kivy on android termux critical window in xfce4 desktop

[Degenerate Tech]

just for fun i have installed  termux in android 8 and xfce4 deskop and a vnc viewer 

by which i can run some gui programs

in this desktop python tkinter running well .

i am  installing kivy via pip3 so it is done but window is critical 

i have seen there is sdl2,sdl2-ttf.sdl2-mixer etc in termux pkg manager .so i have installed in it ...

is there any way to solve this problem ?

https://wiki.termux.com/wiki/Graphical_Environment

https://wiki.termux.com/wiki/Main_Page#:~:text=Termux%20is%20an%20Android%20terminal,available%20using%20the%20package%20manager. 

https://wiki.termux.com/wiki/Graphical_Environment

Desktop $ pip3 install kivy

Collecting kivy

  Using cached Kivy-2.0.0-cp39-cp39-linux_aarch64.whl

Requirement already satisfied: pygments in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from kivy) (2.8.1)

Requirement already satisfied: Kivy-Garden>=0.1.4 in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from kivy) (0.1.4)

Requirement already satisfied: docutils in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from kivy) (0.16)

Requirement already satisfied: requests in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from Kivy-Garden>=0.1.4->kivy) (2.25.1)

Requirement already satisfied: idna<3,>=2.5 in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from requests->Kivy-Garden>=0.1.4->kivy) (2.10)

Requirement already satisfied: chardet<5,>=3.0.2 in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from requests->Kivy-Garden>=0.1.4->kivy) (4.0.0)

Requirement already satisfied: urllib3<1.27,>=1.21.1 in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from requests->Kivy-Garden>=0.1.4->kivy) (1.26.4)

Requirement already satisfied: certifi>=2017.4.17 in /data/data/com.termux/files/usr/lib/python3.9/site-packages (from requests->Kivy-Garden>=0.1.4->kivy) (2020.12.5)

Installing collected packages: kivy

Successfully installed kivy-2.0.0

~/Desktop $ python main.py

[INFO   ] [Logger      ] Record log in /data/data/com.termux/files/home/.kivy/logs/kivy_21-03-21_6.txt

[INFO   ] [Kivy        ] v2.0.0

[INFO   ] [Kivy        ] Installed at "/data/data/com.termux/files/usr/lib/python3.9/site-packages/kivy/__init__.py"

[INFO   ] [Python      ] v3.9.2 (default, Feb 22 2021, 12:26:04) 

[Clang 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489

[INFO   ] [Python      ] Interpreter at "/data/data/com.termux/files/usr/bin/python"

[INFO   ] [Factory     ] 186 symbols loaded

[INFO   ] [ImageLoaderFFPy] Using ffpyplayer 4.3.2

[INFO   ] [Image       ] Providers: img_tex, img_dds, img_pil, img_ffpyplayer (img_pygame ignored)

[INFO   ] [Text        ] Provider: pil(['text_pygame'] ignored)

[CRITICAL] [Window      ] Unable to find any valuable Window provider. Please enable debug logging (e.g. add -d if running from the command line, or change the log level in the config) and re-run your app to identify potential causes

[CRITICAL] [App         ] Unable to get a Window, abort.

~/Desktop $  

[Mr. Mog]

If you want to run kivy directly on android, the simplest is installing pydroid (which I use). With pydroid kivy is installed.

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[Degenerate Tech]

yes I know but ..I want know to what is the problem. ..turmux provide sdl2 and xfce4 desktop environment tkinter working well ...I am very interested to know why the  problem is

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