My Issue
I am using Visual Studio Professional 2022 version 17.2.5 and I have a Blazor Server project, targeting .NET 6, where the Hot Reload feature is giving me a headache. This feature works fine in other projects of mine, built entirely the same way.
Problem Description
The Hot Reload feature seems to work only when it comes to c# code-behind. However, in my .razor files, the hot reload does not work. When I make a simple change of text, and hit save, I notice at the bottom of Visual Studio the message:
No code changes were found.
And thus, no Hot Reload. This is not an issue in the other projects of mine, when I make the same changes on them I get the message:
Item(s) SavedCode changes were applied successfully.
And Hot Reload works as intended.
I want to point out, I expect it to function like it does in my other projects by just clicking save or hitting the Hot Reload button. I don't want to have to use dotnet watch --project run and then have to wait for it to recompile every single time.
Settings and what I have tried
I have gone into Tools > Options > Debugging > .NET / C++ Hot Reload and made sure all of those settings were checked.
I have compared the launchSettings.json files of both projects, they look the same.
I have compared the Program.cs files of both projects. Nothing stood out to me that would seem like the cause.
Like I mentioned above, I have tried the dotnet watch run approach and this works. It say's Hot Reload enabled, but for any minor changes to take effect the project gets recompiled - I do not want this.
I have been researching my issue over the passed couple weeks but keep coming up empty handed. Most of the answers on SO seem to be either targeted towards Blazor WASM or they are dealing with issues prior to Hot Reload working out of the box in .NET 6. Though maybe I have missed something.
Edit
I have tried running the project with and without the debugger, no difference.
With the suggestion from Scott Perry, I have tried closing VS and deleting the .vs, bin, and obj folders and then reloading my project. Still nothing.
So, does anyone have any idea what could have gone wrong with this project? Any insight on what I should look into?
Thanks
Since you said your problem seems to be project-specific, have you tried closing Visual Studio, deleting the .vs, bin, and obj folders, then reloading the project? That may help clean the build environment.
I finally got to the bottom of it.
In my .csproj file I had the code below:
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<UseRazorSourceGenerator>false</UseRazorSourceGenerator>
</PropertyGroup>
I'm not sure why I had the <UseRazorSourceGenerator> line in there to begin with... but setting the value to true like in the updated code below solved my Hot Reload issue.
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<UseRazorSourceGenerator>true</UseRazorSourceGenerator>
</PropertyGroup>
I am working on two different solutions, say, Solution1 and Solution2. As these two solutions are dependent upon each other, I have to open two separate Visual Studio while developing.
It is really difficult to switch between these Visual Studio. I can't merge these two solutions into one as Solution1 is being used by other projects and all are part of Source Control.
Just wondering, can I open both solutions in the same Visual Studio IDE? I searched a lot but no luck. Any suggestions on existing VS AddIn or how to develop it would also be helpful.
Visual Studio version - 2012 Ultimate
Source Control - TFS
Create a third Solution C than includes project from both A and B: you can keep C as a local file i.e. you don't check it in version control if this can disturb the team.
Else you can open two instances of Visual Studio and switch at need: VS is smart enough to sense file system changes, but you have to be careful in saving before switching.
Does it have to be within the same IDE instance?
You could right click the VS icon in the task bar, select "Visual Studio 20__", and you will have two seperate instances of VS. You can then open separate solutions in both, without merging the two under one solution.
This will eat up far more resources, however. The previous responses are preferable.
What you are asking is impossible and extremely dysfunctional.
The supported solution would be to add all of the projects from Solution B to Solution A. Then you can open a single solution with all of your work. If you want compartmentalisation within your solution you can use solution folders.
If you can you should have a separate solution for the core components and package them as a nuget package. Both of your other solutions can then take a dependency on that single shared package.
open the solution 1 and right click and add the second solution. When you close the VS next time it will told you once to save the sln file. Do it for saving the settings in sln file.
