当尝试在Eclipse IDE中使用DataFlow运行Wordcount示例管道时，我收到以下错误：

Exception in thread "main" java.lang.RuntimeException: Failed to construct instance from factory method DataflowRunner#fromOptions(interface org.apache.beam.sdk.options.PipelineOptions)
    at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:233)
    at org.apache.beam.sdk.util.InstanceBuilder.build(InstanceBuilder.java:162)
    at org.apache.beam.sdk.PipelineRunner.fromOptions(PipelineRunner.java:55)
    at org.apache.beam.sdk.Pipeline.create(Pipeline.java:150)
    at com.google.cloud.dataflow.examples.WordCount.main(WordCount.java:178)

Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:222)
    ... 4 more

Caused by: java.lang.IllegalArgumentException: Missing object or bucket in path: 'gs://mysite-ga-datastreaming-196008-my-bucket/', did you mean: 'gs://some-bucket/mysite-ga-datastreaming-196008-my-bucket'?
    at org.apache.beam.sdks.java.extensions.google.cloud.platform.core.repackaged.com.google.common.base.Preconditions.checkArgument(Preconditions.java:383)
    at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.verifyPath(GcsPathValidator.java:77)
    at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.validateOutputFilePrefixSupported(GcsPathValidator.java:60)
    at org.apache.beam.runners.dataflow.DataflowRunner.fromOptions(DataflowRunner.java:246)
    ... 9 more

有些人认为这是因为Java版本的问题，似乎Beam在Java 9上不能很好地工作。不管怎样，我还在用Java 8。另一方面，也有人说错误是因为你必须在你的存储桶下提供一个子文件夹作为存储位置。我试过了，但还是不行。
如果任何人以前遇到过同样的问题，或能就错误提供任何建议，将不胜感激。