Hello,

I have existing maven project and like to be included into multi module project, I added <module> into parent pom.xml, also added <parent> into existing project, but I got error " cannot find child module when I run maven build

Yi

Hello Yi,

Is your parent pom in a parent directory of your module project? If not, you need to add <relativePath> element to your module project and refer to it in parent pom using relative path as well. E.g.; if your directory structure look like this:

Code:

Workspace/   parent-project/     pom.xml   child-project/     pom.xml

Assuming your parent-project pom.xml entries looks like:

Code:

<groupId>com.example</groupId>   <artifactId>example-parent</artifactId>   <version>1.0.0-SNAPSHOT</version>   <packaging>pom</packaging>

you need to add:

Code:

<modules>     <module>../child-project</module>   </modules>

and in child-project pom.xml you need to specify parent pom with a relative path:

Code:

<parent>     <groupId>com.example</groupId>     <artifactId>example-parent</artifactId>     <version>1.0.0-SNAPSHOT</version>     <relativePath>../parent-project</relativePath>   </parent>

I hope it helps! Let us know if you have any other problems.

Thanks, Piotrek

The module with relative path did the trick

Yi,

Glad that it worked.
Do let us know if you see any issues.