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Fixed in 2020.1.X



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Issue ID




[Linux] Unity Hub sets up Android SDK, NDK and JDK incorrectly on Linux



Android deployment tools are set up incorrectly on Linux, we've found the following issues, resulting in the tools not being recognized by Unity:
1) The executables in OpenJDK (Editor/Data/PlaybackEngines/AndroidPlayer/OpenJDK) don't have the right permissions for execution (possibly due to wrong compression/uncompression of JDK archive) - "chmod +x OpenJDK" fixes the JDK location.
2) Android SDK (Editor/Data/PlaybackEngines/AndroidPlayer/SDK) is missing the tools directory in it. Copying the tools dir from somewhere else fixes SDK.
3) Android NDK is unpacked to the wrong directory (Editor/Data/PlaybackEngines/AndroidPlayer/NDK/android-ndk-r19 instead of Editor/Data/PlaybackEngines/AndroidPlayer/NDK, compared to other platforms) - moving the contents to the correct directory fixes NDK.

How to reproduce:
1. Create or open any project on a version that was installed via Unity Hub (along with Android SDK & NDK tools)
2. Go to Preferences -> External Tools and make sure that Android SDK/NDK Installed with Unity checkmarks are ticked
3. Build for Android

Expected results: Project .apk is successfully built
Actual results: Errors regarding not being able to locate Android SDK

Reproducible with: 2019.1.14f1, 2019.2.6f1, 2019.3.0b4, 2020.1.0a3 (versions downloaded through Unity Hub)
Versions 2018.4 and below do not have the option of downloading SDK & NDK tools through the Hub

Behavior in 2019.1.14f1 - when trying to build, a dialog box appears "Android SDK is outdated. SDK Tools version 0.0.0 < 26.1.1."
Behavior in 2019.2.6f1 - dialog box contains "Unable to locate Android SDK"
Behavior in 2019.3.0b4, 2020.1.0a3 - dialog box contains "Android SDK not found or invalid. Please, fix it in Preferences -> External Tools"

- In 2019.3.0b4 and 2020.1.0a3, in Preferences window under Android SDK Tools and NDK Installed with Unity (recommended) there are warnings that say:
"You are missing the recommended Android SDK Tools / NDK. Install the recommended version with Unity Hub."
- Workaround is to use external SDK & NDK, for instance downloaded through Android Studio
- In Data/PlaybackEngines/AndroidPlayer SDK & NDK content exists, but Editor does not locate it correctly

Comments (23)

  1. lucas12347700

    Jan 17, 2023 02:23


  2. lucas12347700

    Jan 17, 2023 02:21

    Unity hub

  3. agajulapally

    Feb 01, 2022 23:05

    This does not work on the recommended 2020 LTS version 2020.3.27f1

  4. Rattaspi

    Nov 26, 2021 16:10

    I have this issue in the 2021.1.14.

  5. CitizenZero000

    Oct 21, 2021 03:37

    still a problem

  6. mhmmdemen

    Oct 12, 2021 19:58

    This problem still exists in 2021.1.23f1 - Unity Hub 2.4.5. I think maybe it because of permissions. I dont want install tools with other ways because all tools already including in unity.

  7. Pachanka

    Mar 16, 2021 22:05

    Still exists in 2020.2.7f1 :/

  8. Rock_Rafy

    May 05, 2020 11:41

    Please note as mentioned in the above issue I am working on Unity 2019.3.12f1 (Windows), The dialog box contains "Android SDK not found or invalid. Please, fix it in Preferences -> External Tools" .

    Can anyone please tell me Updating to Unity 2020.1.0b7(beta) (Windows) will fix the issue or not. Please inform. I don't want to install an android studio separately.

    Sorry for the poor English.

    Thank you.

  9. Rock_Rafy

    May 05, 2020 11:35

    Hi ELDOMINANTEGRANDE which version you were previously.

    As per the above issue which error you were faced.

  10. eldominantegrande

    Mar 15, 2020 15:15

    Fixed with UnityEditor 2020.1.0b1.

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