AttributeError: 'GstTcamBin' object has no attribute 'get_device_serials_backend' while running the 00-list-devices.py

[zarathacia]

when running the 00-list-devices.py file i get this error:

Traceback (most recent call last):
File "path/tiscamera/examples/python/00-list-devices.py", line 79, in
list_devices()
File "path/tiscamera/examples/python/00-list-devices.py", line 43, in list_devices
serials = source.get_device_serials_backend()
AttributeError: 'GstTcamBin' object has no attribute 'get_device_serials_backend'

When running the command gst-launch-1.0 tcambin ! videoconvert ! ximagesink
it works perfectly by adding this command export TCAM_DISABLE_DEVICE_BLACKLIST=1

• OS: Ubuntu 20.04
• Architecture/Platform: amd64
• Camera model: DFK 23UX174
• tiscamera version: Tcam: 1.1.0_master/70abad2a_rev_4139

I am trying to build a ROS node based on the sample code found in the repo but they don't work.

[TIS-Stefan]

Hello
The environment TCAM_DISABLE_DEVICE_BLACKLIST=1 variable must be set in all sessions you have. I you set it only once in the terminal, is is not set in another.

However, I am not sure, whether this answer relates to your issue.

Stefan

[zarathacia]

Hi,
yeah it doesn't really relate to my problem is with the error that comes when i run the example files. i get the traceback above.

[TIS-Stefan]

Hello
I just saw, you use version 1.1.0, but we are on version 1.1.1 already. Therefore, can you please update and try again?

Stefan

[zarathacia]

Hello,
i updated the driver. the code was able to compile but it is unable to find the device.

also tested the camera with the command : gst-launch-1.0 tcambin ! videoconvert ! ximagesink and it works.

[TIS-Stefan]

Hello

did you do the "export TCAM_DISABLE_DEVICE_BLACKLIST=1" set before running the sample? What does tcam-ctrl -l says? (It does the same as the Python script.

Stefan

[zarathacia]

Hi it worked. thanks for your assistance.