The error message you are receiving indicates that the ADB (Android Debug Bridge) is unable to connect to the device at the specified IP address (10.0.2.15) and port (5555). This can happen for several reasons. Here are some troubleshooting steps you can take to fix the issue:
### 1. Check Device and ADB Server Status
- **Ensure MuMu Emulator is Running**: Make sure that the MuMu Emulator is running and that the virtual device is properly


