Variable is already defined of data type

Variable is already defined of data type

Greetings,

The first four items, have been working fine in getting "currency" field from the CRM. When I added the fifth, BMD, I get variable error. Can you point me to the error of my ways?

" Variable 'BMD' is already defined of data type 'DECIMAL' but trying to update 'STRING' data type

//Dealer Opportunity
gdr = crmResp.get("Dealer Gross Revenue");
lsv = crmResp.get("Less Service Revenue");
lsfas = crmResp.get("Less Sales from AS");
INDopp = crmResp.get("INDEAL Opportunity");
BMD = crmResp.get("Base Monthly DuesFCK");
if ((((gdr  !=  null)  &&  (lsv  !=  null))  &&  (lsfas  !=  null))  &&  (INDopp  !=  null))
{
    input.Dealer_Gross_Revenue = gdr.toDecimal();
    input.Less_Service_Revenue = lsv.toDecimal();
    input.Less_Sales_from_AS = lsfas.toDecimal();
    input.INDEAL_Opportunity = INDopp.toDecimal();
    input.Base_Monthly_Dues1 = BMD.toDecimal();
}