Fatal Error: Unhandled Access Violation Exception at 418520h

[Nancy Charlton [Adesk Support]]

(Message has been moved from the 'autocad.network' newsgroup:

Ed Tamiso <gt0...@prism.gatech.edu> wrote:

> I am having problems with AutoCad R14 running WinNT 4.0 on a Pentium Pro 200
> Compaq, 80 MB ram and plenty of hard drive space. It seems that with mostly
> large drawings, I get "Fatal Error: Unhandled Access Violation Exception at
> 418520h" while the drawing is regenerating during loading . It asks if I
> want to save changes and that Acad cannot continue, but upon attempting to
> reopen, it does the same thing. This has happened on multiple computers on
> our network and seems to be occurring with increasing frequency. The only
> thing running in the background is virus scanning software. Please help,
> for this problem has caused me to lose over 40 hours of work and I can't
> take it anymore! Thanks

[Nancy Charlton [Adesk Support]]

> (Mesage has been moved from the 'autocad.network' newsgroup)
>
> James C. Seymour III <jsey...@ssc.nasa.gov> wrote:
>
> > I have noticed the same errors... I ran surface scan and defrag a few times
> > to make sure the harddrive was clean and that seemed to help a little. The
> > last computer that happened to I re-loaded AutoCAD and the problem went
> > away. Some of the drawings I use are up to about 9 megs but I do not get
> > the error as much as you do. Are you using the 14.01 upgrade?
> >
> > Ed Tamiso wrote in message <6memb4$6d...@adesknews2.autodesk.com>...

[Matt Anderson]

Nancy Charlton [Adesk Support] wrote in message
<358FE71C...@autodesk.com>...

>(Message has been moved from the 'autocad.network' newsgroup:
>
>Ed Tamiso <gt0...@prism.gatech.edu> wrote:
>

>> I am having problems with AutoCad R14 running WinNT 4.0 on a Pentium Pro
200
>> Compaq, 80 MB ram and plenty of hard drive space. It seems that with
mostly
>> large drawings, I get "Fatal Error: Unhandled Access Violation Exception
at
>> 418520h" while the drawing is regenerating during loading . It asks if
I
>> want to save changes and that Acad cannot continue, but upon attempting
to
>> reopen, it does the same thing. This has happened on multiple computers
on
>> our network and seems to be occurring with increasing frequency. The
only
>> thing running in the background is virus scanning software. Please help,
>> for this problem has caused me to lose over 40 hours of work and I can't
>> take it anymore! Thanks
>

Try restoring the backup drawing and rename the errored dwg to dwg.err or
something. I have that happen before, but I'll always go to the backup
after a failure followed by a failure.

Matt Anderson
Joseph A Schudt & Associates
j...@jaseng.com

[Nick Aldrich]

I have seen several postings saying to disable virus scan programs while
running Autocad. Hope this helps.
Nick Aldrich

> > James C. Seymour III <jsey...@ssc.nasa.gov> wrote:

\ The only
> > > >thing running in the background is virus scanning software\

[Jeff Lanctot [Autodesk Support]]

Ed,

This problem is caused by using the Lengthen, Total command. We have only
seen it occur when the Lengthen, Total command reduces the size of the
entity on both sides of the entity. If the size of the entity is increased,
rather than decreased, the error does not occur. This error can occur with
broken ellipses, elliptical arcs, splines, and lightweight polylines.

Best of luck!
--
Jeff Lanctot
AutoCAD Product Support, Americas
WW Support & Services, Autodesk
Discussion Q&A: http://www.autodesk.com/discussion

Nancy Charlton [Adesk Support] wrote in message
<358FE71C...@autodesk.com>...
>(Message has been moved from the 'autocad.network' newsgroup:
>
>Ed Tamiso <gt0...@prism.gatech.edu> wrote:
>
>> I am having problems with AutoCad R14 running WinNT 4.0 on a Pentium Pro
200
>> Compaq, 80 MB ram and plenty of hard drive space. It seems that with
mostly
>> large drawings, I get "Fatal Error: Unhandled Access Violation Exception
at
>> 418520h" while the drawing is regenerating during loading . It asks if
I
>> want to save changes and that Acad cannot continue, but upon attempting
to
>> reopen, it does the same thing. This has happened on multiple computers
on

