I have been struggling with a very weird issue that has suddenly popped up on the latest version of Eclipse Classic (4.2.2).
Everytime I try creating or refactoring a class or subclass in any of my projects (all Java) in my Eclipse workspace I get an error at the very top of my class that says
A class file was not written. The project may be inconsistent, if so try refreshing this project and building it
Again, this happens when I create new classes. And even when I rename current classes, then undo the renaming, its totally fine, but changing a single character in the name causes this error to happen for that specific class.
I have Auto Build on, and I tried multiple times to clean and refresh every project as well as restart Eclipse entirely.
I have literally no idea how to even start figuring out how to fix this. The solutions i've found through search didn't help, so i'm hoping I might find any clues here.
I had the same problem and here's how I solved it in the end:
It turned out that the disc space on the drive where workspace resides was full.
Silly mistake but worth checking.
In my case, this was caused by the fact that the build output directories were owned by a different user, and Eclipse could not write into them.
I had the same issues, the following worked for me:
Right click eclipse then running "as an Administrator"
Click Project > Clean.
Clean your workspace by starting eclipse from the command line with the -clean argument :
eclipse -clean
See also How to run eclipse in clean mode? and what happens if we do so?
I solved this problem by running Eclipse as root.
I had the same issue on Mac OS X. I had a maven project.
Try running the following command on Terminal. This looks like an access issue.
sudo mvn clean
Provide password for admin user.
Then open Eclipse and refresh your project.
We are using Eclipse here too and have to handle a workspace with more than 200 plug-ins. Every now and then people have similar problems with their workspace and inconsistencies reported in a weird way by Eclipse.
What people here usually do is (next step only in case previous step didn't help):
- trying to ContextMenu->Team->Clean/Refresh the whole workspace
- creating a new workspace and check out all necessary files from the repository
- reinstalling Eclipse to a new directory
From my experience after using the Eclipse IDE on a daily basis for many years, it doesn't make very much sense to waste too much time with these issues, unless they aren't solved by one of the steps above. It takes too much time to struggle with these things, while starting from scratch is done in an hour or less (and usually fixes the issue).
If your Eclipse still behaves strangely it might make sense to go through your installed plug-ins. Not all external plug-ins follow the Eclipse guidelines and can seriously harm the performance and operational consistency of your Eclipse installation (E.g. Sonar Plug-in, Toad Plug-in, ...)
In my case this kind of error caused due to disk space got full and it got resolved by just freeing disk space where eclipse have been installed.
That is c/d/e drivers.
I come up with the same error, and in my case, this is because the permission of the project/bin directory is not recursively 775
I fixed it by:
Remove the project/bin directory: sudo rm -rf project/bin
Switch to Eclipse, rebuild the project: Project->Clean...
Then no errors.
Try to launch Eclipse as Administrator.
In my case such error was caused by a question mark in a quoted method name (I use geb+spock combination for automated testing).
So this method name will throw an error "Do you want something?"()
And this will not "Do you want something"()
It may not be the best response but to fix it, I've just delete the error marker.
Had the same issue. but cleaning the project and restart eclipse didn't help and disk space was not the issue. Solved the issue by copy the code to notepad(just to not lose it) and then delete the class, recreate it and paste the code back in again.
I solved it changed the owner of the project files. I changed from root(old owner) to user my current(user that i use with eclipse).
Just changed and saved java file to recompile the class. Then error disappeared.
I was try run
Project->Clean...
And Rebuild. My problem was resolved
For linux (Debia) and working on Spring boot project (maven):
$ sudo mvn clean
Then open Eclipse and File -> Refresh.
I had same issue, it is something similar but this post didn't help in my case. I have many inner classes which is causing the compiler to create class names with all inner class names together that is creating class name more than 255 character file limit on NTFS! read it in some other blog. I thought it will be helpful to post here.
Ex : classA$InnerClassB$......InncerClassZ.class in target folder it won't generate the class if it exceeds this limit. Try renaming your inner class name shortened. In my case i have to add InnerclassZ as its exceeding its not generating class and Eclipse complaining.
A class file was not written. The project may be inconsistent, if so try refreshing....
I shortened InnerClassZ to IClassZ fixed the issue.
I had the same issue and it got fixed by running eclipse in administrator mode
Eclipse Shortcut-->Right click-->More-->Run as Administrator
I've been throught that error once when I used wsdl2java to extract java classes from a wsdl, it turns out that all classes were created in the same "class", causing end classes with long names (error - File name too long). When I organized and rename some classes the error disappeared.
I had this issue. I did the following, it resolved.
Open Eclipse in Administrator mode; Right click on eclipse.exe "Run as administrator"
Clean all projects.
#Denny's answer put me on the right track, though in my case it was the target directory. I deleted it for some reason and something automatically recreated with owner root. Changing the directory owner was not enough as it contained files that were also owned by root. So make sure to really remove the complete content of the directory and to change the owner.
