Short Version
I found myself losing alot of time renaming + including files in my Xamarin.Forms Projects because any change from Upercase to Lowercase (or vice versa) only in the files, will result in no change what so ever in the Project file, so i have a few questions:
Is there an option in Visual Studio that makes it take into account file renaming from Upercase to Lowercase? (See Edit Below)
What's the best way of changing alot of files from Upercase to Lowercase without delete/re-adding them?
Is renaming the file includes in the .csproj directly a Good Practice? if not, what is the best for this kind of scenarios?
Longer Version + Adicional Info
I had to include over 2000 images (Android + iOS and their respective sizes). So i started copying the files into the correct directory and include them in the Mobile Projects, the problem came when i already included the files in the project and some of the files had Uppercase letters that i haven't noticed before, so i made changes by hand to all the files, when i noticed that those changes weren't reflected in the Solution Explorer/Project File, i tried manually and got this error:
Edit: It seems this issue was apparently resolved in VS2019 arround v.16.1, but only if the file wasn't renamed externally. Since i did that i got this warning. This anwsers my first question.
And one solution that i found was renaming like: Foo.png > fooo.png > foo.png
But that would be exponentialy time-consuming by the number of files i had to edit, so i made this piece of code:
string filepath = #"C:\Users\(...)";
DirectoryInfo d = new DirectoryInfo(filepath);
foreach (var file in d.GetFiles("*.png", SearchOption.AllDirectories))
{
if (file.Name.Any(char.IsUpper))
{
File.Move(file.FullName, file.FullName.Replace(file.Name, file.Name.ToLower()));
}
}
What it does is basically create a new file but with Lowercase, that means i still have to Remove the old References and Include the new Files. This doesn't seem right since a simple rename would do.
What's my go to option here?
Windows as operating system is ascendant of the operating system where there was no difference in lower and uppercase. As such at today's state Windows treats the files with same letters as the same though technically it can remember and display lower and upper cases in file names.
Overall it means your request is not natural in Windows. Maybe someone can provide you with some hack, but if you want to resolve this problem quickly move your project to the Mac where this works differently at the operating system level, perform your operation in Visual Studio for Mac and then you can continue to use Windows if you prefer.
EDIT: Actually I can tell you one hack for Windows. First rename file to whatever you want (like add 1 at the end) and then rename it to the desired file name. It will work properly.
I had the same issue. In my case the files were in the .csproj (Project File) with lowercase name. Removing the affected lines from .csproj fixed the problem.
In Visual Studio 2019 -
Right click on the project name in Solution Explorer -> select "Edit Project File"
Find the offending file under ItemGroup, you can either remove the line or edit the filename. I have not had any side effects by removing the file as I know what I am doing, your mileage might differ.
Just incase cut and paste the delete or rename before hand in Notepad in case you want to go back, Ctrl-z works too :)
When moving files around in a project I ran into some pretty frustrating namespace collision issues. After the fact I learned a better way to move the files but I'm hoping to find a solution. Here is what I experienced:
After moving files via cut/paste I had a namespace collision (I have many pages with the same name in different folders e.g. Foo/Add.aspx and Bar/Add.aspx). When I moved a page, associated code behind and designer to a new folder I had a namespace collision. When I updated the namespace VS showed the little red marker indicating it wanted to "help" me by renaming. I had VS go ahead and "help" only to find after several attempts that it was also re-naming the file in the folder I had moved from e.g. When I renamed Foo/Add.aspx VS was also changing the namespace for Bar/Add.aspx
Does anyone know why this is? Or how to avoid it? I fixed it by manually changing all my namespaces and not allowing VS to "help" me out.
There are a few options:
if you have Resharper then use the Move function
don't copy/paste with a project, instead you should drag/drop - that way the proj file is updated and files maintain their relationship (i.e. when you have generated code behind, etc). Then the moment you've dropped, go and change the namespace in the dropped file.
create a new file in the target folder, then just copy the contents (everything inside the namespace declaration) of the old file across. The new file will already automatically have an appropriate namespace defined.
None of this tidies up any code that references the old code that has been replicated/moved. You'll have to fix those references yourself, unless you use Resharper (which does that for you as part of the move).
If you're talking about class namespaces, the problem is that VS has no way to know which "Add" namespace you want to rename. It just renames all the ones (in its current scope) that match that current name to the new name. If you want to avoid that happening, they will need to at least be in different VS Projects. VS does not care about file names or paths, except to the minimum degree needed to find them for compiling.
what I do is, I always create my class in the destination project and copy the content of the source class to the destination class. in this way you will be safe.
I doubt if there is a any magical way to avoid that problem.
I have a solution that includes various C# projects, and I just now noticed that I can't change the default namespace on any of them.
