由于无效参数错误，无法将 tcp 客户端套接字连接到 android 上的服务器套接字

Question

基本上我试图在同一设备上创建服务器和客户端套接字（稍后它将是不同的设备）。 服务器代码运行良好，但客户端套接字构造函数抛出此错误：

 FATAL EXCEPTION: DefaultDispatcher-worker-3
                                                                                                    Process: com.example.serverclient, PID: 10987
                                                                                                    java.net.ConnectException: failed to connect to /fe80::f895:72ff:fecc:641a (port 8000) from /:: (port 0): connect failed: EINVAL (Invalid argument)
                                                                                                        at libcore.io.IoBridge.connect(IoBridge.java:142)
                                                                                                        at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142)
                                                                                                        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390)
                                                                                                        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230)
                                                                                                        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212)
                                                                                                        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436)
                                                                                                        at java.net.Socket.connect(Socket.java:621)
                                                                                                        at java.net.Socket.connect(Socket.java:570)
                                                                                                        at java.net.Socket.<init>(Socket.java:450)
                                                                                                        at java.net.Socket.<init>(Socket.java:250)
                                                                                                        at com.example.serverclient.MainActivity$onCreate$2.invokeSuspend(MainActivity.kt:42)
                                                                                                        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
                                                                                                        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
                                                                                                        at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:42)
                                                                                                        at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
                                                                                                        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
                                                                                                        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:749)
                                                                                                        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
                                                                                                        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)
                                                                                                        Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@65399a9, Dispatchers.IO]
                                                                                                    Caused by: android.system.ErrnoException: connect failed: EINVAL (Invalid argument)
                                                                                                        at libcore.io.Linux.connect(Native Method)
                                                                                                        at libcore.io.ForwardingOs.connect(ForwardingOs.java:94)
                                                                                                        at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:138)
                                                                                                        at libcore.io.ForwardingOs.connect(ForwardingOs.java:94)
                                                                                                        at libcore.io.IoBridge.connectErrno(IoBridge.java:156)
                                                                                                        at libcore.io.IoBridge.connect(IoBridge.java:134)
                                                                                                        ... 18 more

这是我的活动文件：

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        val ip= getLocalIpAddress()
        val port=8000

        lifecycleScope.launch (Dispatchers.IO){
            val sSocket= ServerSocket(port)
            val socket=sSocket.accept()
            val input = BufferedReader(InputStreamReader(socket.getInputStream()))
            val output = PrintWriter(socket.getOutputStream())
            val a=input.readLine()

        }
        lifecycleScope.launch(Dispatchers.IO) {
            delay(3000L)
            val addr = InetAddress.getByAddress(ip)
            val socket = Socket(addr, port) //this line crashes
            val input = BufferedReader(InputStreamReader(socket.getInputStream()))
            val output = PrintWriter(socket.getOutputStream())
            output.println("aaa")
        }
//default compose ui....
}
fun getLocalIpAddress(): ByteArray? {
    try {

        val en: Enumeration<NetworkInterface> = NetworkInterface.getNetworkInterfaces()
        while (en
                .hasMoreElements()) {
            val intf: NetworkInterface = en.nextElement()
            val enumIpAddr: Enumeration<InetAddress> = intf.inetAddresses
            while (enumIpAddr
                    .hasMoreElements()) {
                val inetAddress: InetAddress = enumIpAddr.nextElement()
                if (!inetAddress.isLoopbackAddress) {
                    return inetAddress.address
                    //return inetAddress.hostAddress?.let { makeIpNormal(it) }
                }
            }
        }
    } catch (ex: SocketException) {
        // Log.e(S.TAG, ex.toString())
    }
    return null
}

我的清单包含

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />

我已经为此苦苦挣扎了好几天，欢迎任何意见:)