That's a warning not an error. Judging from the variable names, they are being called in a catch and not being used. For example:
Originally Posted by slp13at420
Can be changed to:
if you aren't going to use the said variable(s), OR:
if you are going to display the error message and use the said variable(s). Otherwise, first option should be used.
catch (Exception ex)
Anyway, looking good since OP posted this thread!