>> our network and seems to be occurring with increasing frequency. The
only

[Bill Morris]

Thats interesting, because Chuong Vando at Autodesk sueested to me that the
problem is caused by circular nested xrefs. I have also been told that it
can occur because you have R13 leaders in the file which will need to be
converted by an patch at the R14 web page. Whatever it is, it is causing us
major problems.

If anyone has any REAL idea what is causing this, please share it.

Thanks

Bill Morris

bmo...@m-da.com

Jeff Lanctot [Autodesk Support] wrote in message
<6ofu5e$b6...@adesknews2.autodesk.com>...

[Jeff Foster]

A tip I received yesterday was this:

When you receive this error and it contains 6 digits followed by an h,
it is a software issue. If you receive this error and it contains 8
digits followed by an h, it is a hardware issue.

In this case, it would be software related. What I would need to know
to help assess the situation is the exact version of R14 being used.
Is it R14, R14.01 or R14.01 post-copyright issue?

In the 8 digit situation, reseating RAM would be a first
recommendation.

Hope this is useful.

Jeff Foster
Owner, CADShack
http://www.cadshack.com
CAD Specialist, McKim & Creed
http://www.mckimcreed.com

[Matt Dillon]

Interesting. Who did you get this info from, Jeff?

Matt Dillon
The D.C. CADD Company, Inc.
http://www.dccadd.com

[Jeff Foster]

I got it from my CAD dealer yesterday ( Paul Benbow, CADre, Cary, NC )
while I was enjoying the lunch he bought for me.<G> We often trade
tips with each other.

On Thu, 16 Jul 1998 02:42:51 GMT, matt...@dcci.com (Matt Dillon)
wrote these significant words:

>Interesting. Who did you get this info from, Jeff?
>
>
>On Wed, 15 Jul 1998 22:31:31 GMT, jfo...@cadshack.com (Jeff Foster) wrote:
>
>>
>>
>>A tip I received yesterday was this:
>>
>>When you receive this error and it contains 6 digits followed by an h,
>>it is a software issue. If you receive this error and it contains 8
>>digits followed by an h, it is a hardware issue.

<snip>

[Cabot Eudaley]

> In the 8 digit situation, reseating RAM would be a first
> recommendation.
>

Reseating the RAM? I think it's either in or not, so if
you have 96 Megabytes and the computer says it has that
then you're ok.

I remember (vaguely) that 418520h is a specific software
problem with lengthen LWpolyline and may even be identified
on the Autodesk site somewhere.

Of course my experience is with the 8 digit (I was told
9, but I know the 'h' means hexadecimal). Exactly duplicatable
on several machines with a specific drawing file, following
the same steps everytime.

I even disabled my cache and booted in SAFE mode (never
again). Still same error at same location (8 digit). I
still have the drawing, and I identified it as a block
across three layers (dam arkytecs :). Freeze two layers
and select what's left. Blammo.

If you can duplicate the error on another machine with
different hardware then it's probably not hardware. Make
sure the Autocad settings are identical. (setvar;?;* - copy
history).

The machines we've added all the patches to Win95 to never
lock anymore. Occasionally a program will have to be killed.

Cabot

[Jeff Lanctot [Autodesk Support]]

Perhaps a different memory address suggests a problem with circular nested
xrefs, but a Unhanded Access Violation Exception specifically at a memory
address of 418520h suggests only one thing- that someone has run across the
known issue using the Lengthen, Total command.

Regards,

--
Jeff Lanctot
AutoCAD Product Support, Americas
WW Support & Services, Autodesk
Discussion Q&A: http://www.autodesk.com/discussion

Bill Morris wrote in message <6oj4km$c1...@adesknews2.autodesk.com>...