[PE Dry Run]Add loan command does not tell invalid parameter

[nus-se-bot]

When trying to add a new loan for a bike, in case of invalid parameter, the error message displayed does not inform which parameter is invalid or entered wrongly.

Invalid name? or wrong usage of "p/" or "n/"?

Invalid NRIC?

Unsure what is the invalid parameter here....

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Reported by: @yogtew
Severity: High

_{[original: nus-cs2103-AY1819S1/pe-dry-run#394]}

[OrangeJuice7]

Thank you for reporting this.

The app reports that the command format is invalid because you did not specify all the parameters required by the command. The prefix for the loan rate parameter is lr/, not r/, thus the app did not recognize that as a valid parameter and thus valid command format.

Once all the required parameter prefixes are present and correct, the app will then check for the validity of the individual parameters and give specific feedback. We will note this in the UG for future versions. Thank you very much!