WARN cli.LlapStatusServiceDriver: Watch mode enabled and got YARN error. Retrying..LLAP status unknown

[#1]

After setting up llap I am not able to start HIVESERVER2 INTERACTIVE and its throwing below errors.

WARN cli.LlapStatusServiceDriver: Watch mode enabled and got YARN error. Retrying..
LLAP status unknown
--------------------------------------------------------------------------------
WARN cli.LlapStatusServiceDriver: Watch mode enabled and got YARN error. Retrying..
WARN cli.LlapStatusServiceDriver: Watch mode enabled and got YARN error. Retrying..
WARN cli.LlapStatusServiceDriver: Watch mode enabled and got YARN error. Retrying..

    raise Fail("Skipping START of Hive Server Interactive since LLAP app couldn't be STARTED.")
resource_management.core.exceptions.Fail: Skipping START of Hive Server Interactive since LLAP app couldn't be STARTED.

[#2]

I have the same issue. Any ideas? It is saying that certain params are not set, but they are set in Ambari. Have restarted Ambari and the Hive node, but no results.