Maven报错 解决方案。ERROR: No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id

报错：

[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile,

解决方式：

打开pom.xml 在build节点中 增加

<defaultGoal>compile</defaultGoal>

...
    <build>
<defaultGoal>compile</defaultGoal>
		
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.12.3</version>
                <configuration>
                    <groups>unit</groups>
                </configuration>
            </plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.0</version>
				<configuration>
				  <verbose>true</verbose>
				  <fork>true</fork>
				  <compilerVersion>1.5</compilerVersion>
				</configuration>
			</plugin>
			
        </plugins>
    </build>
</project>