无法启动Appium会话，错误是：错误：应用程序错误：

Question

我想在我的Android设备上自动化Facebook应用程序。

我试图像这样启动一个驱动程序：

    private AppiumDriver driver;

    @Before
    public void setUp() throws Exception {
        File classpathRoot = new File(System.getProperty("user.dir"));
        File appDir = new File(classpathRoot, "../../../data/app/ ");
        File app = new File(appDir, "Facebook.apk");
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
        capabilities.setCapability("deviceName","Android Emulator");
        capabilities.setCapability("platformVersion", "4.4");
        capabilities.setCapability("platformName","Android");
        capabilities.setCapability("app", app.getAbsolutePath());


//        capabilities.setCapability("appPackage", "com.example.android.apis");
//        capabilities.setCapability("appActivity", ".ApiDemos");
        driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
    }

我得到了：

info: --> POST /wd/hub/session {"desiredCapabilities":{"app":"/Users/eladb/WorkspaceQa/myAppiumExm/../../../data/app/ /Facebook.apk","platformVersion":"4.4","browserName":"","platformName":"Android","deviceName":"Android Emulator"}}

info: Client User-Agent string: Apache-HttpClient/4.3.4 (java 1.5)

error: Failed to start an Appium session, err was: Error: Bad app: /Users/data/app/ /Facebook.apk. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: Error locating the app: ENOENT, stat '/Users/data/app/ /Facebook.apk'

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: /Users/data/app/ /Facebook.apk
info: [debug] Got configuration error, not starting session
info: [debug] Cleaning up appium session
info: [debug] Error: Bad app: /Users/data/app/ /Facebook.apk. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: Error locating the app: ENOENT, stat '/Users/data/app/ /Facebook.apk'
    at null.<anonymous> (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/android/android-common.js:56:13)
    at /Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/device.js:81:16
    at FSReqWrap.oncomplete (fs.js:99:15)
info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: Bad app: /Users/data/app/ /Facebook.apk. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: Error locating the app: ENOENT, stat '/Users/data/app/ /Facebook.apk')","origValue":"Bad app: /Users/data/app/ /Facebook.apk. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: Error locating the app: ENOENT, stat '/Users/data/app/ /Facebook.apk'"},"sessionId":null}
info: <-- POST /wd/hub/session 500 8.318 ms - 628 

我试过了：

        capabilities.setCapability("app", "Facebook.apk"); 

我得到了：

error: Failed to start an Appium session, err was: Error: Bad app: null. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: You passed in an app package as the 'app' capability, but didn't include appActivity. We need to know that too in order to start your app

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] Got configuration error, not starting session
info: [debug] Cleaning up appium session
info: [debug] Error: Bad app: null. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: You passed in an app package as the 'app' capability, but didn't include appActivity. We need to know that too in order to start your app
    at null.<anonymous> (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/android/android-common.js:56:13)
    at androidCommon.configureApp (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/android/android-common.js:69:14)
    at androidCommon.configure (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/android/android-common.js:37:10)
    at Appium.configure (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:250:15)
    at null.<anonymous> (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:118:10)
    at Appium.start (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:129:5)
    at Object.exports.createSession [as handle] (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/server/controller.js:182:16)
    at next_layer (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/router/route.js:113:13)
    at Route.dispatch (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/router/route.js:117:5)
    at /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/router/index.js:222:24
info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: Bad app: null. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: You passed in an app package as the 'app' capability, but didn't include appActivity. We need to know that too in order to start your app)","origValue":"Bad app: null. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: You passed in an app package as the 'app' capability, but didn't include appActivity. We need to know that too in order to start your app"},"sessionId":null}
info: <-- POST /wd/hub/session 500 9.616 ms - 712 

error: Unexpected error: Error: Can't set headers after they are sent.
    at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:335:11)
    at ServerResponse.res.set.res.header (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/response.js:561:10)
    at ServerResponse.res.send (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/response.js:133:12)
    at ServerResponse.res.json (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/response.js:210:15)
    at ServerResponse.res.send (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/response.js:121:21)
    at /Applications/Appium.app/Contents/Resources/node_modules/appium/lib/server/helpers.js:42:9
    at safely (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/server/helpers.js:306:5)
    at Layer.module.exports.catchAllHandler [as handle] (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/server/helpers.js:41:3)
    at trim_prefix (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/router/index.js:261:17)
    at /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/express/lib/router/index.js:225:9 context: [POST /wd/hub/session {"desiredCapabilities":{"app":"Facebook.apk","platformVersion":"4.4","browserName":"","platformName":"Android","deviceName":"Android Emulator"}}]
TypeError: Cannot set property 'onResetTimeout' of null
    at Appium.configure (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:252:30)
    at null.<anonymous> (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:118:10)
    at Appium.start (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/appium.js:129:5)

