I got invited to Appcelerator Studio 4, and when i try to launch Appcelerator Studio from Ubuntu 15.04, i get this error:
simion@simion-U31SG:~$ ./opt/Appcelerator_Studio/AppceleratorStudio
Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
sudo: a password is required
Exception in thread "Installing dependencies" java.lang.NullPointerException
at com.appcelerator.titanium.rcp.handlers.TitaniumSplashHandler$6.run(TitaniumSplashHandler.java:407)
It remains stuck like this forever.