Now everytime you will open sln1 will show you both project. It will not affect if you only move first project to pen drive or move to another computer. In case of 2nd project missing it will told you that 2nd project not found no more worries.
In case of Source Control - TFS I can't confirm how it work but their is some sollution for github (Which maybe hint anything for TFS).
The same trick can be applied but you don't need to push modified sln so this will not break anyone else's settings. If TFS store the files and code on the file system that you currently working then you can applied same trick to do applied this trick to that TFS project which is stored in your file system.
1.open solution1 in visual studio 2012 .
2.Right click on solution1 ,add existing project option.
3.select the solution2 .
4.Now solution1 and solution2 file are same project.
I'm working with Visual Studio 2010 Professional and use git with Git Extensions as a version control system. When I checkout a branch that involves different versions of the files which I'm working on, VS2010 prompt me with a message that says: "this file has been modified outside of the source editor. Do you want to reload it?" I click yes to all, and get the right version of the files. Until here everything goes as expected.
The problem comes when I checkout a branch that involves files to be deleted. Files that in that branch do not exist yet/anymore. If one of these is opened in the editor, it continues there and you can keep writing on it and then save it.
I know the files can't disappear from the project tree, because we're not keeping track of the project files (at least they get in Project File explorer an exclamation mark telling you that the file doesn't exist anymore). What I want is Visual Studio to close each file that no longer exist. Is there a way to do that? Or does someone have an idea to achive this workflow?
Closing and opening Visual Studio again does the trick, actually does exactly what I want.. But it would be good to avoid it.
Thank you
I think you have forgotten to include the project file vbproj or csproj in git
I recently migrated a VSS database to TFS 2008. Using Source Control Explorer, I got the latest version of a solution with 12 projects.
When I opened the solution in VS 2005, two of the projects were not found. I am not sure why these two projects were not found, but thought it easiest to just delete and re-add them to the solution.
When I do this, VS gives me a "A project with that name is already open in the solution." The project doesn't appear in solution explorer, and is not listed in the .sln file.
Any ideas?
I had this problem and I was able to solve it using the following steps:
Remove the project from the solution.
restart visual studio.
add the project to the solution as an existing project.
I had the same message... Seems like it comes from (.csproj) project file. Under first propertygroup there is a section named
<ProjectTypeGuids>...</ProjectTypeGuids>
which generally tells Visual Studio to handle that project in some specific way. Some Guids can be found here.
First make a backup copy of that file. Then removing that section can help you open the project as usual project. As it seems that the Visual Studio thinks that the project is not the type that is specified in the ProjectTypeGuids.
This did it for me:
remove the section <ProjectTypeGuids>...</ProjectTypeGuids> in each project
reopen each project, then save to overwrite the existing project file, finally exit
reopen the solution file
pray (optional)
If anyone uses AnkhSVN instead of TFS, it's also possible, that the .sln-file need the following lines:
GlobalSection(SubversionScc) = preSolution
Svn-Managed = True
Manager = AnkhSVN - Subversion Support for Visual Studio
EndGlobalSection
in the "Global" section.
Before anyone tries tempering with their solution- and project files, figure if you may have project dependencies outside the solution, such as IIS - and you forgot to start Visual Studio in Administrator-mode
For me, the project not loaded was because it was configured to use IIS on the local machine and I needed to start Visual Studio as an Administrator.
I have to say that removing the section <ProjectTypeGuids>...</ProjectTypeGuids> could create some problems.
In fact, such a section defines the type of the project and, if removed, could disable some features.
For example, if your project was originally defined as Smart Device (C#), after removing the aforementioned section the on-device debug may not working properly.
Delete .suo file. Build solution. Add Projects.
Unfortunately I don't know the why behind the obtuse error message, I can merely provide what steps I took to get it to go away.
In my case, I had reconfigured my local IIS (<UseIIS> not <UseIISExpress>) and it was no longer hosting the URL that was in the csproj <IISUrl> field.
