Maven multi-module build won't detect war during report aggregation

[kid1412621]

I follow here to create a dedicate module to aggregate report. My project is made of multi-module. And one of them is meant to package WAR according to maven profile setting.
When I change the profile to package WAR, the aggregation module turns out this error: Failure to find com.xxx.xxx:jar:3.1.1 in http://repo2.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of central-p has elapsed or updates are forced. But this module should package to WAR, instead of JAR.
And I specify the type of dependency to WAR in aggregation module. The error is gone.