Adb Server Didn't Ack Failed To Start Daemon Error Solusi

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Apr 16, 2025

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Adb Server Didn't ACK Failed to Start Daemon Error: Solutions and Troubleshooting

The dreaded "adb server didn't ACK * failed to start daemon" error can bring any Android developer's workflow to a screeching halt. This frustrating message prevents your computer from communicating with your Android device, blocking debugging and file transfers. But don't despair! This comprehensive guide will walk you through the most common causes and effective solutions to get your ADB server up and running again.

Understanding the "adb server didn't ACK" Error

Before diving into solutions, let's understand what this error means. ADB (Android Debug Bridge) is a command-line tool that facilitates communication between your computer and your Android device. The "adb server didn't ACK" error indicates a failure in establishing this connection. This usually happens because the ADB server on your computer is unable to communicate with the ADB daemon running on your device. This communication breakdown can stem from various issues, ranging from simple configuration problems to more complex software conflicts.

Common Causes and Their Fixes

Let's explore the most frequent culprits behind this pesky error and how to resolve them:

1. Conflicting ADB Installations

• The Problem: Having multiple versions of ADB installed (e.g., through Android Studio, SDK platforms, or other tools) can cause conflicts. The system might try to use the wrong version or experience inconsistencies in its configuration.

• The Solution: Identify and uninstall any redundant ADB installations. Keep only one consistent installation, usually managed through your Android Studio or SDK installation. Restart your computer after uninstalling to ensure changes are effective.

2. Driver Issues

• The Problem: Outdated, corrupted, or missing USB drivers prevent your computer from correctly recognizing your Android device.

• The Solution: Update your device drivers. This usually involves visiting your device manufacturer's website and downloading the latest USB drivers for your specific Android model. Alternatively, use your operating system's Device Manager (Windows) or System Information (macOS) to update or reinstall drivers.

3. Firewall Interference

• The Problem: Your computer's firewall or antivirus software may be blocking ADB's communication ports.

• The Solution: Temporarily disable your firewall and antivirus software to see if this resolves the issue. If it does, add ADB to the exceptions list in your security software to allow it through permanently without disabling protection. Remember to re-enable your security measures after testing.

4. USB Connection Problems

• The Problem: A faulty USB cable or USB port can disrupt the connection between your computer and device.

• The Solution: Try using a different USB cable and port. Ideally, use a cable that supports data transfer, not just charging. Some USB ports might be disabled or malfunctioning.

5. ADB Server Not Running

• The Problem: The ADB server itself might not be running.

• The Solution: Open your terminal or command prompt and run adb kill-server followed by adb start-server. This restarts the ADB server, hopefully resolving any temporary glitches.

6. Incorrect Device Configuration

• The Problem: Your Android device might not be correctly configured for debugging.

• The Solution: On your Android device, go to Settings > System > About Phone > Build Number (tap repeatedly until "Developer options" are unlocked). Then go to Settings > Developer options and ensure "USB debugging" is enabled.

Advanced Troubleshooting Steps

If the basic solutions don't work, consider these more advanced troubleshooting steps:

• Restart Your Devices: Restarting both your computer and your Android device can often clear temporary software glitches.
• Check Your Environment Variables: Ensure that your PATH environment variable includes the directory containing your ADB executable.
• Reinstall the Android SDK: As a last resort, try reinstalling your Android SDK.

Preventing Future Occurrences

By following best practices, you can minimize the chances of encountering this error again:

• Keep Your Drivers Updated: Regularly update your USB drivers to ensure compatibility.
• Use High-Quality Cables: Avoid cheap or damaged USB cables.
• Maintain a Clean ADB Installation: Avoid installing multiple versions of ADB.
• Be Mindful of Firewalls: Configure your firewall to allow ADB access.

By following these solutions and preventive measures, you can overcome the "adb server didn't ACK" error and get back to developing Android applications smoothly. Remember to systematically try each solution, restarting your devices after each step, to pinpoint the exact cause and resolve it effectively.