I am using netbeans 8.0.1 on Kubuntu (Ubuntu 14.04.1 LTS) and I just installed some netbeans updates due to having a popup telling me to. When I restarted netbeans, it wouldn't launch anymore. If I try to start it over the command line I get this Error:
Error: Could not find or load main class org.netbeans.Main
Is there a way to fix it without reinstalling it? Reconfiguring will take ages.
Just a comment about this:
Is there a way to fix it without reinstalling it? Reconfiguring will take ages.
The IDE configs are stored at ~/.netbeans/version dir, so, uless you have changed things in installation_path/etc/netbeans.conf (like netbeans_jdkhome and system properties netbeans_default_options), you should be safe to reinstall it with no problem. And, of course, you can always make a copy of the current installation.
Related
I've installed Eclipse Neon.3 on my windows 7 machine, after the install process has finished, the installer has an option to 'launch now', which I do and the IDE boots up and works as expected.
However when I close eclipse and then reopen it, I get a crash which prevents it from booting up (sorry for this being a picture, but there doesn't seem to be an easy way to copy the text):
The version I've installed is Release 4.6.3, and the build ID is 20170314. I've installed and removed it 3 times and observed the same behaviour each time. I've tried doing a reset between boots and installs. I've also tried inspecting my environment variables, which look like this:
JAVA_HOME:C:\Program Files\Java\jdk1.8.0_91
PATH: %PATH%;%JAVA_HOME%\jre\bin
Is this a known issue, or do I have something wrong in my setup? Prior to this I discovered 4 versions of the jre/jdk on my machine, and two versions of eclipse. I think I have correctly removed all but the one referenced from my java home, and I entirely removed eclipse and downloaded the latest version (neon.3).
I've fixed the issue, and whilst I'm still not entirely sure why it was a problem, here is how I fixed it.
I opened a terminal and ran 'java -version' (I should have done this first). It was failing to find java.exe, despite the bin folder being on the path. Running this revealed that it was actually calling a shortcut to java.exe found in 'c /programdata/oracle/java/javapath/' which pointed to a now non existent version of java.
So long story short, if you have a similar problem, check if you have shortcuts in the folder 'c /programdata/oracle/java/javapath/java.exe' and ensure they point to the correct program.
I recently decided to start trying Android app development, so I downloaded the Java SE Development Kit 8 (x86) for Windows (I got Windows 8 64bit, but my guide recommends getting the 32bit one), the Android SDK, and the Eclipse IDE for Java Developers (x86).
However, my Eclipse won't launch when I double click eclipse.exe! Instead, I get the following error message:
I tried adding Java to my Path variable in my Environment variables as suggested in some of the solutions I looked up, but it still doesn't launch properly.
Anyone know what else I can try? Also, if possible, please do not use super-technical vocabulary as I'm new to these kinds of stuff and will not understand you...thank you haha :D
I had the same issue and was trying to install different versions of JDK: 1.6, 1.7, 1.8.
It didn't help much.
The problem was resolved when I changed PATH variable by removing
C:\ProgramData\Oracle\Java\javapath;
In command prompt I also ran following commands:
set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_25
set PATH=C:\Program Files\Java\jdk1.8.0_25\bin;%PATH%
But I think the most important was to remove C:\ProgramData\Oracle\Java\javapath; from the PATH.
I know exactly how to solve your problem. Go to search and put in environment, a prompt will come up and ask you to "Edit environmental variables for your account" click that and a window will pop up. There will be the current paths which are running on the top (you should have your JDK version running, mine is 1.8) and on the bottom part there will be paths to choose from. Select (on the bottom part) the java path and delete it, then click okay. This should work.
If it didn't work, You may also add a new path to the java bin folder which worked for me.
Here is an alternative:
As described here, make sure that you have the -vm option set in your eclipse.ini file.
It must be an absolute path and on 2 separate lines:
-vm
<Absolute Path>\javaw.exe
Save your .ini and relaunch Eclipse
One line answer, remove 'C:\ProgramData\Oracle\Java\javapath;' from your path variable. It will start to work.
Most errors with starting eclipse happen due to multiple JRE or JDK version which makes the installer go nuts.
Solution: Go to Control Panel -> Uninstall Programs
If you're running 64-bit java, then uninstall all Java without the 64bit indicator. If 32-bit, then uninstall all that have 64-bit
It works like magic!
What worked for me was having installed adoptopenjdk11 using Chocolatey package manager:
choco install adoptopenjdk11
I have upgraded to Ubuntu 15.04 from 14.10 and my eclipse Luna keep crashing abruptly. Same was happening in Ubuntu14.10. I have tried everything but nothing seems to work.
It just shuts down, when I try to write something, or sometimes when opening some file and sometimes keep working for and hour without creating any problem.
also added -Dorg.eclipse.swt.browser.DefaultType=mozilla in eclipse.ini file but no solution.
Please suggest some solution. This is very - 2 irritating. . I am unable to do any work
I had the same error. My solution was:
sudo pipelight-plugin --disable silverlight
I found the information here: Ask Ubuntu
Whenever i start system eclipse is being opened by default even i don't need it.Every time i am killing eclipse process after starting the system.What went wrong with my eclipse ? Please help me.I am using fedora 12 operating system.
Assuming you are using windows, I think your eclipse.exe has been added to startup path of your system.
Go to Start->AllPrograms->Startup then delete eclipse.exe from there.
I hope it solves your problem.
Win: run->msconfig->startup->uncheck eclipe.exe
Linux: remove Eclipse from /etc/rc.d/rc.local
I'm assuming there's a session-manager running that is restoring a previously saved session that included Eclipse. Alas, I don't know anything about Fedora, but perhaps this new keyword helps you in your search.
There should be a menu item somewhere that allows you to inspect/edit the session settings.
I'm having a problem with eclipse galileo on ubuntu 64-bit system. when ever i open it the splash scree turns gray but keeps loading and then when eclipse opens it shows the secure storage password request and hangs. I dont know what could be wrong, it used to work fine before, if you have or had the same problem please tell me what to do
I have had this happen on Galileo (3.5) and Helios (3.6).
If you delete .eclipse you will lose all software installed through the Help | Install New Software menu option.
It is enough to delete the file ~/.eclipse/org.eclipse.equinox.security/secure_storage
Try clean $HOME$/.eclipse directory.
Its better to just rename at first.
See what happens
This happens to me whenever I shutdown eclipse with the history tab open.
While not the best solution, to solve it I start eclipse with sudo. I let it finish loading, then select a different tab than history. I Shutdown eclipse, then I recursively change the owner of the files in .metadata back to my main user.
In case you need the command: (in my case I run this from /home/wally/workspace)
sudo chown -R wally:wally .metadata
As far as I can tell, there's some race condition going on.
(also, it's likely that you won't use exactly "wally:wally" but "your username:your group)
Try this:
export GDK_NATIVE_WINDOWS=true
then run eclipse from command line from the same terminal window.
I would suggest removing openjdk from synaptic and install sun java. Once you do that , use "sudo update-java-alternatives --set java-6-sun" to use sun-java as the default JRE.
Eclipse used to work really slow for me, and this method worked. Maybe it helps you too.