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xmlns="http://maven.apache.org/POM/4.0.0" URI is not registered

I want to build an android application with maven. using this tutorial I create a xml file named pom.xml with this code:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.hello</groupId>
<artifactId>gs-maven-android</artifactId>
<version>0.1.0</version>
<packaging>apk</packaging>
<properties>
<!-- use UTF-8 for everything -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>4.1.1.4</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.9.0-rc.1</version>
<configuration>
<sdk>
<platform>19</platform>
</sdk>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
but in the
xmlns="http://maven.apache.org/POM/4.0.0"
and
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
I've got error:
URI not registered
what is this error for? and
how can I fix it?

Because your pom.xml isn't a Maven Project xml.
If you use IDE,notice the IDE notify,maybe it tell you what want to do.
Follow the hint,and do it.

Maven + AndroidAnnotations + Eclipse

I try to migrate an App (developed in Eclipse) to Maven as a step to move forward to Android Studio. The pom.xml looks (after lots of google researches) like this
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>de.xxx</groupId>
<artifactId>sample</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>apk</packaging>
<name>sample</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<platform.version> 4.1.1.4
</platform.version>
<android.plugin.version>3.8.2</android.plugin.version>
<androidannotations.version>3.3.2</androidannotations.version>
</properties>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>${platform.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.acra</groupId>
<artifactId>acra</artifactId>
<version>4.2.2RC</version>
</dependency>
<dependency>
<groupId>com.actionbarsherlock</groupId>
<artifactId>actionbarsherlock</artifactId>
<version>4.4.0</version>
<!-- <type>apklib</type> -->
</dependency>
<dependency>
<groupId>org.androidannotations</groupId>
<artifactId>androidannotations</artifactId>
<version>${androidannotations.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.androidannotations</groupId>
<artifactId>androidannotations-api</artifactId>
<version>${androidannotations.version}</version>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>support-v4</artifactId>
<version>r7</version>
</dependency>
<dependency>
<groupId>com.google.android.gms</groupId>
<artifactId>google-play-services</artifactId>
<version>29</version>
<type>apklib</type>
</dependency>
<dependency>
<groupId>com.google.maps.android</groupId>
<artifactId>android-maps-utils</artifactId>
<version>0.4</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>acra-releases</id>
<url>http://acra.googlecode.com/svn/repository/releases</url>
</repository>
</repositories>
<build>
<finalName>${project.artifactId}</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<versionRange>[3.8.2,)</versionRange>
<goals>
<goal>generate-sources</goal>
<goal>proguard</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.8.2</version>
<configuration>
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
<sdk>
<platform>23</platform>
</sdk>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
The Eclipse problem page shows
(com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.2:generate-sources:default-generate-sources:generate-sources)
and
Plugin execution not covered by lifecycle configuration: com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.2:consume-aar (execution: default-consume-aar, phase: compile)
The AndroidAnnotation classes are not generated in the following. Maybe you can point me to a working pom.xml(Eclipse plugins are alle updated).

Android Maven Project - getting error in pom.xml

I got this error when i adding this line to my pom.xml file in maven project
Here is my pom.xml file
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>GROUPID</groupId>
<artifactId>ARTIFACTID</artifactId>
<version>VERSION</version>
<packaging>apk</packaging> <!-- Getting error in this line -->
<name>NAME</name>
<dependencies>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4.3</version>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>2.2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>support-v4</artifactId>
<version>r6</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>1.0</version>
</plugin>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<configuration>
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
<sdk>
<platform>9</platform>
</sdk>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
</plugin>
</plugins>
</pluginManagement>
</build>
<repositories>
<repository>
<id>project.local</id>
<name>project</name>
<url>file:${project.basedir}/repo</url>
</repository>
</repositories>
I am getting this error when adding pom.xml in apk.
I referred to this question Android with maven? Apk unknown
But mvn clean install doesn't help me...
So please help me to get rid of this error.
Thanks in advance.

