MAVEN: Error assembling WAR: webxml attribute is required

环境：MyEclipse2015 CI+Maven3

使用Maven创建一个Web project（创建方法参考《如何用Maven创建web项目（具体步骤）》），执行maven
install时出现错误。

[INFO] ------------------------------------------------------------------------

[INFO] BUILD FAILURE

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 3.152 s

[INFO] Finished at: 2015-05-19T16:41:50+08:00

[INFO] Final Memory: 9M/21M

[INFO] ------------------------------------------------------------------------

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.4:war (default-war) on project TestWebApp: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing
in update mode) -> [Help 1]

[ERROR]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR]

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
原因：目录/src/main/webapp/WEB-INF/下没有web.xml文件；

解决方案：在该目录下新建文件web.xml

效果：成功