This is a list of errors you may encounter while using the APS.net Interface and suggested actions for fixing the problem

Error Message: Zero Resource Requirements specified for operation “10″. At least one is needed.

• Explanation:  Each Operation needs to have at least one Resource Requirement indicating the Resource(s) needed to perform the Operation.
• Resolution:  This problem is often encountered due to the OperationExternalId being specified in the Interface Settings without converting it to a STRING data type.  As a result, the Operations do not sort properly and the system thinks there are no Resource Requirements.  Try specifying a conversion expression for the Operation ExternalId field in the Operation, Resource Requirement, Activity, and Required Capabilities Mappings.  For example, specify STR(OperationId) or CONVERT(OperationId,varchar) depending on the required syntax for your database system. a
• 0001: This is usually caused when a translation is made to a string in APS that uses the String.Format function and includes curly braces to include data in the  string. For example, this format string “A{0} B{1}” would insert two data parameters – one after the A and one after the B. If the format string were translated incorrectly to somethig like this: “A{0} B” then an error would results because the software is expecting two sets of curly braces but only received one. The fix for this is to fix the translated string.
• 0002: The activity was not rescheduled to the exact drop point due to a constraint. In the event that a constraint is encountered, the activity is scheduled to start as soon as possible after the drop point where all constraints are satisfied.