rpmbuild error

[bclark at bwkip.com]

I am getting this error:

error: error creating temporary file ${prefix}/var/tmp/rpm-tmp.CsA3oo: No
such file or directory
error: Unable to open temp file

This error occurs after call to check-files.

lines of executing (%PREP,%BUILD, %INSTALL) also have the ${prefix} but it
has a prior / example) /${prefix}/var/tmp/rpm-tmp.t50rm1

Not sure where $prefix is coming from

RPM Version: 4.8.0

command executed: rpmbuild -ba filename.spec