Neural depth mode leads to crash

After resolving zlibwapi.dll error I met this

C:\Program Files (x86)\ZED SDK\tools>"ZED Depth Viewer.exe"
Optimizing: NEURAL DEPTH...
 Optimizing neural_depth_1.3 |  100.0%[=============================>] Done ! in 2min 42s
[ZED Depth Viewer] CUDA - OpenGL Interop Failed with Err Code  304
Stack trace (most recent call last):
#19   Object "", at 00007FF688946D04, in getZEDSDKBuildVersion
Attempt to access invalid address.

#18   Object "", at 00007FF688927A65, in  ??
#17   Object "", at 00000000552BA3E7, in QCoreApplication::exec
#16   Object "", at 00000000552B7D73, in QEventLoop::exec
#15   Object "", at 00007FFC29F924B9, in qt_plugin_query_metadata
#14   Object "", at 0000000055303346, in QEventDispatcherWin32::processEvents
#13   Object "", at 00007FFC7700E299, in DispatchMessageW
#12   Object "", at 00007FFC7700E858, in CallWindowProcW
#11   Object "", at 0000000055303C15, in QEventDispatcherWin32::processEvents
#10   Object "", at 00007FFC29F924DF, in qt_plugin_query_metadata
#9    Object "", at 00000000552BD32E, in QCoreApplicationPrivate::sendPostedEvents
#8    Object "", at 00000000552BB649, in QCoreApplication::notifyInternal2
#7    Object "", at 0000000055688417, in QApplication::notify
#6    Object "", at 0000000055689512, in QApplicationPrivate::notify_helper
#5    Object "", at 00000000556B423D, in QWidget::event
#4    Object "", at 00000000552E09C8, in QObject::event
Attempt to access invalid address.

#3    Object "", at 00007FF68892135E, in  ??
#2    Object "", at 00007FF688931925, in getZEDSDKBuildVersion
#1    Object "", at 00007FF688932D15, in getZEDSDKBuildVersion
#0    Object "", at 00007FFC1D7D6610, in cuLaunchHostFunc

C:\Program Files (x86)\ZED SDK\tools>

what the platform you support most? i can switch to ubuntu if it’s more stable


It may be an OpenGL error rather than a NEURAL mode issue. To be sure of that, you can run our tutorial 3 after changing the depth mode to neural.

Either way, there is probably an issue with your nvidia / cuda installation. Getting a fresh installation (windows or ubuntu) should fix this. If you use windows, don’t install 3.7.5, we fixed a CUDA issue in 3.7.6.


Hi, thank you for answer
I’ve already had cuda before installed ZED sdk but I clicked install cuda while ZED sdk has been installing. Reboot. There were issues. I removed old cuda. I installed last correct nvidia driver for my “quadro” graphic card. Reboot.
All but neural mode became working. Then I resolved zlibapi.dll problem and net for depth was optimized successfully.

I have last driver and last cuda
Driver Version: 516.59 CUDA Version: 11.7

Checked the same functionality on different WS under ubuntu, works with Quadro 8000 Driver Version: 510.73.08 CUDA Version: 11.6

may the problem be connected with 11.7 version?