Maven Could not resolve dependencies, artifacts could not be resolved

maven maven-3

This is supposed to be a working project from my friend. He demonstrated the project right in front of me, and then I copied the project, imported it as an existing maven project (I'm using m2eclipse plugin).

And then, this error occurs. This error can be reproduced every time I try to build something with maven.

Doing mvn dependency:tree, dependency:list, or the usual build package, will result in the same error.

The error from running the 'package' build from eclipse is:

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Jackpot Portal Webapp 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for javax.servlet:com.springsource.javax.servlet:jar:2.5.0 is missing, no dependency information available
[WARNING] The POM for javax.servlet:com.springsource.javax.servlet.jsp.jstl:jar:1.2.0 is missing, no dependency information available
[WARNING] The POM for javax.transaction:com.springsource.javax.transaction:jar:1.1.0 is missing, no dependency information available
[WARNING] The POM for org.slf4j:com.springsource.slf4j.log4j:jar:1.5.6 is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.963s
[INFO] Finished at: Tue Jan 11 01:55:41 WIT 2011
[INFO] Final Memory: 2M/56M
[INFO] ------------------------------------------------------------------------

[ERROR] Failed to execute goal on project jackpot: Could not resolve dependencies 
for project com.jeteo:jackpot:war:1.0-SNAPSHOT: The following artifacts could 
not be resolved: javax.servlet:com.springsource.javax.servlet:jar:2.5.0,
javax.servlet:com.springsource.javax.servlet.jsp.jstl:jar:1.2.0, 
javax.transaction:com.springsource.javax.transaction:jar:1.1.0, 
org.slf4j:com.springsource.slf4j.log4j:jar:1.5.6: Failure to find 
javax.servlet:com.springsource.javax.servlet:jar:2.5.0 in 
http://repository.springsource.com/maven/bundles/release was cached in the 
local repository, resolution will not be reattempted until the update 
interval of com.springsource.repository.bundles.release has elapsed or 
updates are forced -> [Help 1]

[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException

And here is the content of the pom.xml :

<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.jeteo</groupId>
    <artifactId>jackpot</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>Jackpot Portal Webapp</name>
    <url>http://www.jeteo.com</url>
    <properties>
        <java-version>1.6</java-version>
        <org.springframework-version>3.0.3.RELEASE</org.springframework-version>
        <org.hibernate-version>3.6.0.Final</org.hibernate-version>
        <org.aspectj-version>1.6.9</org.aspectj-version>
        <org.slf4j-version>1.5.10</org.slf4j-version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>net.sf.jt400</groupId>
            <artifactId>jt400</artifactId>
            <version>6.6</version>
            <scope>compile</scope>
        </dependency>

        <!-- Hibernate -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${org.hibernate-version}</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>${org.hibernate-version}</version>
            <scope>compile</scope>
        </dependency>

        <!-- AspectJ -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${org.aspectj-version}</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjtools</artifactId>
            <version>${org.aspectj-version}</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>com.springsource.javax.servlet</artifactId>
            <version>2.5.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>com.springsource.javax.servlet.jsp.jstl</artifactId>
            <version>1.2.0</version>
            <scope>provided</scope>
        </dependency>
        <!--
        <dependency>
         <groupId>javax.persistence</groupId>
         <artifactId>com.springsource.javax.persistence</artifactId>
         <version>1.0.0</version>
         <scope>compile</scope>
        </dependency>
        -->
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>com.springsource.javax.transaction</artifactId>
            <version>1.1.0</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.5.6</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>com.springsource.slf4j.log4j</artifactId>
            <version>1.5.6</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.11</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>

    </dependencies>
    <repositories>
        <!-- Spring releases -->
        <repository>
            <id>com.springsource.repository.bundles.release</id>
            <name>Spring Maven Repository Repository</name>
            <url>http://repository.springsource.com/maven/bundles/release</url>
        </repository>
        <!-- For hibernate 3.6 support -->
        <repository>
            <id>jboss</id>
            <url>https://repository.jboss.org/nexus/content/groups/public/</url>
        </repository>
    </repositories>
    <build>
        <finalName>jackpot</finalName>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>tomcat-maven-plugin</artifactId>
                <version>1.1</version>
                <configuration>
                    <url>http://localhost:8080/manager</url>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.0.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

I've tried downloading the newest version of maven, and included it in the eclipse helios, but still the same problem. The same error message happens even when I run it it in the shell command line (outside eclipse).

What am I missing?


Looks like you are missing some Maven repos. Ask for your friend's .m2/settings.xml, and you'll probably want to update the POM to include the repositories there.

--edit: after some quick googling, try adding this to your POM:

<repository>
    <id>com.springsource.repository.bundles.release</id>
    <name>SpringSource Enterprise Bundle Repository - SpringSource Bundle Releases</name>
    <url>http://repository.springsource.com/maven/bundles/release</url>
</repository>
<repository>
    <id>com.springsource.repository.bundles.external</id>
    <name>SpringSource Enterprise Bundle Repository - External Bundle Releases</name>
    <url>http://repository.springsource.com/maven/bundles/external</url>
</repository>


mvn clean install -U

Solved my problem. Since the repos were cached, I needed to force it to get latest version.


Maven kept your files on cache, and don't retry to download them. You can simply manually 'help' him by deleting the .m2 directory, and then our friend will download everything over the old dependencies.


The artifactId for all the dependencies that failed to download are incorrect - for some reason they are prefixed with com.springsource. Cut/paste issue?

You can try replacing them as follows.

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2.0</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>2.5</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.transaction</groupId>
    <artifactId>jta</artifactId>
    <version>1.1.0</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.5.6</version>
</dependency>

You may also want to add the maven central repository for these artifacts in case they are not available in the specified repositories.

<repository>
    <id>maven2</id>
    <url>http://repo1.maven.org/maven2</url>
</repository>

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