在bigquery中创建数据集时，Google App引擎出错

Question

我正在开发一个App Engine应用程序来从BigQuery进行查询。当我创建一个bigquery实例并在此之后我想要创建数据集或获取对数据集的引用时，会发生以下错误。这只发生在我在App Engine上部署应用程序但是当我使用本地应用程序引擎sdk来测试我的应用程序时我没有任何问题

java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
at com.google.api.gax.retrying.BasicRetryingFuture.<init> (BasicRetryingFuture.java:77)
at com.google.api.gax.retrying.DirectRetryingExecutor.createFuture (DirectRetryingExecutor.java:75)
at com.google.cloud.RetryHelper.runWithRetries (RetryHelper.java:53)
at com.google.cloud.bigquery.BigQueryImpl.getDataset (BigQueryImpl.java:227)
at com.google.cloud.bigquery.BigQueryImpl.getDataset (BigQueryImpl.java:218)
at com.example.Edmonds.myapplication.backend.MyServlet.doGet (MyServlet.java:75)
at javax.servlet.http.HttpServlet.service (HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service (HttpServlet.java:717)

我尝试这样做的部分如下：

InputStream ios = getServletContext().getResourceAsStream("/WEB-INF/BackendTestMac-f8739513cc27.json") ;
        FirebaseOptions options = new FirebaseOptions.Builder()
                .setServiceAccount(getServletContext().getResourceAsStream("/WEB-INF/BackendTestMac-f8739513cc27.json"))
                .setDatabaseUrl("https://backendtestmac.firebaseio.com/")
                .build();

BigQuery bigQuery = BigQueryOptions.newBuilder().setProjectId("backendtestmac").setCredentials(ServiceAccountCredentials.fromStream(ios)).build().getService() ;

 String datasetId = "my_dataset_id";
 Dataset dataset = bigQuery.create(DatasetInfo.newBuilder(datasetId).build()) ;

Answer 1

我正在做标准的应用程序引擎教程并遇到类似的异常：

在页面上：

    Error: Server Error
    The server encountered an error and could not complete your request.
    Please try again in 30 seconds

在服务器日志中

Error for /create
java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
    at com.google.api.gax.retrying.BasicRetryingFuture.<init>(BasicRetryingFuture.java:77)
    at com.google.api.gax.retrying.DirectRetryingExecutor.createFuture(DirectRetryingExecutor.java:75)
    at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:53)
    at com.google.cloud.storage.StorageImpl.create(StorageImpl.java:148)
    at com.google.cloud.storage.StorageImpl.create(StorageImpl.java:141)
    at com.example.getstarted.util.CloudStorageHelper.uploadFile(CloudStorageHelper.java:65)
    at com.example.getstarted.basicactions.CreateBookServlet.doPost(CreateBookServlet.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at com.example.getstarted.util.DatastoreSessionFilter.doFilter(DatastoreSessionFilter.java:98)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:37)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)

上传图片时，它在本地运行良好，但在升级到appspot时损坏

但是，在用户身份验证部分之后，一旦我登录，我没有收到错误。如果是匿名的 - 得到了那个错误。可能它最近在一个补丁中被打破了。因为我认为他们不会在没有提及的情况下发布核心教程。

教程链接是：https://cloud.google.com/java/getting-started-appengine-standard/tutorial-app

也许这有帮助。 Lemme知道你是否再找到了！

Answer 2

您应该检查应用程序的类路径。很可能你的CP上有一个旧版本的Guava