Answers Database

Design Manager: Unhandled exception, invalid file name, PCFilename class


Record #917

Product Family:  Software

Product Line:  FPGA Core

Problem Title:
Design Manager: Unhandled exception, invalid file name, PCFilename class


Problem Description:
A Design Manager project that was copied from one computer/filesystem to
another may ellicit the following error when a user tries to open the
_____.prj file:

   ---System Error---

   Unhandled exception: Invalid file name, 'h:\john\glenn\high\sch\ool.1'

   PCFilename class>>getFileSystem:
   PCFilename class>>getFileSystem:
   PCFilename class>>concreteClassFor:
   PCFilename class>>createInstanceNamed:
   Filename class>>named:

Normally, Design Manager asks the user to respecify the input design when
it cannot find the input design specified in the project file.	However, if
the design file's DRIVE does not exist, Design Manager will instead give
the above error.


Solution 1:

Temporarily mount a network drive to the drive letter required (in this
example, the H: drive).  Run Design Manager and open the project again.
This time, it should say "Cannot locate the input design" and give you the
opportunity to respecify the directory in which it is located.	After
respecifying the design directory, you can unmount the network drive.



Solution 2:

Temporarily make a virtual (SUBST'd) drive by exiting Windows and typing:

   subst h: c:\temp

(Switch the drive letter in the error message for h: and use whatever
directory you want in place of c:\temp.)

Re-enter Windows, run Design Manager, and open the project again.  This
time, it should say "Cannot locate the input design" and give you the
opportunity to respecify the directory in which it is located.	After
respecifying the design directory, you can unSUBST the virtual drive
(outside of Windows) with:

   subst h: /d



End of Record #917