Emulator: emulator: ERROR: AdbHostServer.cpp:102: Unable to connect to adb daemon on port: 5037

Question

我整个下午都在尝试运行我在 Android Studio 中的小型 Android/Kotlin 应用程序。贴在这个问题主题上的消息突然让我失望了。

我已经做了这些尝试：

1 - 冷启动（在虚拟设备屏幕 > 操作 > 立即冷启动）

2 - 我删除了以前的虚拟设备并下载了一个新的 (Nexus One)

3 - 我遵循了

中的所有步骤

3.1

cd C:\Users\Jimis\AppData\Local\Android\Sdk\platform-tool

adb kill-server
adb.exe start-server
adb devices -l

3.2

已删除平台工具并从 SDK Plataform

重新下载

3.3

重启电脑

我完全卡住了。

有件事引起了我的注意：为什么端口 5037 有这么多 PID。请看下面的内容，最初当我启动 Androdi Studio 时我只有 3 个，在我尝试调试我的应用程序后我得到了更多。

Microsoft Windows [versão 10.0.18363.836]
(c) 2019 Microsoft Corporation. Todos os direitos reservados.

C:\Users\Jimis>netstat -ano -p tcp |find "5037"
  TCP    127.0.0.1:5037         0.0.0.0:0              LISTENING       11492
  TCP    127.0.0.1:5037         127.0.0.1:50582        ESTABLISHED     11492
  TCP    127.0.0.1:50582        127.0.0.1:5037         ESTABLISHED     10052

C:\Users\Jimis>netstat -ano -p tcp |find "5037"
  TCP    127.0.0.1:5037         0.0.0.0:0              LISTENING       11492
  TCP    127.0.0.1:5037         127.0.0.1:50582        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50714        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50731        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50734        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50736        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50737        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50738        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50739        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50740        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50741        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50742        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50743        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50744        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50745        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50746        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50747        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50748        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50749        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50750        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50751        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50752        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50753        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50754        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50755        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50756        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50757        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50758        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50759        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50760        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50761        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50762        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50763        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50764        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50765        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50766        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50767        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50768        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50769        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50770        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50771        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50772        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50773        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50779        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50780        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50781        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50782        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50783        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50784        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50785        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50786        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50787        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50788        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50789        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50790        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50791        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50792        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:50793        ESTABLISHED     11492
  TCP    127.0.0.1:5037         127.0.0.1:50794        ESTABLISHED     11492
  TCP    127.0.0.1:50582        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50714        127.0.0.1:5037         ESTABLISHED     792
  TCP    127.0.0.1:50717        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:50719        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:50722        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:50729        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:50731        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50734        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50736        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50738        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50739        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50740        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50741        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50742        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50743        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50744        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50745        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50746        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50747        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50748        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50749        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50750        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50751        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50752        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50753        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50754        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50755        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50756        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50757        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50758        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50760        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50761        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50762        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50763        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50764        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50765        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50766        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50767        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50768        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50770        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50771        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50772        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50773        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50791        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50793        127.0.0.1:5037         ESTABLISHED     10052
  TCP    127.0.0.1:50794        127.0.0.1:5037         ESTABLISHED     10052

C:\Users\Jimis>

试图用 "netstat -a -b" 弄清楚为什么这么多建立的连接到同一个端口 5037 我到达了这个列表但是我没有如果它在使用 Android Studio 和 Emulator 时是正常的

...
     TCP    127.0.0.1:5037         SPANOT149:0            LISTENING
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50582        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50714        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50731        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50734        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50736        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50738        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50739        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50740        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50741        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50742        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50744        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50745        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50746        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50747        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50748        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50750        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50751        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50753        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50756        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50757        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50760        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50761        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50762        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50763        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50764        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50765        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50766        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50767        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50768        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50770        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50772        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50773        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50793        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50797        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:50955        ESTABLISHED
     [adb.exe]
      TCP    127.0.0.1:5037         orionhost:51276        ESTABLISHED
     [adb.exe]

