Release plugin error - no POM in this directory - maven

Question

I am trying to use the maven release plugin but I have an error that prevents me to use it.
My folder structure:
+root
+parent
pom.xml
+projectA
pom.xml
+projectB
pom.xml
pom.xml
root/parent/pom.xml
<project ...>
<groupId>org.acme</groupId>
<artifactId>parent</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<name>throttling</name>
<url>http://maven.apache.org</url>
...
<scm>
<connection>scm:hg:https://code.google.com/***</connection>
</scm>
<distributionManagement>
<repository>
<id>deployment</id>
...
</repository>
<snapshotRepository>
<id>deployment</id>
...
</snapshotRepository>
</distributionManagement>
</project>
root/pom.xml
<project ...>
<artifactId>throttling-modules</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<name>throttling</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.acme</groupId>
<artifactId>parent</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath />
</parent>
<modules>
<module>projectA</module>
<module>projectB</module>
</modules>
<scm>
<connection>scm:hg:https://code.google.com/***</connection>
</scm>
<distributionManagement>
<repository>
<id>deployment</id>
...
</repository>
<snapshotRepository>
<id>deployment</id>
...
</snapshotRepository>
</distributionManagement>
</project>
root/projectA/pom.xml
<project ...>
<parent>
<groupId>org.acme</groupId>
<artifactId>parent</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath />
</parent>
<artifactId>thr-common</artifactId>
<version>1.0-SNAPSHOT</version>
<name>thr-common</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
...
</project>
I executed the command 'mvn release:prepare' that ran fine.
After that I executed the 'mvn release:perform' but I got the next error message
(mvn release:perform -Dusername=???? -Dpassword=????? -DconnectionUrl=scm:hg:https://code.google.com/???):
[INFO] Checking out the project to perform the release ...
[INFO] Removing D:\work\throttling\code_google\***\throttling\parent\target\checkout
[INFO] EXECUTING: cmd.exe /X /C "hg clone -r release_parent-1.1 https://***:***#code.google.com/*** D:\work\throttling\code_google\***\throttling\parent\target\checkout"
[INFO] EXECUTING: cmd.exe /X /C "hg locate"
[INFO] Executing goals 'deploy'...
[WARNING] Maven will be executed in interactive mode, but no input stream has been configured for this MavenInvoker instance.
[INFO] [INFO] Scanning for projects...
[INFO] [INFO] ------------------------------------------------------------------------
[INFO] [INFO] BUILD FAILURE
[INFO] [INFO] ------------------------------------------------------------------------
[INFO] [ERROR] The goal you specified requires a project to execute but there is no POM in this directory (D:\work\throttling\code_google\***\throttling\parent\target\checkout). Please verify you invoked Maven from the correct directory. -> [Help 1]
The folder structure in throttling\parent\target
+throttling\parent\target
+checkout
+throttling
+parent
+projectA
+projectB
Thanks,
V.

Answer 1

I could solve the problem in the end, the path of the parent pom had to be defined in the parent pom XML.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.4.2</version>
<executions>
<execution>
<id>default</id>
<goals>
<goal>perform</goal>
</goals>
<configuration>
<pomFileName>parent/pom.xml</pomFileName>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>