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  • idea运行scala有问题

    报这个错误:java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;

    网上说的是maven和自己本地安装的scala不一致造成的。

    解决方法,不引用自己的scala安装的,使用maven的

     <properties>
            <spark.version>2.2.1</spark.version>
            <scala.version>2.11</scala.version>
        </properties>
        <dependencies>
    
            <dependency>
                <groupId>org.codehaus.jettison</groupId>
                <artifactId>jettison</artifactId>
                <version>1.3.4</version>
            </dependency>
    
    
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-core_${scala.version}</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-streaming_${scala.version}</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-sql_${scala.version}</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-hive_${scala.version}</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-sql-kafka-0-10_2.11</artifactId>
                <version>2.2.1</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
                <version>2.2.1</version>
            </dependency>

    pom.xml文件

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  • 原文地址:https://www.cnblogs.com/kaiwen/p/9182881.html
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