I am trying to run my projects in Eclipse, whenever I used to run any program a window appear and it shows that project is launching and building.
This never happened before. In fact, it was working very okay an hour before but now, even for old created project it showing this and not moving ahead.
Is this a general thing happened in eclipse as I haven't seen this before.
I want to get out of this to move ahead and to run the project.
The Launcher looks like this :
The progress Bar is also not moving ahead if it's building the project.
It's definitely normal to see; there's times I'll see it two or three times in a day. It shows up if the launching process is waiting on anything or is expected to take more than a couple seconds.
In your case, it seems to be stuck on "Building workspace," which happens when you open Eclipse. The more projects you have in Eclipse and the more sections of workspace you have (groups of tabs), the longer it takes to build your workspace. So I'm going to wager a guess that you tried to launch a project within the first minute or two of Eclipse being open. Am I right?
If that's the case, just wait a bit, and watch the lower right corner (where it says "Launching Clock" in your screenshot). When it shows it's stopped trying to do start-up tasks, you should be good to go.
If Eclsipse had been open for a while, then perhaps Eclipse is busy with other junk and calling it "Building workspace." Maybe it's having a hard time understanding what to do with one of your projects, so check for compiler errors. You can also try to "clean" your projects (Project -> Clean).
If that also fails...hmmm...I'm sure there's other options before you get to this point, but you might need to re-install Eclipse. I suppose there's a chance that in the deep dark corners of Eclipse, a file was corrupted, causing Eclipse to hang on a task that requires a missing/bad file. But before you go this far, make you get second or third opinions, because I might be missing some simpler cause of your Eclipse hanging than what I've listed already.
I found the solution.
I don't know what was the error and why it was displaying the Launcher window and stuck there. But, I forcefully stopped eclipse using Task Manager and then restarted it.
When restarted it took few minutes (more than usual time) and I was done with it. now it's working okay.
Re-installation of Eclipse also worked but i tried this before re-installing or upgrading.
Related
This was me. With the "Gradle STS" Eclipse plugin. In the end I managed to find an answer. IIRC, you went Run --> External tools... something something. Haven't looked at these things for a month or two so I've forgotten.
I recently reinstalled Eclipse, and was aware that we're told "Gradle STS" is on the way out and really quite contemptible... all the people at the bleeding edge are switching to Buildship like crazy.
Fair enough, OK, I shall yield to this intense pressure to drop Gradle STS ... but how might I launch a task (even the last task) not having to use the mouse? I HATE... :-( being forced to use the mouse.
"Workaround" (hardly brilliant): Ctrl-F7 will take you from window to window (Ctrl-F6 just navigates through editors).
So you can arrange your Gradle Tasks window in such a way that you can still see your console window ... and then Ctrl-F7 to where you want to go.
"Workaround" (slightly better): Ctrl-Shift-L twice to get to the "customise hotkey" dialog. Give a key binding to "Show View (Gradle Tasks)".
Would welcome any answers which involve use of menus...
I would like to take a step backwards opening eclipse without it automatically opening the source files which were last open, nor the projects which were last loaded, I have reason to believe this might clear it all up.
Motivation being that as of a forced quit of eclipse, after it had gone stuck after some project changes, my eclipse Luna is no longer able to start without getting hung up again.
How may I accomplish that?
It's important to me not to lose my settings such as syntax highlighting and stuff, while performing the salvation... and whereas I am pretty certain I could locate my workspace directory on disk, would be nice finding where does eclipse keep the pointer to it, just to make sure I'll be tinkering with the right workspace, if needed..
I guess I could call it "starting eclipse in safe mode" :)
I have had this problems for a couple of times but usually could solve it by an update. However, this fix does not work for me anymore.
Actually, two problems here:
The minor one: I have osX 10.8.3 and Eclipse Juno (M20130204-1200) installed. Since a good amount of time, it takes eclipse ~ 4-5 minutes to start up for the first time after the system start. Once it was closed and is re-opend again, it starts up quick. I think this problem came since apple started to mess around with the JRE? Does anybody also experienced this delay? Could it be that one of the installed plugins checks for updates and causes the delay?
The major one: after eclipse is fully up & running, I can not open .py files anymore. When I open my pydev project (btw. pydev 2.7.3), eclipse freezes and I need to kill the whole thing and restart. -> I can not use it for python coding anymore, which is my primary task...
Suggestions? Re-install eclipse maybe?
Thank you for suggestions,
El
Can't really comment on #1, but for #2, can you try attaching jvisualvm to see what's going on there? (and create a thread-dump and post it somewhere so that I can take a look at it).
I'd ask you to create a bug-report for that, but the new tracker is still not up (I hope I'm able to put it up right after the funding at http://igg.me/at/liclipse is finished).
