Android was designed for the arm64architecture. However, Intel computers were so widespread that, most of the time, emulators would run against the x86_64 (Intel) architecture. This is why Waldo initially required your Android build to be compatible with the x86_64 architecture.

In Q2 2024, Waldo upgraded its infrastructure to use arm64 emulators instead of x86_64.

The impact? Device startup times are 3 times faster ⚡! This can greatly impact test duration (especially with suites containing many small tests, as they require allocating more devices from Waldo).

📘

arm architecture For The Win!

For this reason, Waldo support for x86_64 emulators was ended in September 2024.

How to know if your APK is built for arm64?

• in Android Studio, open the APK Analyzer from Build > Analyze APK and select your APK.
• Check the lib folder in the APK to verify that it contains armeabi-v7a or arm64-v8a. If so, congrats, your app is ready to run on our arm64 emulators 💪 !

Other, follow the step below ⬇️.

Tune your app config to build for arm64

📘

Your app probably already builds for arm64, so make sure you first try the previous step.

If you build with Gradle

• Open your build.gradle file (usually the one in the app module).
• Look for the ndk section if you have one, and ensure that the abiFilters include armeabi-v7a or arm64-v8a.

android {
    ...
    defaultConfig {
        ...
        ndk {
            abiFilters 'armeabi-v7a', 'arm64-v8a'
        }
    }
    ...
}