having problems with the launcher, it just gets stuck on the Mojang screen :/

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder].

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Possible duplicate of MCL-6022

Duplicate of MCL-6022, fixed by using old launcher in IRC