Question

我对此做了一些研究，似乎是由于某些版本不匹配。我试图解决这个问题很长一段时间，并不确定修复。任何帮助是极大的赞赏。

这是我的pom.xml

        <properties>
        <scala.version>1.6.2</scala.version>
      </properties>
        <dependencies>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-core_2.11</artifactId>
                <version>1.6.2</version>
            </dependency>

            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-sql_2.11</artifactId>
                <version>${scala.version}</version>
            </dependency>

            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-mllib_2.11</artifactId>
                <version>${scala.version}</version>
            </dependency>

            <dependency>
                <groupId>org.scala-lang</groupId>
                <artifactId>scala-library</artifactId>
                <version>2.11.8</version>
                <scope>compile</scope>
            </dependency>
        </dependencies>

这是我正在使用的maven scala插件配置：

   <plugin>
                        <groupId>org.scala-tools</groupId>
                        <artifactId>maven-scala-plugin</artifactId>
                        <version>2.11</version>
                        <executions>
                            <execution>
                                <goals>
                                    <goal>compile</goal>
                                </goals>
                            </execution>
                        </executions>
                        <configuration>
                            <scalaVersion>2.11.8</scalaVersion>
                        </configuration>
                    </plugin>

异常追踪：

--- 2017-09-06 09:54:21,676 INFO SparkUI: Started SparkUI at http://10.222.159.160:4040 (org.apache.spark.ui.SparkUI)
    Exception in thread "main" java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror(Ljava/lang/ClassLoader;)Lscala/reflect/api/JavaUniverse$JavaMirror;
        at com.abc.ModelTrn$.prepare(ModelTrn.scala:64)
        at com.abc.ModelTrn$.main(ModelTrn.scala:20)
        at com.abc.ModelTrn.main(ModelTrn.scala)
        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)

Answer 1

无法重现。我用pom.xml创建了Maven项目。然后我运行标准WordCount。它工作正常。你能更具体地说明你在做什么吗？

顺便提一下，您是否检查了此例外的先前答案？

java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror

Getting exception : java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror(Ljava/lang/ClassLoader;) while using data frames

java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror(Ljava/lang/ClassLoader;) :Sparkcassandra connector

获取异常Lscala / reflect / api / JavaUniverse $ JavaMirror;

1 个答案: