MC_Open_Launcher.jar won't start

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http://askubuntu.com – Help me, it won't start, even putting the file as a program even opening it with Java 7 & 6 Quote: Hi guys, uhm i have the problem now, ubuntu won't start Cracked 1.6+ Minecraft Launcher, because i wanted to play 1.6+ with my friends right now inside a popular server. But it won't start as i keep clicking it, even re-installing it. I did even touch to change directory which folder to save itself files, as idk i just clicked an button called "Change Folder" or "Change Directory" or something like that. I even tried other Cracked MC Launcher, almost all of them are .exe an (HowTos)