When I go to Properties --> Application on any of the project and change the "Default Namespace" field, a fatal error dialog pops up that says:
exception of type 'system.runtime.interopservices.externalexception' was thrown
At this point Visual Studio becomes unusable, as I can't close it or leave the screen, every click or button combination I press makes the same dialog pop up. The only thing I can do is terminate VS with the task manager.
I got around it by just renaming the <RootNamespace> node in the .csproj file
Maybe you should try to do this in another way:
Ctrl-H - Find: PreviousNameSpaceName Replace: NewNamespaceName
You can also right click the namespace in code and Refactor->Rename.
What is more: you can change the names of your projects, solutions, directories - etc. Namespaces, when adding new files, are generated using these names in fact.
I had to investigate the issue in our company and I found another workaround in our case. So I think it make sense to add it here.
Possible Solution
Check if you have more than one suo-File for the project/solution and delete the one which doesn't has the ".v12.suo" naming (better delete both)
Story behind:
We still have two Visual Studio installed (2010 and 2013) and some of our developer worked recently on 2010. So they had on the file system a regular ".suo"-File. Afterwards (some weeks later) they started to use 2013 (which created a ".v12.suo"-File).
We renamed both suo files, started VS2013 (which created the v12.suo) and were able to rename the namespace without a crash. In addition we had this issue not on all solutions. I didn't see yet a pattern, but in our case it happened mostly on solution with at least two projects and referenced project-libraries.
Specifically the error occurs in the Resources.Designer.cs:
Error 2 The namespace 'ModulusFE' already contains a definition for 'StockChartX' Resources.Designer.cs 11 21 ModulusFE.StockChartX
I've googled this and am still quite confused. Does anyone know anything I might try?
I have tried rebuilding and cleaning, as well as renaming the Resources.Designer.cs file in hopes that it would rebuild, but no luck.
The top of the code says this:
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.225
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
Any ideas whatsoever would be appreciated.
Looks like a bug in VS code's OmniSharp.
Solution for me was to execute command "Restart OmniSharp".
Just do:
- ctr shift P
- type "Restart OmniSharp" .. hit enter
This fixed it for me.
I had this happen to me about a year ago and I don't remember exactly what the root cause was, but there are two things you might try:
If it's an auto-generated file (as 'Resources.Designer.cs' tend to be), try deleting it and letting VS re-generate it.
Either separately or in conjunction with #1, select Show All Files in the Solution Explorer or open the solution folder in Windows Explorer - it could be that a version of the file somehow got excluded from the project and is therefor 'invisible' to VS but still makes it angry...
I've had this problem, too, and it was because I created a new namespace, but the parent namespace contained a class with the same name.
This is an old question but I didn't find the fix I used, so I've added it here.
In my case it was a namespace with the same name as a class in the parent namespace.
To find this, I used the object browser and searched for the name of the item that was already defined.
If it won't let you do this while you still have the error then temporarily change the name of the item it is complaining about and then find the offending item.
Unfortunately, none of the other answers helped.
My problem specifically occurred in a WPF project.
The problem arose when I created a folder under the MainWindow folder, which effectively created a namespace something like ProjectName.MainWindow.Folder.
Now, I believe because of some static designer code, Visual studio gets confused between the class MainWindow and the namespace Project.MainWindow.Folder .
As a solution, I moved the Folder out of MainWindow. Looking at the Class View or the solution/project helps to recognize what namespaces and classes within them exist.
This just happened to me. What happened was that I duplicated a project that was originally under source control. Although I properly renamed everything, the file permissions on all the files were still set to read-only. When I started modifying some form controls, Visual Studio automatically created a Resource1 file because the original Resource file was read-only.
What I did to fix this was as follows:
allow write permissions on the project files.
deleted the original Resource file
Ctrl-A for all form elements, then Ctrl-X to cut them.
Save the form.
Ctrl-V to paste them all back.
Save the form.
I had to do this because the auto-generated code wasn't updating on it's own, so I "forced" it to update by making a change to the form. Not doing this left a bunch of code from form elements that no longer existed prior to changing the file permissions.
I had an xaml file with the following definition
<Window x:Class="mm2.Views"
.etc..
/>
mm2.Views was the name of a namespace in my app.
To fix it, I correctly renamed the xaml object:
<Window x:Class="mm2.Views.RecordedTracks"
.etc..
/>
I had a similar problem and resolved it by removing any copies/backups of the .cs file from the directory.
I had this same problem and it was due to naming a function in the code behind the same as my tool. Simple mistake but something to keep in mind as well.
I had a similar issue however found a different solution than what I have read. I came to my fix after reading P Walker's answer.
