arguments did not match any overloaded call:

Comments

• sebastiaan

  May 10

  Hi @joao_craveiro ,

  Can you post the full traceback (from the console) so that it's clear where the error originates?

  — Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• otuerk

  May 27

  I am getting the same error. Here is the traceback:

  Traceback (most recent call last):
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/opensesame_extensions/core/preload_items/preload_items.py", line 67, in _on_awake
      self._preload_one_item()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/opensesame_extensions/core/preload_items/preload_items.py", line 82, in _preload_one_item
      item.edit_widget()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/libqtopensesame/items/feedpad.py", line 73, in edit_widget
      self.sketchpad_widget.draw()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/libqtopensesame/widgets/sketchpad_widget.py", line 420, in draw
      element.draw()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/libqtopensesame/sketchpad_elements/_base_element.py", line 70, in draw
      self.graphics_item = super(base_element, self).draw()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/libopensesame/sketchpad_elements/_textline.py", line 53, in draw
      return self.canvas.text(properties[u'text'],
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/libqtopensesame/misc/sketchpad_canvas.py", line 623, in text
      im = t._to_pil()
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/openexp/_canvas/_richtext/richtext.py", line 243, in _to_pil
      im = self._qimage_to_pil(self._to_qimage())
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/openexp/_canvas/_richtext/richtext.py", line 223, in _qimage_to_pil
      return Image.fromqimage(self._to_qimage())
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/PIL/Image.py", line 3164, in fromqimage
      return ImageQt.fromqimage(im)
    File "/home/extra-laptop/.local/lib/python3.10/site-packages/PIL/ImageQt.py", line 81, in fromqimage
      im.save(buffer, "png")
  TypeError: arguments did not match any overloaded call:
    save(self, str, format: str = None, quality: int = -1): argument 1 has unexpected type 'QBuffer'
    save(self, QIODevice, format: str = None, quality: int = -1): argument 1 has unexpected type 'QBuffer'
  

  In my case, it started when I transferred the experiment to a new device (ubuntu) with a fresh opensesame install.
• Rafnica

  June 4

  I get the same error while trying to set up an experiment with a tobii eyetracker.

  The error occurs when I open opensesame (without actually running anything or opening my experiment).

  (Anaconda installation of OpenSesame with python3.10).

  The full traceback is the following:

  
  

  Traceback (most recent call last):

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\opensesame_extensions\core\preload_items\preload_items.py", line 67, in _on_awake

    self._preload_one_item()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\opensesame_extensions\core\preload_items\preload_items.py", line 82, in _preload_one_item

    item.edit_widget()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\libqtopensesame\items\feedpad.py", line 73, in edit_widget

    self.sketchpad_widget.draw()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\libqtopensesame\widgets\sketchpad_widget.py", line 420, in draw

    element.draw()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\libqtopensesame\sketchpad_elements\_base_element.py", line 70, in draw

    self.graphics_item = super(base_element, self).draw()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\libopensesame\sketchpad_elements\_textline.py", line 53, in draw

    return self.canvas.text(properties[u'text'],

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\libqtopensesame\misc\sketchpad_canvas.py", line 623, in text

    im = t._to_pil()

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\openexp\_canvas\_richtext\richtext.py", line 243, in _to_pil

    im = self._qimage_to_pil(self._to_qimage())

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\openexp\_canvas\_richtext\richtext.py", line 223, in _qimage_to_pil

    return Image.fromqimage(self._to_qimage())

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\PIL\Image.py", line 3164, in fromqimage

    return ImageQt.fromqimage(im)

   File "C:\Users\Behav2_Stim\anaconda3\envs\opensesame-py3\lib\site-packages\PIL\ImageQt.py", line 81, in fromqimage

    im.save(buffer, "png")

  TypeError: arguments did not match any overloaded call:

   save(self, fileName: Optional[str], format: Optional[str] = None, quality: int = -1): argument 1 has unexpected type 'QBuffer'

   save(self, device: Optional[QIODevice], format: Optional[str] = None, quality: int = -1): argument 1 has unexpected type 'QBuffer'

  
  

  
  

  According to chatgpt the problem is the following:

  
  

  "The error message you're seeing is related to the PIL (Python Imaging Library) and PyQt integration, specifically when trying to convert a QImage to a PIL.Image object. The problem arises when the save method is called with a QBuffer object, which the save method does not expect.".

  
  

  Unfortunately, I'm not sure how to solve it without trying to change the code that is being called from the scripts. I tried to update the PIL and pyqt5 packages, but that did not solve the problem.
• sebastiaan

  June 4

  I'm not entirely sure where this comes from, but it seems to be an incompatibility between PIL and PyQt. Can you check which versions your are running of PyQt, Pillow, and OpenSesame?

  from PyQt5.QtCore import PYQT_VERSION_STR, QT_VERSION_STR; print(PYQT_VERSION_STR, QT_VERSION_STR)
  import PIL; print(PIL.__version__)
  from libopensesame.metadata import __version__; print(__version__)
  

  
  

  
  
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• Rafnica

  June 24

  PyQT: 5.15.10

  QT: 5.15.2

  Pillow: 10.3.0

  OpenSesame: 4.0.27
• MDJ

  September 10

  Hi there,

  Was this issue ever resolved? I am encountering a similar problem.

  Matthew