In my case current user didn't have access to this project dir
Before giving a try to the above solutions. Just cleaned the project and it worked.
I have ben unable to start FDT. It keeps at the loading
screen. I have already uninstall and reinstall FDT and still cant open it.
It's really hard to say what might be happening. It sounds like it's related to your workspace not being accessed properly.
Here are some things to try:
Try deleting your workspace or choose a different one on startup. (Most likely will fix it)
Run 'eclipse -clean' argument.
If that doesn't work, try deleting your 'FDT' folder on your hard disk at: Home>Library>Application Support> FDT
I am getting the above error when launching a python file that worked in the past. I think I know how this happened but not sure how to fix it. I have 2 computers dual booting different os and use dropbox to stay synced between them all. In the past I synced my eclipse workspace with my mac and windows computers this way and everything worked fine(except I would have to change the location of the python interpreter depending on what system I was using).
I started getting the above message after I added a linux(fedora) to share dropbox files. But my problem is now when I try to update my python interpreter(in windows) it doesn't save my setting. I can hit autoconfig and it'll find the python path and all the files and I hit apply/okay, but when I go back its all blank. I'm pretty sure the linux machine messaged my settings up, but I need to develop on all 3 boxes so I need them to be kind of synced.
Wondering how to fix this and if there's another way to do this so I don't have this problem in the future?
update: this def. has something to do with my workspace. When I change the default workspace to a new folder and set the python interpreter it works. Still not sure how to permanently fix this(don't want to have to copy code back and forth to new workspaces.
I think an answer of how to share workspace among other enviroments is still very helpful but if anyone is having a simlair problem and just needs to fix it to work quickly here's the solution:
go to File, switch workspaces and figure out where your workspace is located
Go to that folder and rename the .metadata folder and relaunch eclipse
In eclipse everything will be missing, so go to file-->import and import the folder with all your projects(do the root folder of all the projects so you don't have to import each one individually).
setup any customizations you had before
This is not the best solution but it works. Hopefully someone else has a way of preventing this problem from happening in multiple environments.
It seems the preferred way is through F9: http://pydev.org/manual_adv_launch.html
eclipse run as same as what it run last time.
then first time run in this way.
in package explorer (left).
doubleclick res then menu.
then rightclick main menu (name.xml).
frmo menu select run then run as application.
and you can run as default in next time(from menu or shortcut).
This problem can often be solved by exiting out of eclipse and restarting (if that happens to be convenient for you). Changing workspaces midstream can often confuse Eclipse even if PyDev is correctly configured.
I have a problem each time I close Eclipse (Helios Release 1 in Windows Vista). This is the error log:
Problems occurred while trying to save the state of the workbench.
Problems occurred during save.
Problems while saving variables and containers
C:\Users...(workspace dir)....metadata.plugins\org.eclipse.jdt.core\variablesAndContainers.dat (Access Denied)
When I started using Eclipse I used to have the workspace in different directory. Then I moved it to a different location. On loading the workspace it works correct.
Any ideas how to fix it?
To fix go to your workspace and delete the .metadata folder. Restart eclipse and point it to where the old workspace was and load projects using File -> New.
You can only load one by one but at least it solved the issues
It seems like the problems is now solved. I managed to do that in an unorthodox (in my opinion) way. It seemed that there was an access problem. Eclipse didn't have access to its own .dat files. Probably because of some windows-eclipse misunderstanding. I tried to delete the files that were making an error and Eclipse created them again. Like that, problem was solved.
Best way is looking into WORKSPACE/.metadata/.log where Eclipse spits out all everything what's wrong. Maybe there is just one small file to kill or unlock. So you don't need to import all former projects from scratch
I fixed it by going into:
workspace\.metadata\.plugins\org.eclipse.jdt.core\.org.eclipse.jdt.core.external.folders
I unhid the .project file and granted permission to the file for system, admins etc.
My problem was solved
I'm not sure if the problem is the same but in my case was the Controlled folder access in the windows defender that was the source of my error.
I turned off in the Virus # Thread protection settings and restarted eclipse and was OK.
After extracting the Eclipse Galileo, it worked fine for a couple of days. But lately when ever I run it. It throws an exception/error :
Eclipse Galileo Error: there is no disk in the drive. please insert a disk into drive device harddisk2 dr2
Though I tried to remove it, and extract it again, however it still give me the same error!
Some plugin probably remembers a drive you once used it with. Try deleting workspace/.metadata !
Under windows, the directory name may be slightly different, and it may be hidden. Find it, kill it!
This is a brute-force solution. But since you were already willing to tear down and re-install Galileo, I see no further harm in it.
Read the exception literally - you don't have enough space on the hard-drive. Clean up some files and try again.
(by "cleanup some files" I mean - anywhere on the hard drive, not only in the workspace itself)