How to solve "Node not existing (file 'genicam_wrap.cpp', line 16815)"

[Vinidata]

I am trying to switch from automatic gain control to manual gain control after user input. I am setting gain and exposure time from sliders, but when I try and capture photos the error above is printed.

--- Switch to Manual Mode ---

        print("Switching to manual mode for capture...")
        # Store original values
        original_gain_auto = self._get_feature_value(['GainAuto'])
        original_exposure_auto = self._get_feature_value(['ExposureAuto'])
        original_gain_selector = self._get_feature_value(['GainSelector'])
        original_exposure_mode = self._get_feature_value(['ExposureMode'])

        # Set to manual capture mode
        self._set_feature_value(['GainAuto'], "Off")
        self._set_feature_value(['ExposureAuto'], "Off")
        self._set_feature_value(['GainSelector'], "DigitalAll")
        self._set_feature_value(['ExposureMode'], "Timed")

        # Set the values from the sliders
        if not self._set_feature_value(['Gain', 'GainRaw'], capture_gain):
            print("  - CRITICAL WARNING: Could not set Gain.")
        if not self._set_feature_value(['ExposureTime', 'ExposureTimeAbs'], capture_exposure_us):
            print("  - CRITICAL WARNING: Could not set ExposureTime.")

        print(f"  - Manual settings applied: Gain={capture_gain} (raw), Exposure={capture_exposure_us/1000:.3f}ms")

        # Allow settings to take effect and sensor to expose
        wait_time_s = (capture_exposure_us / 1000000.0) + 0.1
        print(f"  - Waiting {wait_time_s:.3f}s for settings to apply...")
        time.sleep(wait_time_s)

Is your camera operational in Basler pylon viewer on your platform

Yes

Hardware setup used

Intel x64
Windows
128gb of Ram

Basler acA3800-10gc

Camera(s) used

Basler acA3800-10gc (25151423)
106703-16;U;acA3800_10g;V4.0-0;1

Runtime information:

python: 3.11.9 (tags/v3.11.9:de54cf5, Apr  2 2024, 10:12:12) [MSC v.1938 64 bit (AMD64)]
platform: win32/AMD64/10
pypylon: 4.2.0 / 10.2.1.471

[SMA2016a]

Could you check with the Pylon Viewer whether all the nodes you're trying to modify already have the same values?