I have a fairly simple one solution project in VS2012. Standard windows forms, no special DLLs.
I get to a point were if I add more code to any form, or add a new control, the build fails in DEBUG mode. If I remove the line or the control, it works.
If I switch to RELEASE, the build succeeds.
If I create a new configuration and copy RELEASE, then that too fails.
If I revert to VS2008, all is fine. If I then re-convert the solution, it will be fine for a while.
Anybody else see that? I have researched the cases about missing DLLs and locked files, but that doesn't seem to apply. Neither does renaming the assembly work.
After many hours of looking at the options, a workaround is to turn on optimisations in "Advanced Compile Options".
I do not know what optimisations actually optimise, but they are turned off in debug by default because the debugger doesn't like them. Apparently, they will move code around.
This is obviously only a workaround and not the cause, so any other suggestions are welcome!
Related
I have a solution written in VB with some C# components. The solution uses some libraries from 2 outside sources. I have been working on this project for several months without issue. I cannot identify anything specific that I did to change my system or configuration. I was just working through the code, transitioning from an old set of library calls to the new library calls. The new library calls require complete rewrite so I change sections of the code and test to that point. Visual Studio 2013 debugger as of Friday morning will no longer recognize or show my local variables in this solution. The only things that appear in the Locals window are under Me. The code does work and I have it writing out to a text log file to confirm the values of variables at certain points, but the debugger has gone blind. When I add any of these local variables to Watch the response is " is not declared. It may be inaccessible due to its protection level."
Steps I've taken so far with no permanent success:
looked online and tried the few matches I found with no success
deleted the bin and obj folders and had the solution rebuild with no
success
recreated solution from scratch, copied over base files and rebuilt
solution and project (which worked for a few hours), until I did a
rebuild project and problem appeared again
updated to pack 5 and no success
I have opened my older projects and checked them. The debugger runs just fine and shows the variables. It is obviously something that happens during the rebuild process.
Any assistance would be greatly appreciated.
Thanks
Update:
Let me try to explain a little more clearly the situation.
I have an application I have built and am selling to some customers. Version 1 is installed and running at several locations. It is written in VB and uses some older COM libraries for a particular integration process.
The vendor is retiring the COM libraries. Their new libraries are in C#.
I created a new copy of my entire application (solution) and imported the new C# libraries. I have been going through and replacing the old code with the code for the new calls.I recompiled the solution and everything ran fine in debug.
The objects used with the new calls are completely different and there is limited documentation so I update a section of code and test to that point. Each time I "Save all Files", rebuild the project and test the changes. Everything worked fine for a few days. On Friday morning I started working on more changes and got an odd error. The system was not getting a proper value for a certain variable. When I went to check it in the WATCH window, debugger said it could not evaluate it. I figured something was hung up so I shut everything down and rebooted my machine. When I tried it again later, the same problem.
After several hours of no success I exited VS, renamed the folder to "OLD" and recreated the solution from the older version. Immediately everything was looking fine. I started making the changes and testing. Each time I did a rebuild, everything looked fine until the last change. Here I am again.
The code works fine up to the point I have updated. The only issue is that the debugger windows are not working correctly. If a variable is declared at the Class level outside the Sub, they can be seen. The only variables the debugger is blind to are the local variables within the running Sub.
I looked for anyone else with this issue and only found a few items. I tried the suggestions but no joy. I am left with having to temporarily define the variables outside the sub so I can see them while debugging.
I am on VS 2013 Update 5.
Do I need to move to VS 2015 to get around this?
Thanks again for your time and assistance.
I am assuming that you haven't changed versions of visual studio since the last time a rebuild worked for you.
recreated solution from scratch, copied over base files and rebuilt solution and project (which worked for a few hours), until I did a rebuild project and problem appeared again
Based on this, you create it from scratch and everything works until you do the rebuild right? But you are copying the base files still and you have new library calls since the last time a rebuild didn't mess up the locals window. So one of those is almost assuredly the culprit.
Since the library calls seem to be the thing that changed based on your post start there. If you go back to the old code and do a rebuild does it fix it? Assuming so, put the library calls back one at a time until it breaks.
If going back to the old code doesn't fix it, create from scratch with the old code and copy over the base files and rebuild. If that fixes it, add new library calls one at a time and rebuild after each until it breaks.
If that doesn't fix it either, then you will need to dig deeper on what else might have changed.
You are copying base files so eliminate those as the problem if you can:
Are you able to use placeholders instead of the base files or something that won't necessarily work as a finished product but that will allow you to debug, rebuild, debug again to see if the problem is related to one of them? Check the dates on the base files and ensure that they haven't changed since the last time a rebuild worked.
Something you could do concurrently could be to have have a colleague do a rebuild on their machine and see if the same issue comes up for them. It would (almost) completely eliminate the possibility that it is a configuration / program corruption issue on yours. Alternately, there are some free vb.net compilers online that you can upload files and code to. I'm not sure if that would be practical for you (due to the components of your program and/or sensitivity of the data) or not and haven't ever tried any where there is C# code in there but I wouldn't think that would be an issue.
