현상

Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.5:war (default-war) on project melon-movingimage-app: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]
[ERROR] 

원인

boot parent를 없앴을때 아래의 마크업을 잃어버려서 발생

해결방법

아래의 방법으로 해결

<plugin>
            <groupid>org.apache.maven.plugins</groupid>
            <artifactid>maven-war-plugin</artifactid>
            <version>2.6</version>
            <configuration>
                <failonmissingwebxml>false</failonmissingwebxml>
            </configuration>
</plugin>