Eclipse cannot load SWT libraries

Question

Every time I try to open Eclipse in Ubuntu 12.04 I get an Unsatisfied Link Error and it will not open. I have recently installed the java JDK and Android SDK, could this be the problem? I followed this tutorial.

Here is the log info:

!SESSION 2012-04-15 21:05:46.902 -----------------------------------------------
eclipse.buildId=I20110613-1736
java.version=1.7.0
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB
Command-line arguments:  -os linux -ws gtk -arch x86_64

!ENTRY org.eclipse.osgi 4 0 2012-04-15 21:05:47.885
!MESSAGE Application error
!STACK 1
java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons: 
no swt-gtk-3740 in java.library.path
no swt-gtk in java.library.path
Can't load library: /home/tom/.swt/lib/linux/x86_64/libswt-gtk-3740.so
Can't load library: /home/tom/.swt/lib/linux/x86_64/libswt-gtk.so

at org.eclipse.swt.internal.Library.loadLibrary(Library.java:285)
at org.eclipse.swt.internal.Library.loadLibrary(Library.java:194)
at org.eclipse.swt.internal.C.<clinit>(C.java:21)
at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:63)
at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:54)
at org.eclipse.swt.widgets.Display.<clinit>(Display.java:132)
at org.eclipse.ui.internal.Workbench.createDisplay(Workbench.java:695)
at org.eclipse.ui.PlatformUI.createDisplay(PlatformUI.java:161)
at org.eclipse.ui.internal.ide.application.IDEApplication.createDisplay(IDEApplication.java:153)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:95)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

I have tried uninstalling and reinstalling, and removing the ~/.eclipse directory but it still doesn't work

Answer 1

For Windows Subsystem for Linux (WSL) you'll need

apt install libswt-gtk-4-jni

If you don't have an OpenJDK 8 you'll also need

apt install openjdk-8-jdk

Answer 2

I installed the JDK 32 bit because of that I am getting the errors. After installing JDK 64 bit http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html jdk-8u131-linux-x64.tar.gz(please download the 64 version) and download 64 bit "eclipse-inst-linux64.tar.gz".

Answer 3

A possibly more generic method is to:

• install non-headless version of the openjdk,
• install, run and close eclipse.
• uninstall the openjdk
• install oracle's JDK

Answer 4

On redhat7 :

yum install gtk2 libXtst xorg-x11-fonts-Type1

did the job, because of a swt dependency.

found here

Answer 5

In my case, I was missing the /usr/lib/jni directory entirely. Fixed by

sudo apt-get install libswt-gtk-3-jni libswt-gtk-3-java

No need to symlink afterwards. Eclipse started normally.

Answer 6

I came across this error when tried to start 32-bit build of Eclipse under 64-bit linux. The problem was solved after installing ia32-libs package.

Answer 7

Simply specify the path to the libraries:

echo "-Djava.library.path=/usr/lib/jni/" >> /etc/eclipse.ini

Answer 8

I agree with Scott, what he listed worked. However just running it from any directory did not work. I had to cd to the /home/*/.swt/lib/linux/x86_64/ 0 files

directory first and then run the link command:

For 32 bit:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86/

And on Ubuntu 12.04 64 bit:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86_64/

Answer 9

Please make sure that your home partition is mounted with executable permissions. That is the default, but if you happen to mount it without exec option, you will get this error.

Answer 10

If you start eclipse using oracle java, then eclipse might fail in finding native libraries like SWT or SVN libraries. The SWT-JNI libraries are located in /usr/lib/jni/ and the SVN-JNI libraries are located in /usr/lib/x86_64-linux-gnu/jni/.

Instead of starting eclipse with the command

eclipse

you can use the command

env LD_LIBRARY_PATH=/usr/lib/jni/:/usr/lib/x86_64-linux-gnu/jni/:$LD_LIBRARY_PATH eclipse

to pass the environment variable LD_LIBRARY_PATH to eclipse. Eclipse will find the native libraries and will run properly.

Answer 11

on my Ubuntu 12.04 32 bit. I edit the command to:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86/

And on Ubuntu 12.04 64 bit try:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86_64/

Answer 12

SOLVED:

Because I had installed the Oracle Java 7 it had changed the default Java to Oracle Java 7, however it needed to be the Open JDK.

To fix, open up terminal and type

sudo update-alternatives --config java

This brings up a list of the different types of Java. Simply select the Open JDK.

Answer 13

Can't load library: /home/tom/.swt/lib/linux/x86_64/libswt-gtk-3740.so
Can't load library: /home/tom/.swt/lib/linux/x86_64/libswt-gtk.so

looks like the libraries should be at .swt/lib/linux/x86_64/ if there are not there you can try this command:

locate  libswt-gtk.so

this should find the libraries copy the entire directory to /home/tom/.swt/lib/linux/x86_64