The snapshot won't start

Please help

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However, this issue has been closed as Incomplete.

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i have edited it

Are you using the new launcher or the old one?

The new one

After the issue occurs, please attach the complete game output. If it doesn't appear, make sure that "Open output log when the game starts" is enabled in the launcher settings.

Ok

Not right now

3821 debugs6 infos
10:46:11 launcher Preparing to launch minecraft client for 17w13a
10:46:12 launcher Checking installations.
10:46:12 launcher Minecraft client 17w13a is ready to start.
10:46:12 launcher Starting!
10:46:12 launcher Using default game log configuration client-1.7.xml (outputs XML)
10:46:14 bgl Setting user: mr_redstone9990
does not change

Thank you for your report!
However, this issue has been closed as a Duplicate of MCL-6022.

It has been linked to this report. If you have additional information, please add it to that report.
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