[GH-ISSUE #36] Win10 -> not find ffmpeg #27

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opened 2026-03-02 16:47:14 +03:00 by kerem · 2 comments

kerem commented

2026-03-02 16:47:14 +03:00

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Originally created by @Devirob on GitHub (Jan 27, 2023).
Original GitHub issue: https://github.com/initialcommit-com/git-sim/issues/36

Try using git-sim (great idea btw ;) on Windows 10 with Python 3.11 and get:

RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
Manim Community v0.17.2

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Python311\Scripts\git-sim.exe\__main__.py", line 7, in <module>
  File "C:\Python311\Lib\site-packages\git_sim\__main__.py", line 248, in main
    scene = gs.GitSim(args)
            ^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\git_sim\git_sim.py", line 20, in __init__
    super().__init__()
  File "C:\Python311\Lib\site-packages\manim\scene\moving_camera_scene.py", line 92, in __init__
    super().__init__(camera_class=camera_class, **kwargs)
  File "C:\Python311\Lib\site-packages\manim\scene\scene.py", line 141, in __init__
    self.renderer.init_scene(self)
  File "C:\Python311\Lib\site-packages\manim\renderer\cairo_renderer.py", line 49, in init_scene
    self.file_writer: Any = self._file_writer_class(
                            ^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\manim\scene\scene_file_writer.py", line 88, in __init__
    raise RuntimeError(
RuntimeError: Manim could not find ffmpeg, which is required for generating video output.
For installing ffmpeg please consult https://docs.manim.community/en/stable/installation.html
Make sure to either add ffmpeg to the PATH environment variable
or set path to the ffmpeg executable under the ffmpeg header in Manim's configuration.

I think it is easy to fix by myself - but maybe if you want to share your project you should know about it.

Originally created by @Devirob on GitHub (Jan 27, 2023). Original GitHub issue: https://github.com/initialcommit-com/git-sim/issues/36 --- Try using git-sim (great idea btw ;) on Windows 10 with Python 3.11 and get: ``` RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning) Manim Community v0.17.2 Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "C:\Python311\Scripts\git-sim.exe\__main__.py", line 7, in <module> File "C:\Python311\Lib\site-packages\git_sim\__main__.py", line 248, in main scene = gs.GitSim(args) ^^^^^^^^^^^^^^^ File "C:\Python311\Lib\site-packages\git_sim\git_sim.py", line 20, in __init__ super().__init__() File "C:\Python311\Lib\site-packages\manim\scene\moving_camera_scene.py", line 92, in __init__ super().__init__(camera_class=camera_class, **kwargs) File "C:\Python311\Lib\site-packages\manim\scene\scene.py", line 141, in __init__ self.renderer.init_scene(self) File "C:\Python311\Lib\site-packages\manim\renderer\cairo_renderer.py", line 49, in init_scene self.file_writer: Any = self._file_writer_class( ^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Python311\Lib\site-packages\manim\scene\scene_file_writer.py", line 88, in __init__ raise RuntimeError( RuntimeError: Manim could not find ffmpeg, which is required for generating video output. For installing ffmpeg please consult https://docs.manim.community/en/stable/installation.html Make sure to either add ffmpeg to the PATH environment variable or set path to the ffmpeg executable under the ffmpeg header in Manim's configuration. ``` ------ I think it is easy to fix by myself - but maybe if you want to share your project you should know about it.

kerem closed this issue

2026-03-02 16:47:14 +03:00

kerem commented

2026-03-02 16:47:15 +03:00

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@initialcommit-io commented on GitHub (Jan 27, 2023):

Hi @Devirob - can you let me know the exact installation steps you tried?

Seems like you didn't follow the instructions for installing Manim and Manim dependencies on your OS. That will involve installing ffmpeg. Please follow these steps and let me know if it works for you:

https://docs.manim.community/en/stable/installation/windows.html

@initialcommit-io commented on GitHub (Jan 27, 2023): Hi @Devirob - can you let me know the exact installation steps you tried? Seems like you didn't follow the instructions for [installing Manim and Manim dependencies on your OS](https://github.com/initialcommit-com/git-sim#quickstart). That will involve installing ffmpeg. Please follow these steps and let me know if it works for you: https://docs.manim.community/en/stable/installation/windows.html

kerem commented

2026-03-02 16:47:15 +03:00

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Owner

@Devirob commented on GitHub (Jan 27, 2023):

What a quick response! Wow!

You're right - I missed the Manim installation - I've fixed it and now it works.

Thank you so much.

@Devirob commented on GitHub (Jan 27, 2023): What a quick response! Wow! You're right - I missed the Manim installation - I've fixed it and now it works. **Thank you so much.**

kerem referenced this issue

2026-03-02 16:48:04 +03:00

[PR #27] [MERGED] Update contributing steps #77