# Android SDK not valid

**URL:** https://discourse.processing.org/t/android-sdk-not-valid/47964
**Category:** Processing for Android
**Created:** [February 24, 2026, 10:06pm UTC](https://discourse.processing.org/t/android-sdk-not-valid/47964 "2026-02-24T22:06:06Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![PLloyd](https://avatars.discourse-cdn.com/v4/letter/p/edb3f5/32.png) [@PLloyd](https://discourse.processing.org/u/PLloyd)
#### Post date: [April 4, 2026, 12:56pm UTC](https://discourse.processing.org/t/android-sdk-not-valid/47964/6 "2026-04-04T12:56:55Z")

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In fact I suspect a problem due to a former installation of an old Processing 3 version that I don’t succeed to uninstall correctly. I succeed to install Processing 4 on a new PC using the procedure. Unfortunately I failed to build the sketch (see [Processing with Android, problems with Android compiling - #4 by PLloyd](https://discourse.processing.org/t/processing-with-android-problems-with-android-compiling/48290/4) ) 🤔

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