My issue happened when I named my resource file for Japanese language incorrectly. Long story short I was trying to create a Resource for Japanese but I accidentally named it localized.jp.resx. I then realized that the iso language code is ja not jp for Japanese. Once I changed the file name to localized.ja.resx and deleted everything that was in the designer file it fixed my problem.
This is what fixed my problem hopefully it helps someone else.
I came across a similar problem. After generating my database from an edmx file, I clicked 'save all' and 'build' and all the Types/Model classes that I created showed up in the error box. I researched why this happened and like your replies suggest, I thought it was something that was auto-generated.
However, solutions like deleting the auto-generated classes and re-generating them didn't work for me.
I eventually ran out of patience and decided I'd fix it another way. Since my script was saved, I just deleted the edmx file (and its reference in the web.config) and went back and created another one using "model from database" and didn't touch it after that.
Needless to say, I was pretty mad that it turned out like that.
Me too got this error,
When I change my WPF project's Target Framework to Framework Version 4.0 Client Profile -> Framework 4.0. It's solved by itself.
The way I solved it was to remove all of the enums from the model browser, and then re-add them again. Somehow miraculously the tool regenerated everything perfectly and the error message went away (I'm using VS2012, FYI).
What helped me many times, was just turning it off and on again..
Ctrp + shift + P -> Reload window in VS Code
Close and open the project/window.
Cleaning all bin, obj contents (in power shell)
Get-ChildItem .\ -include bin,obj -Recurse | foreach ($_) { remove-item $_.fullname -Force -Recurse }
After this, it can be that I am missing something else, like some package reference or include, but usually it is, that underlying parser/compiler (omnisharp) just gets messed up and needs some restart to work properly again.
This may be a bit of an edge case, but we've run across this in our development environment from time to time. We had to setup a custom culture in Windows to support en-HK. Windows 8.1 now supports this culture natively as does Windows 2012 R2, but older machines need to have the culture created. Any machine that does not have this culture setup will get this error reported. The solution is to create the culture on the machine (We have a console app created for this purpose) and everything starts working again.
I had the same issue just now, and I found it to be one of the simplest of oversights. I was building classes, copying and pasting code from one class file to the others. When I changed the name of the class in, say Class2, for example, there was a dropdown next to the class name asking if I wanted to change all references to Class2, which, when I selected 'yes', it in turn changed Class1's name to Class2.
Like I said, this is a very simple oversight that had me scratching my head for a short while, but double check your other files, especially the source file you copied from to ensure that VS didn't change the name on you, behind the scenes.
If you are using different aspx.cs files that define classes of the same name you can use
<compilation targetFramework="4.5" />
under <system.web> in your web.config file.
Although I would still strongly advise that you would change the class name.
This is not the best solve, but if you really don't care it is an easy solution.
I simply renamed my class. So I had class Card and I changed it to MyCard.
I think this issue is because you have added for a single table, 2 DAL classes.
If this table is included in a relation, then remove the table_name.dbml for it, and keep that for the related tables.
You must use one of them.
I had a similar problem (Universal project, Visual Studio 2015), I solved it with the following changes:
In App.xml.cs was (it was ok):
namespace Test.Main {
Wrong, old version of App.xml:
x:Class="Test.Main"
Good, new version of App.xml:
x:Class="Test.Main.App"
I had something similar to this happen in my WPF application. It arose when I was trying to do some cleanup by declaring a namespace that was more descriptive. The problem arose because I had named the namespace in the code-behind (or cs) the same as the Window class. The namespace in the code-behind should have the last section stripped (after the rightmost dot) and used to declare the class and instantiate it. Notice Win below:
xaml
<Window x:Class="FrameApp.UI.Invoice.Win" ...>
code-behind
namespace FrameApp.UI.Invoice
{
public partial class Win : Window
{
public Win()
}
}
An obvious oversight but it set me back at least an hour with all the errors that appeared.
I had this issue, but mine was slightly different to the issues mentioned here. I was cleaning up my project and moving around some classes into new folders. I had a 'AddFilter' class that I moved into an 'AddFilter' folder - so I had actually wound up with a class that was sharing the name of a namespace. This was a bit tricky to spot at first because I couldn't find any other classes that it was conflicting with; it was conflicting with the namespace instead.
If you copy&paste your pages don't forget to rename class names. Otherwise you get this error also with "Type already defines a member called 'OnGet' with the same parameter types"
look this happend to me when I created new file inside a folder with the same name of class in the project { folder name : Folder } and there is class name { Folder } so the namespace was the namespace.Folder so that the compiler assume that the cass defined in two places
in new file :
namespace APP.Folder
{
partial class NewFile
{
// ....
