Error running lunch

ERROR: The Compose file ‘./docker-compose.yml’ is invalid because:
services.core.ports is invalid: Port ranges don’t match in length
Build of docker images failed. Exiting.
after following the steps described in Setting up the Testnet step 5

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Welcome @manolakis to the forum.

The new beta developer release is out. Refer to this forum post.

The previous Docker release that you mention above has been deprecated and archived.