# After Update: error on command:"QUAD\_GANTRY\_LEVEL"

**URL:** <https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807>\
**Category:** General Discussion\
**Created:** [March 29, 2026, 1:11am UTC](https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807 "2026-03-29T01:11:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![figugegu](https://avatars.discourse-cdn.com/v4/letter/f/47e85d/32.png) [@figugegu](https://klipper.discourse.group/u/figugegu)\
**Post date:** [March 29, 2026, 1:11am UTC](https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807/1 "2026-03-29T01:11:57Z")

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### Basic Information:

Printer Model: Voron 2.4 350, Stealthchanger  
 MCU / Printerboard: Manta M8P V2  
 Host / SBC: CB2  
 klippy.log: [klippy.log](https://klipper.discourse.group/uploads/short-url/hYVs2kcnaCgkW4kJMXLHnzCzNN8.log) (4.4 MB)

After updating the host to the latest version of Klipper, I can no longer run QGL. As soon as the tab is triggered for the first time, it crashes with the message “Internal error on command:“QUAD\_GANTRY\_LEVEL””. I’ve found posts about this here in the forum.  
But:  
Now I wanted to update the mainboard to the latest version as well. But no matter which step I follow according to [https://canbus.esoterical.online/mainboard\_klipper\_updating.html](https://esoterical), it still shows the old version.  
What could be causing this?

The host is running version v0.13.0-593-g2f05309d5-dirty  
The board version is v0.13.0-573-g644cda5ec

Thank you!

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<div class="post-metadata">

**Author:** ![flowerysong](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/flowerysong/32/10214_2.png) [@flowerysong](https://klipper.discourse.group/u/flowerysong)\
**Post date:** [March 29, 2026, 4:26pm UTC](https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807/2 "2026-03-29T16:26:35Z")

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The crash is in one of the many modifications you’ve made to Klipper, so if you want to update Klipper you’ll need to either remove that modification or fix it to be compatible with the version of Klipper that you’ve installed.

```auto
Untracked files: klippy/extras/autotune_tmc.py, klippy/extras/bed_thermal_adjust.py, klippy/extras/manual_rail.py, klippy/extras/motor_constants.py, klippy/extras/multi_fan.py, klippy/extras/rounded_path.py, klippy/extras/tool.py, klippy/extras/tool_probe.py, klippy/extras/tool_probe_endstop.py, klippy/extras/toolchanger.py

```

```auto
Internal error on command:"QUAD_GANTRY_LEVEL"
Traceback (most recent call last):
  File "/home/biqu/klipper/klippy/gcode.py", line 223, in _process_commands
    handler(gcmd)
  File "/home/biqu/klipper/klippy/gcode.py", line 151, in <lambda>
    func = lambda params: origfunc(self._get_extended_params(params))
  File "/home/biqu/klipper/klippy/extras/quad_gantry_level.py", line 53, in cmd_QUAD_GANTRY_LEVEL
    self.probe_helper.start_probe(gcmd)
  File "/home/biqu/klipper/klippy/extras/probe.py", line 527, in start_probe
    probe_session.run_probe(gcmd)
  File "/home/biqu/klipper/klippy/extras/tool_probe.py", line 154, in run_probe
    pos = self._probe(params['probe_speed'])
  File "/home/biqu/klipper/klippy/extras/tool_probe.py", line 137, in _probe
    result = self.probe_offsets.create_probe_result(epos)
AttributeError: 'ProbeOffsetsHelper' object has no attribute 'create_probe_result'

```

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<div class="post-metadata">

**Author:** ![figugegu](https://avatars.discourse-cdn.com/v4/letter/f/47e85d/32.png) [@figugegu](https://klipper.discourse.group/u/figugegu)\
**Post date:** [March 30, 2026, 9:50am UTC](https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807/3 "2026-03-30T09:50:03Z")

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Thank you for your answer. And yes, maybe i have to clean my files first.  
For now, i flashed my host back to the same version as my board and it works. Of course, it’s not a proper solution, but for the moment…

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [May 29, 2026, 9:50am UTC](https://klipper.discourse.group/t/after-update-error-on-command-quad-gantry-level/25807/4 "2026-05-29T09:50:56Z")

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