There Are No Dungeons in My world

Please attach the crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt), otherwise we can not diagnose this issue.
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But it is not a crash problem

You should comment your seed in MC-129767 and have @unknown run tests on it.

Try /locate
Edit: Sorry That does not work.

@unknown, /locate does not work on dungeons (MC-107829).

Ok my mistake thank you Asteraoth.

Please provide the seed of this world.