We update Unity Android projects for compatibility with ARM64 architecture

Google has invited developers to update applications for compatibility with the ARM64 architecture by August 1, 2019, if they do not meet these requirements

Find and enable ARM64 support in Unity

To enable, open the settings File - Build Settings, then - Player Settings for the Android platform. In the opened inspector, we see on the Other settings tab the Configuration section.



Note! The Scripting Backend option must be set to IL2CPP . And after enabling this option, you will need to have the NDK Android installed if it is not installed!

Download the latest stable version, register the paths to it - and “Oops”, the newest version of the NDK for Unity for some reason did not fit!
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Do not waste time, as I did, to download the latest stable version with number 20. The size of this package is about 2Gb. Start downloading the r16b (64-bit) version.

Download this particular, required version of NDK Android r16b (64-bit) for Windows
can be here .

After that, of course, unpack it, put it in a safe, accessible place and indicate the path to this place when building the build. Or, immediately register this path in the main Unity settings, there is such a field for prescribing the path to the NDK, and the menu is called the External Components (External Tools).

As a result, the ARM64 flag should become active in the Target Architectures option. Before these manipulations, the checkbox was inactive:

If your project uses Vuforia, it also needs to be updated.

Projects using Vuforia - the early versions of 64x did not support. However, starting with version 8.1 Vuforia supports 64-bit.

Best updated directly from Unity. To do this, go to the Window menu - Vuforia Configuration (Ctrl-Shift-V) - and look at the very top in the inspector - if an update is available and the version of Vuforia is not the newest, then the download link will be available - it is this that allows you to download the update executable file .

The second way to check for updates is to open the Help menu - Vuforia Engine - Check for Updates. And if there is an update, it will be offered for download.

After downloading, unpack. Inside there should be an executable file with about that name UnitySetup-Vuforia-AR-Support-for-Editor-2018.4-2019.1.exe . May differ version of your editor.

Further, pay attention to the correctness of actions when launching this update:

1. Accept License Agreement
2. If the Unity editor is open, you will be asked to close it.
3. Select the path to the Unity editor and click Update

Moreover, if you have Unity Hub installed, then the path will probably look something like this: "C: \ Program Files \ Unity \ Hub \ Editor \ 2018.4.3f1 \" .

Be careful with the paths and everything will turn out. When I specified the path to the folder where Unity.exe is directly located, I received an error: “I can’t find Unity.exe ”. The correct path is indicated only before the name of the version of the editor!

Another rake may be here. Perhaps you can find a link to Vuforia SDK Engine 8.3 on the Vuforia website: developer.vuforia.com/downloads . But, zip archives with SDK sources are downloaded here, and it will not work automatically to install it in Unity. Do not use this archive! Download the update file only by the link in the editor.

All recommendations refer to updating Vuforia if you have Windows installed. If you have a Mac, there are few differences, except that in writing paths to the folder with the Unity editor. And of course, choose the package versions for your platform correctly.

That's all, thanks to the audience, I hope the article will help someone.

Details on the requirements of Google .

For information on IL2CPP, see section 6 of the help .

Versions of NDK Android .

Vuforia on ARM64 support and upgrade to version 8.3.