我怎样才能让它发挥作用？

更新

我试过了：

    @Before
    public void setUp() throws Exception {
        File classpathRoot = new File(System.getProperty("user.dir"));
        File appDir = new File(classpathRoot, "../../../data/app/");
        File app = new File(appDir, "Facebook.apk");
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
        capabilities.setCapability("deviceName","Android Emulator");
        capabilities.setCapability("platformVersion", "4.4");
        capabilities.setCapability("platformName","Android");
        capabilities.setCapability("app", app.getCanonicalPath());

//        capabilities.setCapability("appPackage", "com.example.android.apis");
//        capabilities.setCapability("appActivity", ".ApiDemos");
        driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);

得到了：

org.openqa.selenium.SessionNotCreatedException: A new session could not be created. (Original error: Bad app: /Users/data/app/Facebook.apk. App paths need to be absolute, or relative to the appium server install dir, or a URL to compressed file, or a special app name. cause: Error: Error locating the app: ENOENT, stat '/Users/data/app/Facebook.apk') (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 900 milliseconds
Build info: version: '2.43.1', revision: '5163bceef1bc36d43f3dc0b83c88998168a363a0', time: '2014-09-10 09:43:55'
System info: host: 'eladb-macbookpro.roam.corp.google.com', ip: '10.0.0.2', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.9.5', java.version: '1.8.0_25'

Answer 1

我现在无法验证它，但我的猜测是你有一个空白区域产生一些问题：

1. private AppiumDriver driver;
2.
3. @Before
4. public void setUp() throws Exception {
5.    File classpathRoot = new File(System.getProperty("user.dir"));
6.    File appDir = new File(classpathRoot, "../../../data/app/ "); // <== HERE
7.    File app = new File(appDir, "Facebook.apk");
8.    ...

Appium日志告诉您生成的路径是：

"app":"/Users/eladb/WorkspaceQa/myAppiumExm/../../../data/app/ /Facebook.apk"

"app/ "第6行中的空格导致最终路径为"/Users/eladb/WorkspaceQa/myAppiumExm/../../../data/app/ /Facebook.apk"。我会像这样重写第6行：

File appDir = new File(classpathRoot, "../../../data/app/");

而不是"app/ "，请使用"...app/"

规范路径

我还没有使用Java一段时间，所以我不记得IO API是如何工作的，但是你应该找到一种更好的方法来获取appfile的绝对路径，因为你有一个使用它的最终地址父文件夹模式../来访问资源......这不是最好的。最终的路径应该是：

"app":"/Users/data/app/Facebook.apk"

我是对的吗？在this answer中，您可以看到可能应该使用getCanonicalPath而不是getAbsolutePath。

如果我的猜测正确，则以下代码应该有效：

public void setUp() throws Exception {
    File classpathRoot = new File(System.getProperty("user.dir"));
    File appDir = new File(classpathRoot, "../../../data/app/");
    File app = new File(appDir, "Facebook.apk");
    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
    capabilities.setCapability("deviceName","Android Emulator");
    capabilities.setCapability("platformVersion", "4.4");
    capabilities.setCapability("platformName","Android");
    capabilities.setCapability("app", app.getCanonicalPath());
    driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
}

如果您想自动化现有应用程序......

看起来您可能想要自动化现有应用，Android的功能集如下：

public void setUp() throws Exception {
    DesiredCapabilities capabilities = new DesiredCapabilities();
    capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
    capabilities.setCapability("deviceName","Android Emulator");
    capabilities.setCapability("platformVersion", "4.4");
    capabilities.setCapability("platformName","Android");
    capabilities.setCapability("appPackage", "<java-package-name-of-the-app>");
    capabilities.setCapability("appActivity", "<android-app-activity-name>");
    driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
}

如果您检查设置，可以在您应用的媒体资源中找到这些新功能：appPackage和appActivity。

Answer 2

我什么都没做，只是清理了Mac中的空间，它起作用了。！