cwangfr

@diogob yes, that's what i need

+1

use this gradle version is ok dependencies { classpath 'com.android.tools.build:gradle:7.1.3' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" }

use this version dependencies { classpath 'com.android.tools.build:gradle:**7.1.3**' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" }

i have same problem android-arm • Android 9 (API 28) CH34xSerialDevice Flutter 3.16.9 Dart version 3.2.6 my code is like this ```dart final port = usbDevice.create(); if (await port.open()) {...

Thank u for the reponse, This line is a copy mistake. The code in my project is right. 

I redid some tests and found the following. I prepared three devices. Device A, Android Phone (arm64) Device B, Android Emulator - Nexus_10_API_30 (x86) Device C, Window 11 x64 Test...