Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not load SWT library

Question

What is the reason for the following error I am having:

Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not load SWT library.

I am using Eclipse 3.5 SE on Ubuntu 9.04 Jaunty.

How can I resolve this error?

Answer 1

I had same problem with Oracle Java 7 and Eclipse on 32-bit system.

libswt-gtk-3.6-java and libswt-gtk-3.6-jni were already installed. What helped:

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

Maybe this can be done reconfiguring Java alternatives or what.

Answer 2

I believe Mikolaj Lechtanski's workaround is more elegant.

create or edit /etc/eclipse.ini

Paste inside:

-vmargs
-Djava.library.path=/usr/lib/jni

exit

make sure the file is readable:

sudo chmod 755 /etc/eclipse.ini

Answer 3

This means the native libraries could not be found.
Either you have 32-bit libraries and you are running on a 64-bit machine or vice-versa.
also make sure you have the -Djava.library.path= set properly

See this page on how to run outside of eclipse