Integration tests failing on github Error: The process '/bin/sh' failed with exit code 127

[jingtang10]

we have been seeing this consistent failure with connectedCheck:

Run ReactiveCircus/[email protected]
API level: 27
target: default
CPU architecture: x86_64
Hardware profile: 
AVD name: test
emulator options: -no-window -gpu swiftshader_indirect -no-snapshot -noaudio -no-boot-anim
disable animations: true
Script:
./gradlew connectedCheck --stacktrace
Installing latest build tools, platform tools, and platform.
/bin/sh -c \sdkmanager --install 'build-tools;30.0.2' platform-tools 'platforms;android-27' > /dev/null
/bin/sh: sdkmanager: command not found
/Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 emu kill
error: could not connect to TCP port 5554: Connection refused
The process '/Users/runner/Library/Android/sdk/platform-tools/adb' failed with exit code 1
Error: The process '/bin/sh' failed with exit code 127