Matlab 2015B freezing on startup screen

Matlab 2015B freezes on the startup screen with a fresh install of Ubuntu 14.04. A week ago it worked with 14.04 and Matlab 2015A. I have started it using the code "matlab -nodesktop" and I get the following errors:

Can't reload '/usr/local/MATLAB/R2015b/bin/glnxa64/libmwhgbuiltins.so'

Error in connector.internal.autostart.run

Error in connector.internal.autostart.run >> Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: com.mathworks.services.settings.SettingValidationException: IMsgIDException for "matlab.workingfolder.LastFolderPath": Internal Error: No write permission on directory /home/tomas/.matlab/R2015b/temp0x3730x208c. Details: fl:filesystem:AccessDenied. at com.mathworks.mlwidgets.prefs.InitialWorkingFolder.setStringSettingValue(InitialWorkingFolder.java:52) at com.mathworks.mlwidgets.prefs.InitialWorkingFolder.access$000(InitialWorkingFolder.java:15)...(more)

Any help would be greatly appreciated. I activated the product using my user name tomas and the file libmwhgbuiltins.so has read-only access by all other users. Thank you in advance.

[amir s]

This is a permission issue. As the error says "No write permission on directory /home/tomas/.matlab/R2015b/temp0x3730x208c". Changing the permission for that folder and the file solves the problem. Maybe you need to change the permission using sudo command. That's what solved my same problem.