技術標籤：筆記mavenscalaspark

• 問題：Failed to load class XXX.
  
• 檢查pom.xml是否有如下內容：

	<build>
        <sourceDirectory>src/main/scala</sourceDirectory>
        <plugins>
            <plugin>
                <groupId>org.scala-tools</groupId>
                <artifactId>
 
maven-scala-plugin</artifactId>
                <version>2.15.2</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                        </goals>
                    </
 
execution>
                </executions>
                <configuration>
                    <scalaVersion>2.12.10</scalaVersion>
                    <args>
                        <arg>-target:jvm-1.8</arg>
                    </args>
                </
 
configuration>
            </plugin>
        </plugins>
    </build>