Arduino IDE freezes in Ubuntu 9.04

Forum 2005-2010 (read only) Software Troubleshooting
1

the Arduino IDE is now freezing for me after an update to Ubuntu 9.04. The display doesn't refresh and in the terminal I get the following message several times. I've tried IDE versions 013 and 015 with no luck.

check_group_uucp(): error testing lock file creation Error details:Permission deniedcheck_lock_status: No permission to create lock file.
please see: How can I use Lock Files with rxtx? in INSTALL

Can anyone help please?

Thanks

2

Are you using the 32 or 64 bit version of Ubuntu? Do you have the rxtx package installed? Arduino comes with a version that doesn't use lock files, but it's possible that the system one does (and the permissions on the lock directory are wrong).

3

thanks for the reply. I did a complete removal of librxtx and reinstall and that removed the errors, but the IDE is still frozen at startup. I'm using 32-bit

4

Which java are you using? It needs to be the one from sun.

sudo update-alternatives --config java

5

thanks! that fixed it. It seems updating to jaunty changed my default java :frowning: