"Unexpected error occurred" during automated build

[sjohn]

We recently moved our automated builds to a new server, and in the process upgraded from VBP 5.7 to 6.3. The new server is running Windows 2003 SP2.

We have a simple master build script that runs as a scheduled task and launches three product-specific build scripts. I have yet to have all three scripts run successfully during the automated build.

A script will stall with a Visual Build error dialog that says "Unexpected error occurred." None of the build steps before the error fail, and after hitting "OK" on the dialog the rest of the script runs without error.

So far I have seen this happen with two different scripts, but only when running as part of an scheduled task. If I run the scripts interactively I don't experience a problem.

We've been running with Visual Build for nearly five years and this is the first time I've run into this issue.

Any ideas?