依賴兄弟模塊時，執行mvn命令報錯：找不到依賴

有個項目是多模塊的，模塊A，模塊B。模塊A和B是同一個父pom下的兄弟模塊。模塊B依賴模塊A，但是模塊A又不需要部署到maven倉庫。當執行mvn dependency:tree的時候就會報下面的錯誤:

Could not resolve dependencies for project **moduleA**: The following artifacts could 
not be resolved: moduleA: Failure to find **moduleA 1.0.0**  in /nexus/content/groups/public/ was 
cached in the local repository,resolution will not be reattempted until 
the update interval of public has elapsed or updates are forced .

解決方法就是：先在父pom的目錄下，執行mvn install。然後在到子目錄執行mvn dependency:tree就可以了。