FormatException FormatException: Unexpected extension byte (at offset 38))

[sitakanta136]

Exception : ftpClient.connect(); this line

FTPClient ftpClient = FTPClient('192.168.0.1',
port: 22,
user: 'root',
pass: 'IQANIOT850',
debug: true); // Connect to FTP Server
ftpClient.connect(); //Exception in Connection
debugPrint("Connected successfully");
debugPrint(ftpClient.currentDirectory());
try {
// Upload File
ftpClient.uploadFile(File('assets/situ.txt'));
} finally {
// Disconnect
ftpClient.disconnect();
}