我的应用程序build.gradle

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    android {
        compileOptions {
            sourceCompatibility JavaVersion.VERSION_1_8
            targetCompatibility JavaVersion.VERSION_1_8
        }
    }

    defaultConfig {
        applicationId "com.mycomp.appfirestore"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.core:core-ktx:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.13'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    // Firebase Libraries
    implementation 'com.google.firebase:firebase-core:17.4.2'
    implementation 'com.google.firebase:firebase-auth:19.3.1'
    implementation 'com.google.firebase:firebase-database:19.3.0'
    implementation 'com.google.firebase:firebase-storage:19.1.1'

    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:4.7.2'
}

项目build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.3.71'
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.3'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

*** 添加

如果它是相关的，我刚刚更新到 Android Studio 4.0 和同样的问题。

Android Studio 4.0
Build #AI-193.6911.18.40.6514223, built on May 20, 2020
Runtime version: 1.8.0_242-release-1644-b01 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1237M
Cores: 8
Registry: ide.new.welcome.screen.force=true
Non-Bundled Plugins:

阅读了很多关于 Whosebug 的文章，我达到了这个 other issue

我尝试在我的 C:\Users....android 中添加 advancedFeatures.ini 和

Vulkan = off
GLDirectMem = on

我不知道我到底做了什么，但我还是试过了，但我仍然遇到同样的问题。在同一个 Whosebug 讨论中，我注意到有人在谈论 hyper-V。

以防万一，我前段时间在我的 Windows 10 中关闭了 Hyper-V，因为出于其他原因我不得不使用 VirtualBox (OpenShift/minishift)。我不认为它与我的问题有关系，因为直到 2 天前我还没有遇到端口 5037 的此类问题。顺便说一句，我很好奇：Androids 模拟器是否以某种方式依赖于 HyperV？

*** 在 Jacob 的评论后编辑

1) 在我开始 Android Studio 之前，我没有像预期的那样连接到 5037

C:\Users>netstat -ano | findstr "5037"

2) 然后我启动了 Android Studio，我看到至少三个到端口 5037 的连接。

C:\Users\Cast>netstat -ano | findstr "5037"
  TCP    127.0.0.1:5037         0.0.0.0:0              LISTENING       11880
  TCP    127.0.0.1:5037         127.0.0.1:54602        ESTABLISHED     11880
  TCP    127.0.0.1:54602        127.0.0.1:5037         ESTABLISHED     348

3) 当我点击调试应用程序 (shift + F9) 时，我在 Android Studio

的左下角收到两条消息错误

Emulator: emulator: ERROR: AdbHostServer.cpp:102: Unable to connect to adb daemon on port: 5037

Emulator: socketTcpLoopbackClientFor: error: fd 56668 above FD_SETSIZE (32768)

和大量的TIME WAIT连接。我觉得很奇怪。

C:\Users>netstat -ano | findstr "5037"
  TCP    127.0.0.1:5037         0.0.0.0:0              LISTENING       11880
  TCP    127.0.0.1:5037         127.0.0.1:54602        ESTABLISHED     11880
  TCP    127.0.0.1:5037         127.0.0.1:54631        ESTABLISHED     11880
  TCP    127.0.0.1:5037         127.0.0.1:54643        ESTABLISHED     11880
  TCP    127.0.0.1:5037         127.0.0.1:54647        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54648        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54649        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54650        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54662        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54663        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54665        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54666        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54667        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54668        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54669        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54670        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54671        ESTABLISHED     11880
  TCP    127.0.0.1:5037         127.0.0.1:54672        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54673        ESTABLISHED     11880
  TCP    127.0.0.1:5037         127.0.0.1:54674        TIME_WAIT       0
  TCP    127.0.0.1:54602        127.0.0.1:5037         ESTABLISHED     348
  TCP    127.0.0.1:54631        127.0.0.1:5037         ESTABLISHED     5224
  TCP    127.0.0.1:54634        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:54636        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:54639        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:54641        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:54643        127.0.0.1:5037         ESTABLISHED     348
  TCP    127.0.0.1:54671        127.0.0.1:5037         ESTABLISHED     348
  TCP    127.0.0.1:54673        127.0.0.1:5037         ESTABLISHED     348

