'm just trying to run a dll (like this question).
I have a project that compiles to a dll but has a startup program specified in the project properties. Most of the time I'm able to right-click on the project and select Debug > Start new instance, and it will run the program and let me debug my dll. However, occasionally I get this message (A project with output type of class library cannot be started directly) as if I haven't got a startup program. The first few times I thought it was just me accidentally clicking on the wrong project but I'm certain this isn't the case given that it's happened so many times and I've been careful to watch it.
When this message appears I'm able to try it again and it always works on the second or third attempt.
A colleague using the same Solution never has this problem :-/
Anyone else had this problem or know how to solve it?
I'm using Visual Studio 2005 Pro Version 8.0.50727.762 (SP.050727-7600)
Edit: Also happens with Visual Studio 2010
Another colleague suggested it's because after clicking Debug > Start new instance, while I'm waiting for it to start up, I click on a different project. I don't do it for any reason, just randomly selecting things as I wait for the project to start up. Maybe Visual Studio looks at the selected project sometime after I clicked the menu, gets confused, and shows the error message?
Anyone able to confirm this matches their experience?
Typically problems in VS are caused by:
Add-ins: Run VS without and see if the problems is solved
Corrupted files in your solution: Delete / rename all files created by Visual Studio which are not part of your project, i.e. all .suo, .ncb files and a like.
I had this problem with projects that were created as "Windows Control Library" that somehow forget their status. Unloading and reloading the project usually did the trick.
If it was created as a "Class Library" then to make it a "Windows Control Library" I manually add the following to the .csproj file. It was the only difference I could see between a class library and windows control library project.
BTW - starting a Windows Control Library starts the User Control Test Container - allows you to test any user control in the library. Very cool.
<Service Include="{94E38DFF-614B-4cbd-B67C-F211BB35CE8B}" />
add that inside of an <itemgroup> element.
If you plan to use/create/add extra dll's or just have more than one project in your solution, you may get this kind of problem, especially if you forgot a simple rule:
1. In your "Solution Explorer" window. Right click and chose "Set StartUp Projects..."
2. Under "Start Up Project" select and change "Single startup project" to your working entity.
no just make a start up project
Going to resurrect this thread, I have just been experiencing similar issues, when right clicking a project and start new instance..
So instead of right clicking the project and selecting start new instance, I right clicked and clicked set as startup project.
Low and behold a class library project was set to bold, certainly not the one I was right clicking.
I tried selecting a different executable project and setting that as the startup project. Same class library was highlighted as the start up project.
Realised that the current open file was from that project, possibly all the open files were from that project...
closed all open files and tried again.... Problem solved, behaviour as expected for both set as start up project and start new instance options...
Definitely a bug, hope this helps others..
Microsoft Visual Studio 2010 Version 10.0.40219.1 SP1Rel
Microsoft .NET Framework Version 4.0.30319 SP1Rel
This sounds like a transient Visual Studio problem. Reinstallation or upgrade may solve your problem.
I've seen this as well, and it seems like a bug in VS. It happens after you right-click/build a class library (that requires rebuilding), and then right-click/debug > start new instance.
edit- It's still very intermittent, I can't seem reproduce it reliably
I've found that I've had the Startup Project on the Solution set to Current selection, then at some point, I've unloaded a project, and the solution has reverted to Single startup project on a project that happens to be a class library.