斯坦福CoreNLP简单API错误

Question

我只是想运行一个简单的例子来开始使用CoreNLP从here。我已经将coreNLP和模型3.6添加到我的pom.xml中。我也为我的pom添加了com.google.protobuf（3.0.0-beta-3）。

这是我的代码如下所示：

Document doc = new Document("add your text here! It can contain multiple sentences."); 
     for (Sentence sent : doc.sentences()) { // Will iterate over two sentences 
      // We're only asking for words -- no need to load any models yet 

      System.out.println("The second word of the sentence '" + sent + "' is " + sent.word(1)); 
      // When we ask for the lemma, it will load and run the part of speech tagger 
      System.out.println("The third lemma of the sentence '" + sent + "' is " + sent.lemma(2)); 
      // When we ask for the parse, it will load and run the parser 
      System.out.println("The parse of the sentence '" + sent + "' is " + sent.parse()); 
      // ... 
     } 

而这里的例外：

java.lang.NoSuchMethodError: edu.stanford.nlp.util.ArrayCoreMap.keySetNotNull()Ljava/util/Set; at edu.stanford.nlp.pipeline.ProtobufAnnotationSerializer.toProtoBuilder(ProtobufAnnotationSerializer.java:377) at edu.stanford.nlp.pipeline.ProtobufAnnotationSerializer.toProtoBuilder(ProtobufAnnotationSerializer.java:332) at edu.stanford.nlp.simple.Document.sentences(Document.java:480) at edu.stanford.nlp.simple.Document.sentences(Document.java:499)

UPDATE：

我刚刚降级的protobuf到2.6.1，仍然同样的问题。在这里，我的pom看起来像：

<dependencies> 
    <dependency> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
     <version>5.1.38</version> 
    </dependency> 
    <dependency> 
     <groupId>com.google.inject</groupId> 
     <artifactId>guice</artifactId> 
     <version>4.0</version> 
    </dependency> 
    <dependency> 
     <groupId>com.google.inject.extensions</groupId> 
     <artifactId>guice-servlet</artifactId> 
     <version>4.0</version> 
    </dependency> 

    <dependency> 
     <groupId>org.apache.commons</groupId> 
     <artifactId>commons-io</artifactId> 
     <version>1.3.2</version> 
    </dependency> 
    <dependency> 
     <groupId>javax.persistence</groupId> 
     <artifactId>persistence-api</artifactId> 
     <version>1.0.2</version> 
    </dependency> 
     <dependency> 
     <groupId>javax.transaction</groupId> 
     <artifactId>jta</artifactId> 
     <version>1.1</version> 
    </dependency> 
    <dependency> 
     <groupId>org.jsoup</groupId> 
     <artifactId>jsoup</artifactId> 
     <version>1.8.3</version> 
    </dependency> 
    <dependency> 
     <groupId>edu.stanford.nlp</groupId> 
     <artifactId>stanford-corenlp</artifactId> 
     <version>3.6.0</version> 
    </dependency> 
    <dependency> 
     <groupId>edu.stanford.nlp</groupId> 
     <artifactId>stanford-corenlp</artifactId> 
     <version>3.6.0</version> 
     <classifier>models</classifier> 
    </dependency> 
    <dependency> 
     <groupId>com.google.protobuf</groupId> 
     <artifactId>protobuf-java</artifactId> 
     <version>2.6.0</version> 
    </dependency> 

    </dependencies> 

Answer 1

简单的API不适用于Proto v.3。它是用2.6.1编译的，尽管版本2中的任何东西都可以工作。