C:\Users>

整个事件日志

01/06/2020
00:08   Gradle sync started
00:08   * daemon not running; starting now at tcp:5037
00:08   * daemon started successfully
00:08   Gradle sync finished in 2 s 418 ms (from cached state)
00:08   Executing tasks: [:app:assembleDebug] in project C:\WSs\FireStoreDemos\AppFirestore
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56296 above FD_SETSIZE (32768)
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56296 above FD_SETSIZE (32768)
00:08   Emulator: emulator: ERROR: AdbHostServer.cpp:102: Unable to connect to adb daemon on port: 5037
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56668 above FD_SETSIZE (32768)
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56668 above FD_SETSIZE (32768)
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56928 above FD_SETSIZE (32768)
00:08   Emulator: socketTcpLoopbackClientFor: error: fd 56928 above FD_SETSIZE (32768)
00:08   Gradle build finished in 19 s 659 ms
00:08   Install successfully finished in 584 ms.: App restart successful without requiring a re-install.

*** 在更改 ADB 端口后编辑

我在 Windows 环境中将 ANDROID_ADB_SERVER_PORT 更改为 5038 并重新启动 Android Studio，我仍然看到一些 5037 正在等待连接。

在 Windows

中更改环境变量 ANDROID_ADB_SERVER_PORT 后

C:\Users\>netstat -ano | findstr "5037"
  TCP    127.0.0.1:5037         127.0.0.1:54643        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54671        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:54673        TIME_WAIT       0
  TCP    127.0.0.1:5037         127.0.0.1:55204        TIME_WAIT       0
  TCP    127.0.0.1:54602        127.0.0.1:5037         TIME_WAIT       0
  TCP    127.0.0.1:54631        127.0.0.1:5037         TIME_WAIT       0

C:\Users\>netstat -ano | findstr "5038"
  TCP    127.0.0.1:5038         0.0.0.0:0              LISTENING       7912
  TCP    127.0.0.1:5038         127.0.0.1:55238        ESTABLISHED     7912
  TCP    127.0.0.1:55238        127.0.0.1:5038         ESTABLISHED     11368

Answer 1

这可能是权限不足造成的。运行 Android Studio 或您的命令提示符（无论您喜欢哪个）作为管理员应该可以解决您的问题。

Answer 2

我遇到了和你一样的错误。我通过更新 Android Studio 中的所有内容（包括 SDK）来修复它。之后，我擦除模拟器和运行程序上的数据。它就像一个魅力，希望你也能修复你的。

Answer 3

同时请检查环境变量中定义的PATH是否正确。打开命令提示符输入 ECHO %PATH% 并按下 Enter 键检查屏幕上显示的路径

如果PATH不对，在开始-env-环境变量-路径中修改

Answer 4

1. emulator -list-avds
2. adb start-server 
3. emulator -avd <avd_name>

如果你看到 PANIC: Missing emulator engine program for 'x86' CPU.

那你可以试试

1. emulator -list-avds
2. adb start-server
3. $ANDROID_HOME/emulator/emulator @name_device

对于冷启动使用标志 -no-snapshot 和 -no-snapshot-load

Answer 5

尝试通过 cd 到你的平台工具目录和运行 adb start-server 来启动 adb 守护进程，然后再次模拟你的虚拟设备，你可能会成功

Answer 6

有时会出现问题，因为您在 windows 中有虚拟机，并且 windows 10 禁用 windows 功能的方式各不相同。

所以如果你使用windows 10 Pro，那么你必须确保关闭hyper V和虚拟机平台。

然后重启电脑即可修复错误。

别忘了运行

adb 启动服务器
emulator -adb "andname"

并确保为

设置环境

ANDROID_AVB_HOME = C:\Users\fernando.android\avd

然后在路径中添加模拟器目录

C:\Users"用户名"\AppData\Local\Android\Sdk\emulator
C:\Users"用户名"\AppData\Local\Android\Sdk\emulator\bin64
C:\Users"用户名"\AppData\Local\Android\Sdk\platform-tools
C:\Users\fernando\AppData\Local\Android\Sdk\tools
C:\Users\fernando\AppData\Local\Android\Sdk\tools\bin

确保一切都井井有条。

加油希望对大家有帮助

Emulator: emulator: ERROR: AdbHostServer.cpp:102: Unable to connect to adb daemon on port: 5037

Emulator: emulator: ERROR: AdbHostServer.cpp:102: Unable to connect to adb daemon on port: 5037

android

android-studio

android-emulator

android-sdk-tools

android-sdk-2.3