cadImage.LoadFromFile() System.NullReferenceException

Sing · Post by **Sing** » 29 Oct 2020, 11:33

Hello

I have downloaded the latest version of CADImport (14.1.0.45509) and run the code cadImage.LoadFromFile().
I got a similar error to my old topic viewtopic.php?f=15&t=10460&sid=cc7efb42 ... 523ee82e3b.

Error message is below.

Exception thrown: 'System.NullReferenceException' in CADImport.dll
Exception thrown: 'System.NullReferenceException' in CADImport.dll
Exception thrown: 'System.NullReferenceException' in CADImport.dll
...
Exception thrown: 'System.NullReferenceException' in CADImport.dll
Exception thrown: 'System.NullReferenceException' in CADImport.dll
Managed Debugging Assistant 'ContextSwitchDeadlock'
The CLR has been unable to transition from COM context 0xf83b2aa0 to COM context 0xf83b2978 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.

Code: Select all

CADImage cadImage = CADImage.CreateImageByExtension(dwgFilePath);
cadImage.LoadFromFile(dwgFilePath);

I attached the .dwg files that occurred the errors.
This error makes a delay in loading .dwg files.

Thank you

Post by **support** » 30 Oct 2020, 16:40

Hello,

Thank you for the files.

Unfortunately, we couldn't reproduce the System.NullReferenceException in CADImage.LoadFromFile(). Could you please specify a version of .NET Framework used by your project or just attach a simple test project to your post? It will speed up investigation of the problem.

Mikhail

Sing · Post by **Sing** » 02 Nov 2020, 17:17

Hello

The version of .NET Framework is 4.6.1.
I attached a sample code.
I could not attach a .dwg file because of file size.
Download .dwg files I attached before.

And please reply to my old post (http://www.cadsofttools.com/forum/viewt ... =15&t=1046)
if you have some time.

Thank you.

Post by **support** » 02 Nov 2020, 20:25

Hello,

Thank you for the project, but, unfortunately, we still couldn't reproduce the problem.

Mikhail

Sing · Post by **Sing** » 03 Nov 2020, 17:02

Hello

Have you used the .dwg file attached?

Post by **support** » 03 Nov 2020, 21:50

Sing wrote: ↑
03 Nov 2020, 17:02
Hello

Have you used the .dwg file attached?

Yes, we have tested both DWG files you sent.

Mikhail

CADSoftTools