[solved] QCAD doesn't run after upgrade

QCAD Professional QCAD Installation and Upgrades
1

Win 8.1 Pro, updating from QCAD 3.15.2 to 3.27.8

QCAD (trial) was installed and working on my Win 8.1 Pro PC. Had not used for a long while but I wanted to update an old file that I had drawn as a plan for my workshop, all OK, I could edit it.

I am considering purchasing along with CAM module since I will be doing some CNC work, so I decided to upgrade to see the latest features.

I downloaded and installed 3.27.8 and installed, seemed to go OK but when I try to run from an icon on my desktop I just get a small rotating blue circle for a couple of seconds and the app does not open.

Having searched and seen another forum article (though relating to Linux) I then tried to run directly by finding the install folder and double clicking QCAD.exe, but again the app did not open.

Any ideas how to fix this?

Regards,
Graham

2

Please double-check if you have installed the correct version (32bit or 64bit):

If you have installed the correct package, you might have to reset your configuration:

3

Thank you Andrew for your impressively prompt reply.

Both my Windows 8.1 Pro and the old QCAD version I had and the new version are 64 bit.

I have followed the link you specified and that you linked and renamed the QCAD3.ini and library_3_0_0_9.db files but I still have the same problem, I note that new versions of the two files have not appeared.

I looked in the Event Log and found the following which I am unable to interpret, perhaps it means something to you?

Faulting application name: qcad.exe, version: 3.27.8.0, time stamp: 0x633e8c98
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x00000000006d6143
Faulting process ID: 0x1ec8
Faulting application start time: 0x01d925d352d7c5b9
Faulting application path: C:\Program Files\QCAD\qcad.exe
Faulting module path: unknown
Report ID: 909d1d41-91c6-11ed-bfd5-782bcb9783d8
Faulting package full name:
Faulting package-relative application ID:

Graham

4

Thanks. No, that doesn’t help much. It looks like it doesn’t get far. Can you try the 32bit package instead?

5

Thanks, but before I try that perhaps this from the app crash report.wer file might help?

Version=1
EventType=BEX64
EventTime=133179251430878332
ReportType=2
Consent=1
UploadTime=133179251431698899
ReportIdentifier=1298c66f-91c6-11ed-bfd5-782bcb9783d8
IntegratorReportIdentifier=1298c66e-91c6-11ed-bfd5-782bcb9783d8
NsAppName=qcad.exe
Response.BucketId=a333be3c13a343e9bb77e2f913da0085
Response.BucketTable=5
Response.LegacyBucketId=1979300120660410501
Response.type=4
Sig[0].Name=Application Name
Sig[0].Value=qcad.exe
Sig[1].Name=Application Version
Sig[1].Value=3.27.8.0
Sig[2].Name=Application Timestamp
Sig[2].Value=633e8c98
Sig[3].Name=Fault Module Name
Sig[3].Value=StackHash_0732
Sig[4].Name=Fault Module Version
Sig[4].Value=0.0.0.0
Sig[5].Name=Fault Module Timestamp
Sig[5].Value=00000000
Sig[6].Name=Exception Offset
Sig[6].Value=PCH_E2_FROM_ntdll+0x000000000009079A
Sig[7].Name=Exception Code
Sig[7].Value=c0000005
Sig[8].Name=Exception Data
Sig[8].Value=0000000000000008

That error code C0000005 is memory access violation error caused by a buffer overrun?

If this doesn’t mean anything to you either then I will uninstall everything relating to QCAD and reinstall.

Graham

6

I went ahead and uninstalled the new version 3.27.8 (using Windows Add or Remove Programs) and as the old version 3.15.2 was also listed there I uninstalled that too, then manually removed remnants that I could see in the file system, and reinstalled the 64 bit version using my original download.

It is now working OK.

Graham

7

OK, great. Thanks for letting me know.