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I'm using QGIS 3.1 and I created a plugin. Finally, I want to add a image(.png) to my plugin's GUI with Qt Designer. But when I add it, QGIS gives an error when it opens and my plugin does not work.

These is my steps:

  • First, I open my "...base.ui" file with Qt Designer and I create a empty label enter image description here

  • Image source selection with pixmap enter image description here

    enter image description here

  • Scale to image and saving after that enter image description here

------- Errors -------------- enter image description here

--- My compile.bat and recources.qrc files ---- enter image description here enter image description here

Edit: ---Error Messages as text format---

Couldn't load plugin 'save_attributes' due to an error when calling its classFactory() method 

TypeError: qRegisterResourceData(int, bytes, bytes, bytes): argument 2 has unexpected type 'str' 

(Python version: 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] 
QGIS version: 3.10.3-A Coruña A Coruña, 0e1f846438 )

Note: Maybe the method that I applied was wrong. I can try to image adding with different way, if you tell me.

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  • @KadirŞahbaz I edited my post and added errors as text format on last part.
    – AFK
    Dec 11, 2020 at 5:01
  • Did you try choosing the image with "choose file" instead of "choose resource" ?
    – JULESG
    Dec 11, 2020 at 8:20
  • @JULESG yes I tried and this way, it does not give an error and plugin is working. but the image does not appear on the GUI
    – AFK
    Dec 11, 2020 at 10:13

1 Answer 1

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I found a solution with the help of this post.

It worked for me. I'm on QGis 3.16, I hope it's the same for the 3.10 version.

Once you've added the resource image. You need to open the file save_attributes_dialog_base.ui with a text editor and look for a ressources element. Like this one :

enter image description here

This is the cause of the problem. You have to empty the element. Like this :

enter image description here

Save your file. Go to QGis, refresh your plugin and you're good !

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  • I tried to your solution. no longer gives an error, my plugin opens. but the image is not appear where I put on the GUI. ss: i.ibb.co/hcsFb0r/Screenshot-5.png
    – AFK
    Dec 11, 2020 at 11:32
  • @AFK Did you try to put another image ? maybe with another format ?
    – JULESG
    Dec 11, 2020 at 11:47
  • no but it works now. I rerun again my compile.bat file and tried again to your solution, finally it works. thnx
    – AFK
    Dec 11, 2020 at 11:56

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