MinecraftDev Launcher crashes when you press play.
Error Message:
Client> Invalid memory access of location 0x0 rip=0x0
Client>
Game ended with bad state (exit code 139)
Deleting /Users/(name)/Library/Application Support/minecraft/versions/13w18c/13w18c-natives-1368168644194942000
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[media]

Maybe my OS version is not supported?

Error Report and Crash Report

Duplicate of MCL-90

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