I am trying to use the Window Manager in kivy but I keep get the following error
[INFO ] [Logger ] Record log in C:\Users\Gavin\.kivy\logs\kivy_21-06-03_22.txt
[INFO ] [deps ] Successfully imported "kivy_deps.gstreamer" 0.3.2
[INFO ] [deps ] Successfully imported "kivy_deps.angle" 0.3.0
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.3.0
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.3.1
[INFO ] [Kivy ] v2.0.0
[INFO ] [Kivy ] Installed at "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.9.5 (tags/v3.9.5:0a7dcbd, May 3 2021, 17:27:52) [MSC v.1928 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\python.exe"
[INFO ] [Factory ] 186 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer ignored)
[INFO ] [Text ] Provider: sdl2
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] Using the "OpenGL" graphics system
[INFO ] [GL ] GLEW initialization succeeded
[INFO ] [GL ] Backend used <glew>
[INFO ] [GL ] OpenGL version <b'4.0.0 - Build 10.18.10.5069'>
[INFO ] [GL ] OpenGL vendor <b'Intel'>
[INFO ] [GL ] OpenGL renderer <b'Intel(R) HD Graphics 4000'>
[INFO ] [GL ] OpenGL parsed version: 4, 0
[INFO ] [GL ] Shading version <b'4.00 - Build 10.18.10.5069'>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <16>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
Traceback (most recent call last):
File "c:\Users\Gavin\Documents\GitHub\Mobile Temperture Convertor\Mobile-Temperature-Convertor\main.py", line 15, in <module>
kv = Builder.load_file("My.kv")
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\builder.py", line 306, in load_file
return self.load_string(data, **kwargs)
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\builder.py", line 373, in load_string
parser = Parser(content=string, filename=fn)
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\parser.py", line 402, in __init__
self.parse(content)
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\parser.py", line 511, in parse
objects, remaining_lines = self.parse_level(0, lines)
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\parser.py", line 614, in parse_level
_objects, _lines = self.parse_level(
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\parser.py", line 614, in parse_level
_objects, _lines = self.parse_level(
File "C:\Users\Gavin\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\parser.py", line 674, in parse_level
if current_property[:3] == 'on_':
TypeError: 'NoneType' object is not subscriptable
Here is the .kv file
WindowManager:
MainWindow:
FtoC:
CtoF:
<MainWindow>:
name: "main"
<FtoC>:
name: "fTOc"
<CtoF>:
name: "cTOf"
The WindowManager area is giving me the following error:
Kivy parser exception: 'NoneType' object is not subscriptable
I would be very thankfull is someone found out what is wrong with this code because I can not find it. Its probably something simple that I didn't see.
Edit:
hear is a is code that is NOT giving the error:
WindowManager:
MainWindow:
FtoC:
CtoF:
<MainWindow>:
name: "main"
BoxLayout:
hear is code that IS giving the error:
WindowManager:
MainWindow:
FtoC:
CtoF:
<MainWindow>:
name: "main"
BoxLayout:
orientation: 'vertical'
size: root.width , root.height
Label:
text: "Fahrenheit to Celsius"
font_size: 32
Button:
text: "Fahrenheit to Celsius"
font_size: 32
on_release:
Is can see from this that when I add content to the BoxLayout I get the error. Though I still do not know why this is causing the error or how to fix it.
I hope this helps people solve this problem.
There was an indentation error in my code. I would like to thank @Inclement for his help.