read failed, socket might closed or timeout, read ret: -1

[ravi2143]

E/BThermalPrinterPlugin: read failed, socket might closed or timeout, read ret: -1
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
at android.bluetooth.BluetoothSocket.readAll(BluetoothSocket.java:758)
at android.bluetooth.BluetoothSocket.readInt(BluetoothSocket.java:772)
at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:404)
at id.kakzaki.blue_thermal_printer.BlueThermalPrinterPlugin.lambda$connect$1$BlueThermalPrinterPlugin(BlueThermalPrinterPlugin.java:544)
at id.kakzaki.blue_thermal_printer.-$$Lambda$BlueThermalPrinterPlugin$Ahw9MM_9K6f9UCVqtrNy_jHybcU.run(Unknown Source:6)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:923)

I am getting this error while printing.

[tcd93]

That seems like a bug related to older Android device, what printer were you running on?

I've pushed a fix, run flutter pub upgrade and try again