Editing the .csproj file in another editor and changing that field to the new URL, followed by closing and opening the solution in VS resolved the issue.
I would try hand editing the project/solution files, they are text and pretty easy to read. You can edit the file in notepad. To open up the file as text in visual studio you need to first close the solution. Then do file->open and select the sln file, but instead of hitting the open button, press on the right side where there is an arrow and select open with.. from there you can select source code editor (text).
Somehow VS 2022 doesn't create a virtual directory anymore. I had to manually create the website in IIS
I had the same problem when i migrated a website to a web app project.
Unload the web app.
Add the existing website.
Reload the web app.
The following worked for me when I moved a project running vs2010 to another laptop.
I removed exactly the following and it worked:
<ProjecctType>Guid of sorts</ProjectType>
<SccProjectName>Svn</SccProjectName>
<SccLocalPath>Svn</SccLocalPath>
<SccAuxPath>Svn</SccAuxPath>
<SccProvider>SubversionScc</SccProvider>
For those looking for this while dealing with VSTO projects...
Be sure to have the Office Tools for Visual Studio installed in your machine before opening the project.
I solved it by changing Windows' regional settings. Instead of "English (Europe)", I used "English (United States)". Others have reported similar behaviors with changing for example from "Russian (Ukraine)" to "Russian (Russia)", etc.
-AlessandroSegala
Work For me.
Ref: http://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/customized-cultures-cannot-be-passed-by-lcid-only/26eb9d4b-7ddb-4774-8a40-7a7d84ba9277?auth=1&rtAction=1455534187354
In my case it was corrupted vbproj file. First line was missing:
<?xml version="1.0" encoding="utf-8"?>
After adding this line I had to close the solution, delete .vs folder and open again.
I got it in Visual Studio 2022 version 17.4.4.
You may also see:
Error HRESULT E_FAIL has been returned from a call to a COM
component.
when you try to reload your project.
One way to load the project (and deal with IIS directories later) is to edit the .csproj file and set UseIISExpress to true.
Replace:
<UseIISExpress>false</UseIISExpress>
with
<UseIISExpress>true</UseIISExpress>
Then you need to close your solution and open it again and the project should load.
I encountered this issue with web application projects.
When I tried to reload the projects, the VS2022 output said something like :
"The project is configured to use IIS. Unable to find the server
'{site_url}' on the local computer. Ensure that the local IIS is
configured to handle secure communications."
Which is pretty clear. Indeed, in my case, this was caused by my website https binding that just vanished for no reason (it happened to me several times, looks like a bug with Windows 11 & IIS 10). Things got fixed when I got my https binding back (projects could load norammly).
In VS 2022 to open a legacy web project I had to:
Remove from Solution
Change framework version from 4.6.x to <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion> in from csproj
Remove <OutputType>Library</OutputType> from csproj
Close Solution and open it again (!!!)
Add project to the sln again.
We have a large solution with many projects. Some of the projects were outsourced, and the vendor used TFS. When they commited into our SVN repo, some of the bindings are still hanging around.
When I open the sln, VS2008 says "The source control provider associated with the solution cannot be found, do you want to remove them". I hit yes, save and exit, and then next time it does it all again :)
So - anyone know how I cam get rid of any TFS bindings from the sln once and for all? Do I need to manually search the csproj files for any "scc" references and remove?
Thanks!
Some PDA deployment projects(.vddproj) had some bindings hanging around.
Just removed them manually :)
The way to remove the bindings is to search the csproj files and remove it. There is a similar question on this topic already: See: How to remove TFS source control bindings for a solution from the command line
Here's a PowerShell script to remove the source control binding info. It was ported from some C# and only tested on VS 2010 solutions. The original code was written for VS 2005 and 2008 so you could probably add the relevant stuff back in.
Here you can find a tool (including source code) to remove both SCC footprint from the solution and project files and the .vssscc and .vspscc files. In addition, it removes the output and other configurable directories.
Hth
Stefan