尝试构建Apache Nutch 2.3.1时出现未解决的依赖项错误

<dependencies>
    <dependency>
        <groupId>org.apache.nutch</groupId>
        <artifactId>nutch</artifactId>
        <version>2.3.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.hadoop</groupId>
        <artifactId>hadoop-common</artifactId>
        <version>2.7.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.gora</groupId>
        <artifactId>gora-core</artifactId>
        <version>0.8</version>
    </dependency>
    <!-- 添加其他必要的依赖项 -->
</dependencies>

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.apache.nutch</groupId>
    <artifactId>nutch</artifactId>
    <version>2.3.1</version>
    <dependencies>
        <dependency>
            <groupId>org.apache.nutch</groupId>
            <artifactId>nutch</artifactId>
            <version>2.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>2.7.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.gora</groupId>
            <artifactId>gora-core</artifactId>
            <version>0.8</version>
        </dependency>
        <!-- 添加其他必要的依赖项 -->
    </dependencies>
</project>