Try moving those plugins, particularly the android-maven-plugin outside of <pluginManagement>. When specified inside <pluginManagement> they don't run so the android-maven-plugin extension isn't seen so maven doesn't know what to do with the "apk" packaging.

Android maven install fails with external project

This is my projects POM.XML file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycomp</groupId>
<artifactId>abc</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>apk</packaging>
<name>xyx</name>
<dependencies>
<dependency>
<groupId>org.springframework.android</groupId>
<artifactId>spring-android-rest-template</artifactId>
<version>1.0.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.8</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>20030203.000129</version>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>4.1.1.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.actionbarsherlock</groupId>
<artifactId>actionbarsherlock</artifactId>
<version>4.2.0</version>
<type>apklib</type>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<sourceDirectory>src/main/java</sourceDirectory>
<pluginManagement>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.1.1</version>
<extensions>true</extensions>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<configuration>
<sdk>
<platform>16</platform>
</sdk>
</configuration>
</plugin>
</plugins>
</build>
</project>
Now in my Android project i have added an external project, that is not maven based. now when i execute mvn3 install i get a
Failed to execute goal
com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.1.1:generate-sources
(default-generate-sources) MojoExecutionException: ANDROID-040-001: Could not execute: Command = /bin/sh -c etc.
Now i run the above command in my command line and its complaining that the it cannot find attributes belonging to my external project. What can i do ?

Unit testing Android with Maven

I have a question about a android project that is build with Maven,
We made it run our activity tests, but now we need it to run unit tests.
The unit test is in the same project as the activity tests, how do i set it up in our pom.xml files?
This is the Parent Pom.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>andersen.project</groupId>
<artifactId>Hello-parent</artifactId>
<version>1.0</version>
<packaging>pom</packaging>
<name>Hello - Parent</name>
<modules>
<module>HelloWorld</module>
<module>HelloWorldTest</module>
</modules>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>2.2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android-test</artifactId>
<version>2.2.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<sourceDirectory>src</sourceDirectory>
<testSourceDirectory>test</testSourceDirectory>
<pluginManagement>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>maven-android-plugin</artifactId>
<version>2.8.3</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
this is the application pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>andersen.project</groupId>
<artifactId>Hello-parent</artifactId>
<version>1.0</version>
</parent>
<groupId>andersen.project</groupId>
<artifactId>helloworld</artifactId>
<version>1.0</version>
<packaging>apk</packaging>
<name>HelloWorld - Application</name>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>maven-android-plugin</artifactId>
<configuration>
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
<sdk>
<platform>4</platform>
</sdk>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
and this is the test pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>andersen.project</groupId>
<artifactId>Hello-parent</artifactId>
<version>1.0</version>
</parent>
<groupId>andersen.project</groupId>
<artifactId>helloworldtest</artifactId>
<version>1.0</version>
<packaging>apk</packaging>
<name>HalloWorld - Integration tests</name>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android-test</artifactId>
</dependency>
<dependency>
<groupId>andersen.project</groupId>
<artifactId>helloworld</artifactId>
<type>apk</type>
<version>1.0</version>
</dependency>
<dependency>
<groupId>andersen.project</groupId>
<artifactId>helloworld</artifactId>
<type>jar</type>
<version>1.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>maven-android-plugin</artifactId>
<configuration>
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
<sdk>
<platform>4</platform>
</sdk>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Should i add the following text in the parent pom.xml?:
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
<scope>test</scope>
</dependency>
And add it to other poms?
when i run maven the output is:
Junit.framework does not exist

I faced the same problem. It was caused by misconfiguration in the parent pom. You have to remove the scope tag in the dependencyManagement section.
Like this:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android-test</artifactId>
<version>2.2.1</version>
</dependency>
</dependencies>
</dependencyManagement>

Add the Surefire plugin to the test pom.xml. Surefire runs the unit tests.