[MCL-2112] Can't launch any version of Minecraft if game directory is changed

I created a new profile in order to play in an older version of Minecraft and found that I couldn't launch any version from alpha to 1.7.4 (current).

All I did was change the game directory in the profile settings to <default path>/minecraft-alpha and select an older version from the dropdown list.

What happens:

Alpha - black screen
Beta - blank screen
recent versions - nothing (application icon appears in dock but no window appears)

Additionally, I saw that it downloaded the older versions to <default path>/<default game directory> and that <default path>/minecraft-alpha contained only logs/latest.log and output-client.log.

Comments 2

Hawk J 2014-01-11T23:45:45Z

I can no longer play any version, even with the default profile. I have tried deleting the appropriate folders in minecraft/versions/ without success. I cannot play this game anymore.

kumasasa 2014-01-12T21:48:58Z

Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.

If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".