Failed to Start Monitoring Emulator-5554
When encountering the error message “Failed to start monitoring emulator-5554,” it usually indicates an issue with the Android Emulator. This error occurs when the ADB (Android Debug Bridge) fails to establish a connection with the emulator.
Possible Causes:
- Emulator already running on port 5554
- ADB connection issues
- Outdated or incompatible emulator version
- Insufficient resources (RAM, CPU, etc.)
Resolving the Issue:
1. Checking for Existing Emulator Processes:
First, ensure that there are no other instances of the emulator already running on port 5554. You can kill the existing emulator process using the following command:
adb -s emulator-5554 emu killOnce the process is terminated, you can try starting the emulator again.
2. Verifying ADB Connection:
Ensure that the ADB is properly connected to the emulator. Run the following command to check the device status:
adb devicesIf the emulator is not listed, try restarting the ADB server:
adb kill-server
adb start-serverThen reconnect the emulator and check if it’s recognized by ADB.
3. Updating Emulator Version:
If you’re using an outdated emulator version, consider updating it to the latest version. Open the Android SDK Manager and check for available updates. Install the updates and try running the emulator again.
4. Allocating Sufficient Resources:
Make sure that your system has enough resources (RAM, CPU, etc.) to run the emulator. Emulators require a significant amount of resources, so close unnecessary applications and try running the emulator again.
Example:
Let’s assume you are using Windows operating system. To kill the existing emulator process, open the command prompt and execute the following commands:
C:\path\to\android\sdk\platform-tools\adb -s emulator-5554 emu killTo check the ADB connection, run the command:
C:\path\to\android\sdk\platform-tools\adb devicesIf the emulator is not recognized by ADB, try restarting the ADB server:
C:\path\to\android\sdk\platform-tools\adb kill-server
C:\path\to\android\sdk\platform-tools\adb start-serverRemember to replace “C:\path\to\android\sdk\” with the actual path to your Android SDK installation directory.