The problem was resolved by following these steps. They essentially disable one
JRE.http://support.apple.com/kb/HT5559?viewlocale=en_US
Eclipse has begun to make random changes to my code in real-time and I have no idea why.
This can start at any moment, lets take today for an example.
I was building a layout for a highscores screen for my app and all of a sudden when I click around my XML code, Eclipse starts removing whole rows of code. I click the deleted row and Eclipse exchanges the code of another row with code from elsewhere in my XML file.
This continues until I restart Eclipse, but start again a few minutes after restart.
Is anyone else experiencing this totaly messed up bug? Is there a solution or should I learn to live with it?
I've also seen problems with the Android Eclipse plugin.
Go into Preferences > Android > Editors and try restoring defaults, or unchecking all the auto-anything options.
I'm using PyDev in Eclipse as my Python editor. It's fine in terms of feature set. Everything works fine except for one very annoying thing:
Code completion itself works fast. When I press Alt+Space, the window pops out almost instantly and all the options are there. The option at the top is selected. Then comes the trouble. The detailed description won't appear until about 5-10 seconds. All this time CPU is working at maximum load and the interface is not responding. All the processor is consumed by the Eclipse Java process (the spawned Python process seems idle). Then a yellow window pops up, and all it contains is just a Python code of a selected function/variable. All consecutive details are displayed instantly. The procedure repeats when I close the completion window (for example by accepting one of the options and asking for completion again). This drives me crazy.
I've tried so far:
creating a whole new workspace,
creating an Eclipse/PyDev project from scratch,
tweaking JVM to make sure it has loads of memory,
making sure the right JVM is chosen (the latest Oracle JVM available),
making sure Python process communicates freely with the Java instance (I read about possible problems with that, but it seems not to be the issue).
making sure all the installed plugins are up to date.
The version I use is Eclipse Helios, because the last time I checked certain extensions weren't yet ported to the latest one.
Has anyone observed a similar issue? Was anyone able to get around it? General ideas on how to debug it and file a sensible bug report possibly? Other things worth checking for.
Any workaround less drastic than turning completion off completly?
Thanks!
EDIT:
I've also noticed a problem with a similar popup window in HTML/CSS editor. It looked somewhat similar (a yellow window, with some text inside) and it also took ages to display. Don't really know if that is related, but could be.
EDIT(2):
Ok, No I've started with a fresh install of the newest Eclipse Indigo, without any additional plugins apart from PyDev and the issue remains. Seems like I'll have to look for a new IDE.
What version of Java are you using?
If you are on Windows 7, later versions of Java (I think 6+) will default to IPv6.
This is probably causing the problem as Python maybe wanting IPv4.
Anyway, since I had this problem I tried disabling
PyLint
Code Analysis
but it was still hanging.
Pal's answer about "ipv4 utilization" triggered my memory about another problem I had solved by "preferring" IPv4.
See http://docs.oracle.com/javase/1.4.2/docs/guide/net/ipv6_guide/
What you want to do is to edit your eclipse.ini and add "-Djava.net.preferIPv4Stack=true" in the vmargs section
-startup
plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar
...
-vmargs
-...
-Djava.net.preferIPv4Stack=true
...
I no longer get hangs.
Is there any chance you can provide the code that's making that happen (and add it to a bug report see: http://pydev.org/about.html for links)?
I use PyDev daily with some very large projects and don't have that problem, so, it may be some specific construct or scenario in your code -- or maybe you just haven't given Eclipse enough memory (which would make the garbage collector work much more), in which case, take a look at: What are the best JVM settings for Eclipse? (in specific, raise your -Xmx flag, although you can probably use the other tips there too).
If you can't provide a reproducible scenario, the other choice would be getting a profiler (i.e.: YourKit java profiler has a 15 days free which would help in this case), running that use-case in the profiler and passing a snapshot of what's happening in this situation (if that's the case, please open a bug report at pydev.org and I can help you there).
I got this from pydev.org FAQs and it works fine for me.
When I do a code-completion, PyDev hangs, what can I do?
PyDev does most of its things in the java side, but some information can only be gotten from the python side (mainly builtins), so, in order to get that info, PyDev creates a shell and communicates with it through sockets.
The main problems when that happens are:
There's a firewall blocking the communication to the shell
In Linux, some kernels do not allow ipv4 utilization, which may make PyDev fail.
To enable it, do: echo 0 > /proc/sys/net/ipv6/bindv6only
The timeout to connect is too smal.
It depends upon the "Timeout to connect to shell" in the code-completion preferences (window > preferences > PyDev > Code completion)
If nothing works, please report a bug (also, check if there is anything on the error log (window > show view > PDE Runtime > Error log) and on the eclipse '.log', which is located at the .metadata folder of the workspace location.