KVM requires a CPU that supports vmx or means “no.”)īut wait! Docker is but one of several executors available on CircleCI. Here’s what it says in a CircleCI Docker uname -a We can use the Emulator’s -accel-check flag to interrogate a system’s compatibility.

Hardware acceleration, which depends on supporting capabilities from the processor and operating system. To achieve reasonable performance, the Android Emulator needs Unfortunately, when you begin configuring your tests, you’ll soon realize that this environment can’t run the Emulator. For building and publishing, this is fantastic. One of the jobs in our current workflow boots up the circleci/android:api-29-node image in about four seconds with all the build tools we need. Chances are you can start with a prebuilt one. Overall, it’s great: Docker images are fast, portable, and cacheable.

Since CircleCI 2.0, the recommended build environment for most projects is the Docker Executor. With a little tinkering, though, we can make it work in another environment! What Doesn’t Work The Android Emulator, unfortunately, doesn’t work in CircleCI’s conventional ( Docker-based) Android build environment.