Error: Incompatible fields: 400 Selected dimensions and metrics cannot be queried together.

Hi,

I am getting the following error when I want to pull the data out of GA:

Error: Incompatible fields: 400 Selected dimensions and metrics cannot be queried together. ga:Date, ga:Year, ga:week, ga:dbmimpressions, ga:dbmclicks, ga:dbmcost, ga:dbmctr, ga:dbmcpc, ga:dbmcpm IllegalDimensionMetricCombinationException

The strange thing is that I only get this error when I add an campaign name filter to the data. When I try to run the report without the campaign filter everything is working out fine.... 

Can somebody help me with this error?

Gr,

Nils