MAVEN Project update maven project error: Dynamic Web Module 3.0 requires Java 1.6 or newer

Tools: Eclipse Mars

Environment: JDK1.8,TOMCAT8

Error:

　　

Description: The MAVEN project specifies the compilation environment by default and I specify JRE 1.5 by default. This is not related to the Java compiler that you set up and needs to be specified in Pom.xml. Add the following code between <build></build>:

<plugins>        <plugin>            <groupId>org.apache.maven.plugins</groupId>            < artifactid>maven-compiler-plugin</artifactid>            <version>3.0</version>            < Configuration>                <!--Specify the version of the JRE you need, specified here jre1.8-                               <source>1.8</source>                < target>1.8</target>            </configuration>        </plugin>  </plugins>

After joining, Window System platform shortcut key ALT+F5, select the specified item, click OK.

MAVEN Project update maven project error: Dynamic Web Module 3.0 requires Java 1.6 or newer