My Minecraft open but then closes immediately after

Please attach the crash report to this issue. The crash report will be located in .minecraft\crash-reports\crash-<DATE>-client.txt.
Please refer to the following page for instructions on how to get to the .minecraft folder: http://hopper.minecraft.net/help/finding-minecraft-data-folder/
If you lack a crash report relating to this issue, please attach your entire 'Launcher Log' and 'Game Output' tabs' contents.

Please also note that for technical support issues, you should refer to the technical support resources.

This ticket is incomplete. Please review the guidelines before reporting issues.
For technical support please use the Mojang Support Center.

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