如下配置显示报错：

//少个- <!- https://mvnrepository.com/artifact/org.apache.spark/spark-sql -->

<dependency>
    <groupId>org.apache.spark</groupId>
    <artifactId>spark-sql_2.11</artifactId>
    <version>2.4.5</version>
    <scope>provided</scope>
</dependency>

换成：

<dependency>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-sql_2.11</artifactId>
     <version>2.4.5</version>
 </dependency>