Resource Rate is invalid: For Work resources, the rate must be a numeric value between {0} and {1} that may be followed by ...

Resource Rate is invalid:    For Work resources, the rate must be a numeric value between {0} and {1} that may be followed by a slash (/) and the abbreviation for the time period, for example "10", "10/h" or "$10/h" represent the same value.    For Material resources, the rate must be a numeric value. For example, if you material label is "gallon" and you type "12", this would mean "$12/gallon".