CASA Error Messages

CASA Error Messages and what they mean

WARN	listobs::utils::verify	Argument vis failed to verify.
WARN	listobs::utils::verify	Some arguments failed to verify!

Tasks where it may appear: any Explanation: The input file for the vis parameter is either misspelled or the file does not exist in the current directory

SEVERE Calibrater::solve Caught exception: ArrayBase::validateConformance shape [2] differs from [1]
SEVERE Exception Reported: Error in Calibrater::solve.
SEVERE uvcontsub::::casa Error in uvcontsub: Error in Calibrater::solve.

Tasks where it may appear:' calibration tasks Explanation: ???

SyntaxError: non-keyword arg after keyword arg (<ipython console>, line 1)

Tasks where it may appear: any Explanation: ???