Appium 会话，找不到连接的 Android 设备。显示错误

Question

Appium 会话，找不到已连接的 Android 设备。在eclipse中显示错误

如果有人知道如何解决，请告诉我。

**Junit 代码：- **

    import static org.junit.Assert.*;
    import java.io.File;
    import java.net.MalformedURLException;
    import java.net.URL;
    import org.junit.Test;
    import org.openqa.selenium.remote.DesiredCapabilities;
    import io.appium.java_client.android.AndroidDriver;
    import io.appium.java_client.remote.MobileCapabilityType;
    import io.appium.java_client.remote.MobilePlatform;

    public class desiredCapab {

        @Test
        public void test() throws MalformedURLException {

            File appDir = new File("C:\\Eclipse-Neon\\Project\\AppiumT\\Apk\\");

                File app = new File (appDir, "WhatsApp.apk");


            DesiredCapabilities cap = new DesiredCapabilities();
            cap.setCapability(MobileCapabilityType.PLATFORM_NAME,MobilePlatform.ANDROID);
cap.setCapability(MobileCapabilityType.DEVICE_NAME, "Android Emulator");
cap.setCapability(MobileCapabilityType.APP, app.getAbsolutePath());

AndroidDriver driver = new AndroidDriver(new URL ("http://127.0.0.1:4723/wd/hub"), cap);

            //{"address":"127.0.0.1","logNoColors":true,"platformName":"Android","platformVersion":"23","automationName":"Appium"}
        }
    }

Eclipse Junit 错误：-

org.openqa.selenium.SessionNotCreatedException：无法创建新会话。 （原始错误：找不到连接的 Android 设备。）（警告：服务器未提供任何堆栈跟踪信息） 命令持续时间或超时：28.61 秒 构建信息：版本：'2.49.0'，修订：'365eeb4'，时间：'2016-01-13 18:33:29' 系统信息：主机：'DESKTOP-PC1SJR4'，ip：'192.168.1.104'，os.name：'Windows 10'，os.arch：'amd64'，os.version：'10.0'，java.version：'1.8 .0_91'

AVD 管理器设置：- 图片

Appium :- 错误信息

> info: --> POST /wd/hub/session {"desiredCapabilities":{"app":"C:\\Eclipse-Neon\\Project\\AppiumT\\Apk\\WhatsApp.apk","platformName":"Android","deviceName":"Android Emulator"}}
> info: Client User-Agent string: Apache-HttpClient/4.5.1 (Java/1.8.0_91)
> info: [debug] No appActivity desired capability or server param. Parsing from apk.
> info: [debug] No appPackage desired capability or server param. Parsing from apk.
> info: [debug] Using local app from desired caps: C:\Eclipse-Neon\Project\AppiumT\Apk\WhatsApp.apk
> info: [debug] Creating new appium session c9232f90-f519-4058-9e80-22cd2830de57
> info: Starting android appium
> info: [debug] Getting Java version
> info: Java version is: 1.8.0_101
> info: [debug] Checking whether adb is present
> info: [debug] Using adb from C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe
> info: [debug] Parsing package and activity from app manifest
> info: [debug] Checking whether aapt is present
> info: [debug] Using aapt from C:\Users\bizBoxChat\AppData\Local\Android\sdk\build-tools\24.0.3\aapt.exe
> info: [debug] Extracting package and launch activity from manifest.
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\build-tools\24.0.3\aapt.exe dump badging C:\Eclipse-Neon\Project\AppiumT\Apk\WhatsApp.apk
> info: [debug] badging package: com.whatsapp
> info: [debug] badging act: com.whatsapp.Main
> info: [debug] Parsed package and activity are: com.whatsapp/com.whatsapp.Main
> info: [debug] Using fast reset? true
> info: [debug] Preparing device for session
> info: [debug] Checking whether app is actually present
> info: Retrieving device
> info: [debug] Trying to find a connected android device
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Could not find devices, restarting adb server...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe kill-server
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Could not find devices, restarting adb server...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe kill-server
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Could not find devices, restarting adb server...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe kill-server
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Could not find devices, restarting adb server...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe kill-server
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Sent shutdown command, waiting for UiAutomator to stop...
> warn: UiAutomator did not shut down fast enough, calling it gone
> info: [debug] Cleaning up android objects
> info: [debug] Cleaning up appium session
> error: Failed to start an Appium session, err was: Error: Could not find a connected Android device.
> info: [debug] Error: Could not find a connected Android device.
>     at [object Object].ADB.getDevicesWithRetry (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:606:15)
>     at [object Object].androidCommon.prepareActiveDevice (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:400:12)
>     at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:326:26)
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:607:21
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:246:17
>     at iterate (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:146:13)
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:157:25
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:248:21
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:612:34
>     at [object Object].androidCommon.ensureDeviceLocale (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:371:45)
>     at [object Object].androidCommon.prepareEmulator (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:364:10)
>     at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:325:26)
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:607:21
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:246:17
>     at iterate (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:146:13)
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:157:25
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:248:21
>     at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:612:34
>     at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:344:9)
>     at FSReqWrap.oncomplete (fs.js:95:15)
> info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: Could not find a connected Android device.)","origValue":"Could not find a connected Android device."},"sessionId":null}
> info: <-- POST /wd/hub/session 500 28492.200 ms - 206

Answer 1

上述错误的原因是，找不到任何设备或 AVD 连接。您的错误消息中的以下几行显示了这一点：

> info: [debug] Trying to find a connected android device
> info: [debug] Getting connected devices...
> info: [debug] executing cmd: C:\Users\bizBoxChat\AppData\Local\Android\sdk\platform-tools\adb.exe devices
> info: [debug] 0 device(s) connected
> info: [debug] Could not find devices, restarting adb server...

> info: [debug] Error: Could not find a connected Android device.

仅在 AVD 管理器中创建 AVD 是不够的。它必须启动并运行（启动并准备好）。为此，请在 AVD 管理器中选择任何 AVD，然后单击“开始”按钮。让 AVD 启动。等待。 （它类似于打开真实设备。） 或者，需要连接一些真实设备。在该设备中，“开发者选项”应该是开启的。 “USB 调试”应该打开。

转到命令提示符并运行以下命令：

adb devices

预期输出：某些设备或 AVD 应显示为已连接。 一旦您看到任何设备或 AVD 已连接，然后重试，您的问题就会得到解决。

注意： 在命令窗口中运行“adb devices”命令时，如果您看到类似“abd.exe 是无法识别的内部或外部命令或批处理文件...”的消息，那么您需要在路径中有 adb.exe。您可以在环境变量中添加它的路径，或者在运行“adb devices”之前简单地运行以下命令：

set path=%PATH%;"D:\AndroidSDK\platform-tools"

注意 adb.exe 文件在我的 PC 上的 platform-tools 文件夹中，在 Android SDK 文件夹中。您需要修改此路径，因为它在您的 PC 上。

Answer 2

尝试使用真实设备，因为模拟器非常慢，启动时间也需要更多时间。即使是真正的设备我也面临这种问题，

预期原因：

1. Android 模拟器启动问题
2. 亚行问题
3. 系统配置

如果 adb 问题，您需要在您的 cmd 中运行以下命令：

adb kill-server
adb start-server

然后您尝试使用 Android 模拟器并确保您的系统有足够的内存，这些模拟器（如 VM）将占用您系统的 CPU 和内存。