Solving the 'cannot find drf file' problem when compiling packages.

Solving the 'cannot find drf file' problem when compiling packages. Delphi

Delphi has had a very irritating bug for many releases. It surfaces with a compile error similar to this 'Cannot find ... drf file' when recompiling packages that require other packages. To circumvent it, open up all the packages for which you have source code, and specify the compile option: 'Rebuild explicitly' instead of 'Rebuild when needed'.