项目通过 clean tomcat7:run 启动报A child container failed during start问题

[ziwg]

经过一番折腾，发现时servlet-api版本问题，加入如下插件可以启动成功
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.0.1</version>
    <scope>provided</scope>
</dependency>