# Android mode is incompatible for 4.01b

**URL:** <https://discourse.processing.org/t/android-mode-is-incompatible-for-4-01b/32436>\
**Category:** Processing for Android\
**Created:** [September 26, 2021, 9:38pm UTC](https://discourse.processing.org/t/android-mode-is-incompatible-for-4-01b/32436 "2021-09-26T21:38:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![EndlessNight](https://avatars.discourse-cdn.com/v4/letter/e/e47c2d/32.png) [@EndlessNight](https://discourse.processing.org/u/EndlessNight)\
**Post date:** [September 26, 2021, 9:38pm UTC](https://discourse.processing.org/t/android-mode-is-incompatible-for-4-01b/32436/1 "2021-09-26T21:38:22Z")

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Hello guys I’m a new face in processing and I wonder how to use android mode in 4.01b.  
you see it said it is incompatible with this version, and I tried another version.

but when I executed 3.5.1, it was loaded by 4.01 ver. it looks like it doesn’t differentiate these.  
how can I use it??

 ![android](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/9/9d2ec609ce4a5ac52f653aa23adbc0249987b4f5.png)

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [September 27, 2021, 6:30pm UTC](https://discourse.processing.org/t/android-mode-is-incompatible-for-4-01b/32436/2 "2021-09-27T18:30:50Z")

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Hello,

You can run different versions of Processing.

See this topic:

> [@Can I safely install both Processing 4 and Processing 3.5.4?](https://discourse.processing.org/t/can-i-safely-install-both-processing-4-and-processing-3-5-4/31700/2):
>
> Hello, I have both installed. On startup: slight_smile

`:)`