<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>2.18.1</version>            //这里报错
				<configuration>
					<forkMode>once</forkMode>
					<argLine>-Dfile.encoding=UTF-8</argLine>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-javadoc-plugin</artifactId>
				<version>2.10.3</version>    //这里报错
				<configuration>
					<additionalparam>-Xdoclint:none</additionalparam>
				</configuration>
			</plugin>

版本号报错,请问是什么原因