React-Native, Android, Genymotion: ADB server didn't ACK

Question

I am working with React-Native, Android, and Genymotion on Mac. When I run react-native run-android I get this lines at the end of the launch operation:

Answer 1

the adb version on your system is different from the adb version on the android sdk platform-tools . Below suggestion is work for me for Linux operating system

1. check sys adb version run the below command

adb version

Android Debug Bridge version 1.0.39

2. check sdk adb version

cd /root/Android/Sdk/platform-tools

./adb version

Android Debug Bridge version 1.0.32

3. copy

rm /usr/bin/adb

[Note : the above command remove the existing adb then copy the adb from sdk/platform-tools directory ]

sudo cp /root/Android/Sdk/platform-tools/adb /usr/bin/adb

Then run the project using this command

react-native run-android

Answer 2

I am using genymotion, but Paul's solution alone did not fix the error (for Mac).

I had to:

Update Android SDK to the latest version (24.4.1) via the SDK manager

Type android in the command line

In the SDK manager find the latest SDK tools and install.

Once installed the SDK path should update the new SDK location like below.

Then update the $ANDROID_HOME to use the new SDK

export ANDROID_HOME=/usr/local/Cellar/android-sdk/24.4.1_1

export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools

Confirm it has been added by viewing your path with echo $PATH

Then in genymotion do what @Paul says above and point genymotion ADB to use the same sdk

Answer 3

I had a similar issue.

First, I uninstalled the app. Then, I pointed GenyMotion to the android sdk provided from Android Studio Next, I ran "adb kill-server" into the terminal. Finally, I re-ran "react-native run-android" and got a build success.

Answer 4

If want to keep your system clean, you can also use Genymotion without Android Studio:

1. Find Genymotion's copy of adb. On macOS this is normally /Applications/Genymotion.app/Contents/MacOS/tools/.
2. Add the Genymotion tools directory to your path - execute/add the line export PATH=/Applications/Genymotion.app/Contents/MacOS/tools/:$PATH to your ~/.bash_profile or ~/.bash_rc.
3. Make sure that you can run adb from your terminal.

(From https://docs.expo.io/versions/latest/workflow/genymotion)

Answer 5

I had the same thing while I tried to run from expo UI. Did the same things, as described in answers, but app was not running. When once tried run exp android from command line (in the project folder), application ran successfully and next times runs from Expo UI was successfully.