I have a rather large solution of about 20 projects, that I have worked with for about three years now. In recent weeks, I seemed to have lost the ability to just press "Run and Debug" on my toolbar. If I do this, I lose all ability to debug and use breakpoints. My breakpoints all get a little yellow exclamation point on them and never run. Below is an example.
To fix this so I can get debugging again I have to fully clean the project. If I try to run after cleaning, i get an error saying the file does not exist. So I have to then fully re-build the project before I can run. It works just once, and then I lose my ability to debug again. Below is the error if I don't manually build first:
This seems to be effecting several (maybe all) projects in my solution and is causing extremely large problems for me. Some of my projects I need to breakpoints to verify data before it runs, and if I forget to do this, it runs before verifying.
Any help in fixing this would be amazing. Under solution settings, my start up project i set to "Current Selection" if that helps.
UPDATE:
So far under solution settings -> configuration a bunch of my items had "Build" not selected for Debug. Not sure how that happened, but updating that for now seems to have solved it. If it goes to not building each time again I will re-update, but for now I think that solved the issue.
On both Xcode 4.4 and 4.4.1 I'm experiencing the same issue in that with the specific project I'm working on, I don't seem to be able to rename any classes or variables from the Refactor menu option.
Each time I try and do a rename, I type in the new name for the class/variable and click Preview at which point the bottom left begins a spinner with Finding files.... However, I then get a message saying:
The selection is not a type that can be renamed.
Make a different selection and try again.
I'm pretty sure that this is not an issue with my specific install of Xcode, because I can refactor other projects fine, it's just that I can't seem to be able to refactor this specific project.
Anyone with any ideas? I don't have any particularly exotic configuration for this project, it just seems to be a random affliction. I've deleted all of my derived data and re-indexed, but that doesn't seem to help.
Since it works OK in other projects, I'm thinking one thing I could try to do is re-generate the actual project file(s) itself. I don't know if there is a way to do this automatically?
If they're in dropbox get them out of there. It mangles project files. I've had it happen numerous times and at times it makes refactoring > renaming not work.
I have managed to solve this issue after trying many different things (tweaking project settings, pch, etc.) and it turns out there was a very simple (and totally counter-intuitive) method of fixing this issue.
All I have done is:-
Copy my entire project folder (so from Project to Project Copy).
Move Project (the original folder) to trash.
Rename Project Copy to Project.
Mysteriously, everything now works fine.
I really cannot figure out why this works. As mentioned previously, I had already deleted all derived data, etc. so I don't know why this should make things spontaneously work, but it does.
Would appreciate anyone who is able to shed some light on this as it does expose just how fiddly Xcode can be, and any understanding of what goes on under the hood is always beneficial.
Sounds like a buggered index.
I usually use the nuke from space option to delete everything in the derived data directory.
Unless you have changed it (I change mine to /tmp/bbum-derived), it'll be at:
~/Library/Developer/Xcode/DerivedData
Thus, I'll quit Xcode and do:
rm -rf ~/Library/Developer/Xcode/DerivedData
Yes, it is a bit brute force, but it works. You can likely force Xcode to rebuild the index from the UI, but I never bother. Of course, I'm also installing quite a few "odd" builds of this and that as a part of my day job...
(that is an rm -rf. It means "nuke everything and don't ask" in unix parlance. It is dangerous. Do not mistype that command.)
It seems you have an active selection somewhere in the gui, perhaps some of your files or classes are selected ? Try unselect in every sub window and retry refactoring.
I'm a bit late to this thread, but I ran into the same problem today and I was able to get it to finally refactor correctly, thought I share it.
So in large part I did what bbum said, I closed xCode, nuked the Derived data for the project the class files were in and re opened the project. Doing just that, it didn't work; the key, I found (at least for me), is that I had to do a clean (command shift k) after xCode restarts. After that I was able to rename the class files again :)
Also as a side note, my project is divided into the main project, and a static library. When I had to rename classes in the static library, I had to quit the main project and do what I described in the static library itself. Somehow I got the same error described in the question when I tried to do the refactor/rename from the main project.
Good luck!
This thread was very helpful for me in determining the problem.
It turned out that I had to Repair Disk with Disk Utility. I had visited a site earlier that had hijacked Safari and was telling me to call a number for emergency repairs, an obvious scam.
I followed the Disk Utility instructions to repair disk (including restarting with CMD-R pressed). Another clue was that I tried to commit to git and Xcode said No Way, Jose.
Afterwards I was able to refactor and commit changes as if nothing ever happened. I hope this helps someone else as a possible cause to investigate.
I'm seeing a strange build bug a lot. Sometimes after typing some code we receive the following build error.
Class 'clsX' must implement 'Event PropertyChanged(sender As Object, e As PropertyChangedEventArgs)' for interface System.ComponentModel.INotifyPropertyChanged'.
And
'PropertyChanged' cannot implement 'PropertyChanged' because there is no matching event on interface 'System.ComponentModel.INotifyPropertyChanged'.
