Hello everybody,
I'm writing to find help for a problem which I'm not finding solutions to.

The problem is:

Our Customer SW Autocad Mechanical 2010 cannot open certain files: these files are developed with Autocad 2010 by our external offices and then edited & saved with an LT version of Autocad 2010.

Autocad LT 2010 doesn't give any problem during file opening, editing, modifying, recovering, auditing and saving.

Same problem when opening the files (from AUTOCAD 2010) with mechanical without involving the LT version.

All the service packs for Autocad Mechanical 2010 have been istalled, but no solution has been found yet.

The message during the opening says "fatal error" (but the SW can read the file, behind the window drawing is visible).
Files are not corrupted.
All versions are correctly licensed.

Have anyone ever had a problem such the one described above???

Any solution, comment or suggestion??

Thanks in advance...


...searching for Help...


BYE,    AXL

What is the full error message?Could this be a problem specific to the computer itself (hardware)?How many files are we talking about here?

I will post the entire error message as soon as our customer send it to me.

The problem involves all our coustomer's computers, so I do not think this can depend on the specific machine hardware or specific machine problem.

About ten files give the same result at the opening, all the files developed with Autocad 2010.

What steps have you taken to troubleshoot the problem prior to coming here and posting your question?

At first we tought it was a problem of the files themselves.

We recovered the files, we also copied and pasted the drawings on a new templates...without solving the problem.

We tried all the saving formats: dwg from 2000 to 2010 versions.

We also tried to save the drawings in dxf format...

We tried to operate on a single PC reinstalling autocad machanical and service packs but nothing has changed.

Is it possible to post one of the affected drawing files?  Maybe someone here could have a go at it.  You can delete portions of the drawing if you wish just don't purge the drawing.  Save under a new name such as "test".Wouldn't there be some inherent problems if the drawing were created in Mechanical, saved, opened and edited in LT, then saved again?  This does not sound like a very good method to me.John Connor2011-06-30 13:39:27

First of all thank you John for all your kindly replies.

The error message is the following:


"FATAL ERROR: Unhandled Access Violation Reading 0x000c Exception at 4925e3f8h"




It is a bit difficult for me to send one of the drawings cause all of them refer to special technologies adopted by our Customer.

I will ask them the permission to post a drawing in order to find a quick solution.

A search on the error only turned up one other person, using AutoCAD Mechanical 2010, who had the same problem.  One responder suggested that the file was corrupted beyond repair.Personally, I don't really care about what special technologies your customer's drawing incorporates I'm just interested in the problem.  Like I said, have portions of the drawing deleted so it is virtually unusable to anyone without the specific knowledge required to reconstruct it.  That's of course if they want any real help solving the problem.  The alternative is to draw it all over from scratch.  It's their choice.By the way, are all your computers current with their respective AutoDesk updates?


John Connor2011-06-30 14:11:39

so, only the 2nd case...
rare disease... difficult solution

All the softwares involved have their last official Autodesk updates installed.

Anyway, I'll try to push in order to have the custom. permissions for posting the DWGs and have the precious help of the forum.

THANX JOHN

Who actually did the drawings in the first place and why are they being shuffled between Mechanical and LT then back?

I'm a newbie and I cannot upload files.
I kindly ask to all the moderators/administrators if it is possible to enable my files/images uploading on the forum.

THANKS

It should work now (make sure you use the Reply button, not the Quick Reply form).

Is it possible that such an error might occur due to different OS installed on machines (Windows 7 - Windows XP) or due to different OS bitrate (64 - 32) ??

In any case, let's consider that each machine is equipped with the correct SW for its OS.

I'm not sure that the involved PCs have these differences, I'm just asking in order to focus on all the possible conflicts.

I've opened many a drawing done with 32-bit versions of AutoCAD stretching back many releases on my new 64-bit system and have not encountered any problems doing so.  Some drawings were done on a computer that ran Windows 3.1 and still no problem.  Heck, I even opened drawings done in a DOS version of AutoCAD without a hitch.

so... here it is one of the files giving the above described problems.

Have fun... I'll wait for your feedback

THANX

ACAD MECH - ERROR - TEST FOR FORUM.dwg

I was able to open the drawing with no problem using AutoCAD 2012.I ran the -purge command on it and purged all regapps of which there were 137.  A handful of blocks, one layer and one linetype were purged as well.I then ran an audit on the drawing.  36,600 objects were scanned including 213 blocks.  Zero errors found.I think I'll try using AutoCAD 2010 and see what happens next.BTW...I work in the civil/sanitary/wastewater field so this drawing, as nice as it is, means nothing to me.  I won't be stealing any parts out of it.  Tell your client to take it easy.As a side thought, since there is no title block/border could the problem be with those aspects of the drawing?

Sorry, no problem detected opening the drawing in AutoCAD 2010.  Not sure what else to tell you at the moment.Your client certainly puts a great deal of detail into their drawings.  Before it was purged how large was the drawing file size?What are the specs on the computer(s) being used?

Thanks a lot for your support John... At least now your tests have confirmed that the problem is not the file itself...

I'll go to the custumer searching for a solution directly on its machines (I cannot tell you their spec.s).

I will keep you informed if a solution will be found.

Thank you very much!!!!


AXL

How many bad or corrupted files are there in total?Where are they stored?  On a network?You may want to determine what path these drawings took from start to finish.  Who worked on them, where they were worked on, what software was used and record all this information.  Maybe you can find a pattern of sorts.Last thing.  Does this client exchange drawings with firms outside the originating country?After today I may not be around for a while.  I've got to be out of town and away from my computer for several days.   If you come up with any of this information and what to share it with us maybe someone else can pick up where I left off.Good luck.John Connor