ErrorMessage - Message from task error

Description

If an error occurs during the task evaluation, ErrorMessage contains the message property of the MException thrown.

Characteristics

Usage	Task object
Read-only	Always
Data type	String

Values

ErrorMessage is empty before an attempt to run a task, and remains empty if the evaluation of a task object function does not produce an error or if the error did not provide a message. ErrorMessage has the same value as the message property of the task's Error.

When using a job manager, ErrorMessage indicates if a worker has crashed during task execution, but when using a different scheduler ErrorMessage does not indicate a crash.

Examples

Retrieve the error message from a task object.

jm = findResource('scheduler','type','local');
j = createJob(jm);
a = [1 2 3 4]; % Note: matrix not square.
t = createTask(j, @inv, 1, {a});
submit(j)
waitForState(j)
e_msg = get(t,'ErrorMessage')
e_msg =
Matrix must be square.

See Also

Properties

Error, ErrorIdentifier, Function

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