Android App Engine模块找不到AppCompat库



我最近在遵循本教程时向我的应用中添加了一个应用引擎模块:

https://cloud.google.com/appengine/docs/java/endpoints/helloendpoints-android-studio

我的EndpointSasynCtask(应用程序引擎模块内)看起来像:

import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.extensions.android.json.AndroidJsonFactory;
import     com.google.api.client.googleapis.services.AbstractGoogleClientRequest;
import com.google.api.client.googleapis.services.GoogleClientRequestInitializer;
import com.google.appengine.repackaged.com.google.common.base.Pair;
import java.io.IOException;
import javax.naming.Context;

class EndpointsAsyncTask extends AsyncTask<Pair<Context, String>, Void,  String> {
    private static MyApi myApiService = null;
    private Context context;
    @Override
    protected String doInBackground(Pair<Context, String>... params) {
        if(myApiService == null) {  // Only do this once
            MyApi.Builder builder = new     MyApi.Builder(AndroidHttp.newCompatibleTransport(),
                new AndroidJsonFactory(), null)
                // options for running against local devappserver
                // - 10.0.2.2 is localhost's IP address in Android emulator
                // - turn off compression when running against local devappserver
                .setRootUrl("http://10.0.2.2:8080/_ah/api/")
                .setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
                    @Override
                    public void initialize(AbstractGoogleClientRequest<?> abstractGoogleClientRequest) throws IOException {
                        abstractGoogleClientRequest.setDisableGZipContent(true);
                    }
                });
        // end options for devappserver
        myApiService = builder.build();
    }
    context = params[0].first;
    String name = params[0].second;
    try {
        return myApiService.sayHi(name).execute().getData();
    } catch (IOException e) {
        return e.getMessage();
    }
}
@Override
protected void onPostExecute(String result) {
    Toast.makeText(context, result, Toast.LENGTH_LONG).show();
}

}

我得到'无法解决符号/方法'asynctask,.build(),.sayhi()和吐司,只是提及一些。

我开始绑扎以弄清楚问题是什么,并意识到那些拍拍的进口是不在那里的。所以,我绑了添加:

import android.os.Bundle;

然后从那里继续进行。不幸的是,这些也给了我错误。

所以,我在build.gradle文件中查看,并意识到AppCompat依赖性不存在。

我的build.gradle for App Engine模块看起来像这样:

// If you would like more information on the gradle-appengine-plugin please refer to the github page
// https://github.com/GoogleCloudPlatform/gradle-appengine-plugin
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.google.appengine:gradle-appengine-plugin:1.9.34'
    }
}
repositories {
    jcenter()
}
apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'appengine'
sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7
dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.0.1'
    compile 'com.google.appengine:appengine-endpoints:1.9.34'
    compile 'com.google.appengine:appengine-endpoints-deps:1.9.34'
    compile 'javax.servlet:servlet-api:2.5'
    compile 'com.google.http-client:google-http-client-android:1.20.0'
    compile 'com.google.api-client:google-api-client:1.20.0'
    appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.34'
    }
appengine {
    downloadSdk = true
    appcfg {
        oauth2 = true
    }
    endpoints {
        getClientLibsOnBuild = true
        getDiscoveryDocsOnBuild = true
    }
}

现在,当构建我的项目时,会出现错误:

Error:(25, 13) Failed to resolve: com.android.support:appcompat-v7:25.0.1

我是否缺少App Engine模块的工作方式,还是我的问题不是AppCompat?在消息窗口中,它为我提供了"安装存储库和同步督辆托索的选项,但是当我单击它时,什么也不会发生。

任何帮助将不胜感激,谢谢!

好吧,我想我已经弄清楚了问题所在。我的端点Sasynctask旨在在应用模块中而不是附件。如果有人能验证这一点,我将不胜感激!

我希望这对可能会被教程混淆的其他任何人。

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