}
}
in the other file (the file that hase the problem):
namespace APP
{
partial class Folder
{
// ....
}
}
-- so you can edit the folder name or remove the .Folder from the namespace at the new file
I know this is an older post, but I thought it might help someone else if I shared my experience with this error. For me, I was working in Visual Studio 2019 and using Xamarin Forms. I received this error message when I created a new folder and named it the same as a Content Page I had made previously. Apparently we're not supposed to do that...
Anyways, I had to rename the folder then go through to each individual Content Page within the folder are change their namespace (in their .cs file) as well as the x:Class within their ContentPage tag (in their .xaml file) to reflect the folder's new name.
That's what worked for me. I hope it is helpful to someone else in the future should the error rise again.
I've had this problem recently, all i did is rename the file and class then build. then return again the original filename. It worked.
This happened to me, I noticed that there was actually another class with that same name under the same namespace "OtpService.Models.Request", so all I did was to just change the namespace of the 2nd class to "OtpService.Models.Request.ExtraObj". I did this because I did not want to change the name of the conflicting class to anything else.
I came across this partial class problem in a winform of a solution after converting from .net 4.5.1 to 4.7.2.
Initially the problem the compiler was not complaining about partial class but the use of properties.default...without qualification. After adding Global::solnNameSpace. qualifiers, then I got the partial class problem.
after viewing answers in this thread, I look at the resource designer file, I found it was generated with explicit solnNameSpace while the classes in the solution did not. Also the solnNameSpace is the same as the name of the problematic class name.
To fix the problem with the least effort and time I backed out Global... qualifier and removed the explicit namespace ... and end statements from the resource designer file. I know I may get in trouble later on if there were changes that cause auto generation of the resource designer file but I was was under tight deadline. I made documentation on the temp change instead of a better long term solution since the solution is under no change allowed for nature of the solution and multi project use.
I had this problem. It was due to me renaming a folder in the App_Code directory and releasing to my iis site folder. The original named folder was still present in my target directory - hence duplicate - (I don't do a full delete of target before copying) Anyway removing the old folder fixed this.
when you have tried everything else and still get the same trouble, there is a way out; however it will be tedious and need careful preparation.
Start another new project using existing files, or edit the project .csproj file if you are proficient in editing csproj (need backup). I will list steps for new project.
preparation:
note all references and their sources
note all included files from another project
rename the orginal projectname.csproj file
close solution/project
start new project using existing files(you will get errors from references)
add back the noted references
include/add existing file from other project(s)
I'm upgrading a project from Visual Studio 2003 to 2008 and wish to automatically generate XXX.Designer.cs files and update the corresponding XXX.cs original one.
Any automatic way to do it?
UPDATE: I'm referring to WinForms. Of course, I know the old style works but i'm looking for a way to go to the new style without doing it by hand.
There is a macro out there floating that does this. I have used it and it works great. Start by looking at Nathan Jones Blog. If you dont have much luck then download a zip of the macro source (I posted) from VSCONVERT - PasteBin
The original classes will continue to work - even with the Visual Studio designer. The code the VS puts in the Designer classes is simply meant to remove the designer "noise" into a separate file so you can focus on the non-visual code in your class.
Once you migrate the project to VS2008 using the wizard, you can open up your forms in VS and continue to edit them just like you did before. Any new forms that you create will get Designer backer files.
We had this problem.
Basically the designer file should contain nothing but a set of object declarations (i.e. the objects on the form) and the InitializeComponent() call. If you've done any fancy work on your constructor that might be there too.
Simply create a file called MyForm.Designer.cs and add it to the project. VS2008 will automatically place it underneath MyForm.cs. From there, if you create the partial class heading and the namespace, then copy across all the declarations and Initializecomponent call into the designer file, then it will work.
But because if you had to, people would edit initializecomponent and also edit the default constructor, VS2005 and 2008 couldn't automatically upgrade these files as all sorts of strange things might occur. I guess from a project point of view, what benefit do you think your working code will derive from the separation?
I'm not sure I understand, but I'll make a guess.
Was this an ASP.NET project in VS2003? Did it have .Designer.cs files in it? Is it the case that you've done an upgrade but you find that you have no .Designer.cs files now?
If so - you may have inadvertently changed your Web Application Project into a Web Site "project". This sort of "project" was introduced in VS2005, so you would not have seen it yet. These aren't real projects (no .csproj file), and they have many other differences.
Otherwise, if your project didn't used to have .Designer.cs files, then why do you want them now?
In general, the way to create designer files is to open the file in a designer, wait a few moments for the designer to finish what it's doing (updating the screen, etc); and then saving the file. You might possibly have to "touch" the original in order to get the designer to reevaluate things.