Problem:
TC040E Missing idy file no source available message is produced when running tcreport on the tcresult.tcz file from a test run.
The IDY and CBL are resident in the same directory.
Resolution:
This issue was caused by product versioning.
The report from a Net Express V5 compiled application was being formatted with the tcreport tool from Net Express V4.
Using the the tcreport tool from V5 resolved the problem.