apparently, this is difficult to do. i get these error messages

[Pascal Fatal Error] IB_Header.pas(3309): Could not create output
file 'inter\IB_Header.dcu'

this comes after trying to compile the bpg file for cbuilder5 and
getting a lot of warning boxes that say i am missing the bpi files
for a lot of the subunits of the package

as a result, the program won't install...i am using the professional
version of cbuilder5

thank you in advance