Thank you for your prompt reply, I tried to add the "pax-url-aether" in the section boot feature of pom file, but i have the same error.
Follow my POM 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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.sample</groupId> <artifactId>Karaf custom</artifactId> <version>2.0.0-SNAPSHOT</version> <name>sample.com :: Parent POM for Offline Karaf</name> <description>Maven POM for Offline Karaf server</description> <packaging>karaf-assembly</packaging> <scm> <connection> scm:git:https://github.com/juttayaya/karaf.git </connection> <developerConnection> scm:git:https://github.com/juttayaya/karaf.git </developerConnection> </scm> <prerequisites> <maven>3.0.3</maven> </prerequisites> <properties> <karaf.version>4.2.4</karaf.version> <camel.version>2.23.1</camel.version> <activemq.version>5.15.9</activemq.version> <hawtio.version>2.5.0</hawtio.version> <karaf.plugin.version>${karaf.version}</karaf.plugin.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.build.reportEncoding>UTF-8</project.build.reportEncoding> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.apache.karaf</groupId> <artifactId>karaf</artifactId> <version>${karaf.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.apache.karaf.features</groupId> <artifactId>framework</artifactId> <type>kar</type> <version>${karaf.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.karaf.features</groupId> <artifactId>standard</artifactId> <classifier>features</classifier> <type>xml</type> <version>${karaf.version}</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.apache.karaf.features</groupId> <artifactId>enterprise</artifactId> <classifier>features</classifier> <type>xml</type> <version>${karaf.version}</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.apache.camel.karaf</groupId> <artifactId>apache-camel</artifactId> <version>${camel.version}</version> <classifier>features</classifier> <type>xml</type> <scope>runtime</scope> </dependency> <dependency> <groupId>org.apache.karaf.features</groupId> <artifactId>spring</artifactId> <version>${karaf.version}</version> <classifier>features</classifier> <type>xml</type> <scope>runtime</scope> </dependency> <dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-karaf</artifactId> <version>${activemq.version}</version> <classifier>features</classifier> <type>xml</type> <scope>runtime</scope> </dependency> <dependency> <groupId>io.hawt</groupId> <artifactId>hawtio-karaf</artifactId> <version>${hawtio.version}</version> <classifier>features</classifier> <type>xml</type> <scope>runtime</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> <plugin> <groupId>org.apache.karaf.tooling</groupId> <artifactId>karaf-maven-plugin</artifactId> <version>${karaf.plugin.version}</version> <extensions>true</extensions> <configuration> <ignoreDependencyFlag>false</ignoreDependencyFlag> <bootFeatures> <feature>aries-proxy</feature> <feature>aries-blueprint</feature> <feature>feature</feature> <feature>shell</feature> <feature>shell-compat</feature> <feature>deployer</feature> <feature>bundle</feature> <feature>config</feature> <feature>diagnostic</feature> <feature>instance</feature> <feature>jaas</feature> <feature>log</feature> <feature>package</feature> <feature>service</feature> <feature>system</feature> <feature>kar</feature> <feature>ssh</feature> <feature>management</feature> <feature>wrap</feature> <feature>camel-core</feature> <feature>camel</feature> <feature>camel-blueprint</feature> <feature>camel-netty4-http</feature> <feature>camel-ftp</feature> <feature>camel-mail</feature> <feature>camel-velocity</feature> <feature>camel-http4</feature> <feature>camel-jms</feature> <feature>camel-quartz2</feature> <feature>camel-cxf</feature> <feature>camel-jaxb</feature> <feature>camel-saxon</feature> <feature>camel-jackson</feature> <feature>camel-zipfile</feature> <feature>hawtio</feature> <feature>activemq-broker</feature> </bootFeatures> <installedFeatures> <feature>obr</feature> <feature>war</feature> <feature>webconsole</feature> <feature>jndi</feature> <feature>jpa</feature> <feature>openjpa</feature> <feature>jdbc</feature> <feature>jms</feature> <feature>transaction</feature> <feature>spring</feature> <feature>camel-xmljson</feature> </installedFeatures> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <executions> <execution> <id>copy</id> <phase>prepare-package</phase> <goals> <goal>copy</goal> </goals> <configuration> <artifactItems> <artifactItem> <groupId>org.apache.karaf.diagnostic</groupId> <artifactId>org.apache.karaf.diagnostic.boot</artifactId> <version>${karaf.version}</version> <outputDirectory>target/assembly/system/org/apache/karaf/diagnostic/org.apache.karaf.diagnostic.boot/${karaf.version}</outputDirectory> </artifactItem> <artifactItem> <groupId>org.apache.karaf.jaas</groupId> <artifactId>org.apache.karaf.jaas.boot</artifactId> <version>${karaf.version}</version> <outputDirectory>target/assembly/system/org/apache/karaf/jaas/org.apache.karaf.jaas.boot/${karaf.version}</outputDirectory> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin> </plugins> </build> <repositories> <repository> <id>servicemix</id> <name>ServiceMix Repo for Karaf</name> <url>http://svn.apache.org/repos/asf/servicemix/m2-repo</url> </repository> <repository> <id>maven</id> <name>Maven Repo for Karaf</name> <url>https://mvnrepository.com/artifact</url> </repository> </repositories> </project> and the karaf log file in attachment karaf.log <http://karaf.922171.n3.nabble.com/file/t498205/karaf.log> . Thanks in advance. Luca Leonardi -- Sent from: http://karaf.922171.n3.nabble.com/Karaf-Dev-f930721.html