I have put together an experiment made up of 25 word documents and que questionnaires. At the end of the experiment this message shows up: ''the variable V004 is numeric but is stored in the SPSS file as string. It will be converted to a string to match the existing data file''. There are also similar messages for V002 and V003

I am clueless on how to rectify the problem. I have named all variables, there is none named V002-4.
I welcome comments on how to solve this problem.
Thank you.