CWTKV0140E The ''0'' priorityDefinition value is not a valid variable or an integer greater than or equal to zero.
Explanation
The value of priorityDefinition must contain a valid variable (starting with '%' and ending with '%') or an integer that is greater than or equal to zero.
User response
Insert a valid variable or an integer that is greater than or equal to zero. You can find this setting on the "Details" page in the properties view of the task settings. Press the properties pages button in the top section of the canvas. Make sure to provide a valid value.