Maven2 cannot find parent from relative path

maven, maven-2

Solution

You can't use a property for the parent version - it must match. At the moment this is required for the build to be reproducible at a later date. A number of people are tracking this on issue https://issues.apache.org/jira/browse/MNG-624

Problem

I'm trying to use Maven2 but my child projects cannot find the parent project. Directory structure is as follows: ``` --parent --pom.xml --child --pom.xml ``` Child pom.xml file looks like: ``` <parent> <groupId>com.mycompany.app</groupId> <artifactId>myapp</artifactId> <version>${app.version}</version> <relativePath>.../parent/pom.xml</relativePath> </parent> ``` However when I use maven it doesn't even seem to look in the relative path, it seems to try and download it from the maven repository. It's obviously not in the repo. I want it to look at the relative path. What am I doing wrong? Here's the error message: ``` [INFO] Scanning for projects... Downloading: http://repo1.maven.org/maven2/com/mycompany/app/myapp/${app.version}/myapp- ${app.version}.pom [INFO] Unable to find resource 'com.mycompany.app:myapp:pom:${app.version}' in reposit ory central (http://repo1.maven.org/maven2) [INFO] ------------------------------------------------------------------------ [ERROR] FATAL ERROR [INFO] ------------------------------------------------------------------------ [INFO] Error building POM (may not be this project's POM). Project ID: null:web:jar:null Reason: Cannot find parent: com.mycompany.app:myapp for project: null:web:jar:null for project null:web:jar:null ```

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