I normally only use Eclipse just to code in Java for class, but today I decided to use it for my own personal projects. I didn't download anything funky and essentially only used FileWriter, java.util, java.io, and ArrayLists.
Suddenly, after running some code, I was told that Eclipse was no longer responding and had to force quit the program.
Afterward, I couldn't open Eclipse again because the workspace was currently in use.
I've looked up this problem numerous times, and what a lot of people were saying was to end Eclipse through the Task Manager and then go into the metadata file and then delete the .lock file, which I did. However, every time I opened Eclipse again, the program would load up, but there would be no workspace for me to work on. I'd try clicking the icon again, and now the "workspace was currently in use" window would pop up, and I'd go and see that the .lock file had reappeared in the metadata file, again, even though I'd deleted it.
I read somewhere else that another option was to relocate the metadata file, open and close Eclipse, and then overwrite the new metadata file, and it still hasn't worked, considering the .lock file ends up in the metadata again, somehow.
Is there any way I can fix this or am I just better off reinstalling Eclipse?
Thank you for any help, and sorry if this is very simple—I'm still very new to all this!
Related
When I imported my project in Eclipse Oxygen, it gave the below error.
"The project was not built due to "Could not delete '/Help/build/classes/exportFile'.". Fix the problem, then try refreshing this project and building it since it may be inconsistent"
Googled and got that to delete the contents of the bin folder and clean the project. But there's no bin folder. Tried cleaning, still the same error. What else can be done
You found a solution yourself, but here are some more informations about this error.
First, you said, your search brought up answers where deleting the bin-directory manually solves this but you don't have this directory. Reason for that is that you configured your project to write classes to the classes-directory (bin is the default).
The "cannot delete" message appears mainly on Windows systems if there is another process keeping a lock on the directory or files within. The classic reason for that is that you currently run the application or that you have an Explorer window open that shows the content of this directory. Closing the application/Explorer window normally solves the problem. Sometimes the lock keeps staying. A way to find the culprit is using Sysinternal's ProcessExplorer. It allows you to search for it by using Find->Find handle or DLL. The result can be clicked on and you can even forcefully close that entry, releasing the lock (some programs don't like that but I never had any problems doing that).
But sometimes it's actually necessary to reboot the system if you can't get rid off the lock otherwise.
I am just starting off in Java and trying to follow buckythenewboston on you tube. I have java and eclipse neon both downloaded correctly. However, when I create a new project like he showed in the video, I click finish and nothing shows up, in the video it showed on the side there should be a like java symbol with the name of the project I created. Well nothing happens it is blank on my screen. I tried opening a file from the work space in my C drive and that doesn't work either as nothing shows up so I can create a class. I know there is a couple of forum questions with similar title but that is different I think as they can at least get code in where I can't. Any explanation as what is going on would be helpful. I also tried to go to file-import-existing project... but the existing project part isn't an option.
Thanks in advance.
go into your workspace directory and delete .metadata folder, then restart eclipse
Close all perspectives and open a new one, the one you like.
Yesterday, i've Closed Eclipse & then Turned Off The Computer, Now it's appear that a Crash has occured, when i started Eclipse again, Project List was empty So i've imported the Projects Again,
Problem : a Java Files is now corrupted, the file size seem correct, i can Open the File but the File is filed with "NUL" when i open it with a Text Editor & is empty when i open it in Eclipse,
I've tried to use the History Features of eclipse but there is No Any Backup in the .History Folder, only empty folders,
Is there any way to recover this Damaged .Java File ?
Thanks
if you use SVN, or other version controls, or ever back up your PC, you could look at restoring it from there. However, by your description, this doesnt seem likely.
Noting from your comments you have tried a system restore.. System restore points and backing up your PC are two different things.
Right click on your file -> Properties.
The click "Previous Versions" along the top.
It may say "There are no previous versions available", or may offer a restore choice.
Perhaps if you had previously deployed the project you can get at the class file and de-compile the class back to code but that may still result in some loss. Also just try doing a search on your machine for that file name perhaps it was backed up by you at an earlier time that you forgot about.
Eclipse crashed, works space now can't be opened, and importing the projects wont work either. That about explains it all right there.
Creating a new workspace, I still cant import any of the projects. It acts like it is about to, but then nothing.
Any ideas? Not all of the projects are on svn.
Here are some of the errors i see in the crash reports
The file has been changed on disk, and it now contains invalid information. The project will not function properly until the description file is restored to a valid state.
Premature end of file.
does not exist
and the message that appeared before it all crashed and burned
java.lang.OutOfMemoryError: Java heap space
NEW INFO
every single file in every single on of my projects, now has a size of 0kb. all the files exist, but every .png, .jpg .class .xml is empty with a size of 0kb
try editing eclipse.ini file.
put put -Xms512m -Xmx1024m
then try to restart eclipse it should work!!
Can you install a second instance of Eclipse and point it at the workspace? I've done this with the ADT on my mac before.
I have had similar trouble with corrupted workspaces in the past. They don't load even in a fresh copy of Eclipse.
What has helped me is deleting/renaming file myWorkspace/.metadata/.plugins/org.eclipse.core.resources/.snap
Sometimes also deleting *.snap files.
Please backup the whole workspace (including projects) first!
Close eclipse.
Copy your wanted project files (ie. workspace\Homework) to a temp directory, not the entire workspace.
Start eclipse.
Create a new workspace (you stated you could).
Delete the old workspace (might be able to this before previous step).
Import project from temp directory into new workspace.
Save!
Close and re-open eclipse.
The "NEW INFO" section makes it look like you are out of disk space on the system. Have you checked?
I have a massive problem, and I can't find a single thread out there that specifies this problem.
I'd been watching Google IO, and the Android Studio was mentioned, I downloaded it, installed it, and opened my project into there, as I wanted to try out some of the new features, Fine and dandy, (on a separate note, I love Android Studio)
It was working before in Eclipse, and I literally changed nothing about my project, I was only looking around at the device preview features and stuff, didn't touch any piece of code what so ever, just having a look at some of the features..
Went back to eclipse, and my generated folder only showed R in, no tree structure of R or anything, just R.java, and R inside it, and everything in my classes were underlined, but it wasn't the R that was, it was the value after it (ie. Cannot find R.layout.main) which I thought was really weird, so I cleaned my project, and it disappeared, I now have a project without a generated R.java file.
To note; I changed nothing about my project, all my XML files were absolutely fine, i've tried every trick I can find on StackOverFlow and other websites (removing some of the XML's, painstakingly going over my 15 layout files character by character for an hour, removing imports, build paths, etc) and nothing works, and i've been trying to do this for almost 3 hours now.. Does anyone have any experience doing this, or any solution?
in the Gen section of your project, try to delete the R.java
It should re-generate, I had some issues like that in the past..
Give it go.
The R file may not be generated due to errors in the project.
Check your xml files in res folder. Also read Error log of the eclipse.
(Windows -> Show View -> Problems)
The best way is copy R.java from another project and Past it in gen
And then Delete R.java file then the system will recreate R.java back for you..........