Those error should never go together! Usually we can just ignore the exception and build the solution but often enough this bug stops our build. (this happens a lot using Edit and Continue which is annoying)
We're using Vb.net and c# mixed in one big solution.
Removing the PropertyChanged event and retyping the same code! sometimes fixes this.
Question:
Has anyone else seen this problem and has some suggestions how to prevent his?
We're using a code generator that causes this error to surface but just editing some files manually triggers this exception too. This error occur's on multiple machines using various setups.
Someone had the same exact issue discussed here. It sounds like there is an issue with this build picking up an old version of a binary. I would try the following in order:
Verify all assembly references use project references where possible within the Visual Studio solution.
Disable build parallelization in case there is some weird file locking issue with concurrent project builds. Go to Tools -> Options, Projects and Solutions -> Build and Run, then set "maximum number of parrellel project builds" to 1. Not the best solution but it may help narrow down the problem.
Disable the Hosting Process in case it's locking some file causing an assembly to not get rebuilt correctly. For C# project go to Project Properties, Debug tab, and uncheck "Enable the Visual Studio hosting process". For VB.NET project you'll need to Unload Project, Edit the project file, and add <UseVSHostingProcess>false</UseVSHostingProcess> to the PropertyGroup of each configuration. Again, not the best solution but you probably won't notice a difference.
Lastly, try doing a Clean + Build to try and resolve the issue when it occurs (I know this is not a fix but it's easy enough to do), also Rebuild may be slightly different than Clean + Build so try the latter if the former doesn't work.
As I can not comment due to lack of appropriate points.
But I would like to share one of my experience:
In an aspx.cs page I was working, used to compile fine and some time gave mysterious error of a variable not defined or function not defined or sometime variable or the function defined two times. I changed possibly each and every variable and function name but there seemed no effect , but after entering a simple space or a new line at any place in the file used to solve the compile error. At one time I tried to save the file (in a different encoding as i am used to experiments) and found that the file was not saving in the correct encoding (i.e. the ansi encoding because the file had a unicode character ), I removed the unicode character and that compile error didn't bothered me again.
This unicode character problem could be (not a hard and fast rule) there so you could check it.
Nuke & restore using source control (TFS instructions here):
Make sure you have everything checked in
Exit Visual Studio
Rename the project directory to .Bak (effectively deleting it)
Reopen Visual Studio and in source control:
Get Specific Version
check 'Overwrite... not checked out' and 'Overwrite ... even if local version matches'
Re-open project
Another problem: Make sure some source files are not newer than the current date (or your date is set back). Often this happens in apps where you are doing logic that requires certain things to happen differently on certain dates. You change your clock to test it, make a revision to the source with the date advanced, set the date back, and viola, rebuild does not rebuild that file.
You say 'typing it in again' - can you try just saving? After 40 years since MULTIX the .net build still decides what has changed by checking the file timestamp.
good luck!
When you get the error, is it always on the VB calling C# side, or vice-versa, or does it work both ways?
If the answer is either of the first two situations, try building the "callee" project within the solution before building the "caller" project to see if it stops the situation.
Also, just in case it may jog something for you to think about, does this error crop up when you change a VB file or a C# file, or is there no correllation?
Oh, and sorry this looks like an answer instead of a comment, I cannot post comments yet (need 50 rep).
I realize this question has been asked before, but I was not able to find anything that worked for me yet.
Things I have tried:
Switched settings back to default (mulitple ways)
Project Builds/Compiles fine
Closed VS and restarted
The only thing I haven't been able to try is deleting the ".ncb" file, but that's only because I can't find it. In fact not a single one of all our projects have such a file!
So the first question is why can't I find this file in the solution's root directory? The only file I have there besides the .sln is the .suo.
Then if that doesn't work what other options do I have short of un-installing and re-installing?
As for how it happened this might help. While using VS2008 and VSS6.0 (yuck) I made a number of changes to a lot of files via Find&Replace that I didn't mean to(had Entire Solution selected instead of current document). To undo the changes I exited without saving, reopened the solution, then Undid checkout. After that I lost intellisense! I can't imaging how they're related but it might help.
Thanks,
Jeff
IntelliSense usually stops working when it can't compile correctly. Try a new simple project from scratch and see if it works, if it does you have your answer.
Is this for C++ code? If it is, my suggestion is not to try fixing built-in IntelliSense at all, rather try some 3rd party replacement. My favourite is definitely Visual Assist X, which is lot more robust (it almost never stops working, and it is able to parse even very complicated templated and preprocessed stuff, which often makes IntelliSense "lost".
Visual Assist works with other languages including Visual Basic, however this is something I have no practical experience with. Still, there is a free trial - you may try it, I expect it will be superior to IntelliSense even for VB.
Answer:
I figured out how to fix it. Apparently while I was undoing those changes I somehow excluded the file that I wasn't getting intellisense in from the project.
I just right-clicked on it and said "Include in Project" and viola! Intellisense worked again.
Sorry for the false alarm but I appreciate the effort.
Jeff