title: maven-compiler-plugin:3.1 or one of its dependencies could not be resolved
body: <p>I am trying to do a rest web service example. </p>
  
  <p>This is my pom:</p>
  
  <pre><code>&lt;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"&gt;
    &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  
    &lt;groupId&gt;my.group&lt;/groupId&gt;
    &lt;artifactId&gt;restService&lt;/artifactId&gt;
    &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
    &lt;packaging&gt;jar&lt;/packaging&gt;
  
    &lt;name&gt;restService&lt;/name&gt;
    &lt;url&gt;http://maven.apache.org&lt;/url&gt;
  
      &lt;parent&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
          &lt;version&gt;1.3.5.RELEASE&lt;/version&gt;
      &lt;/parent&gt;
  
      &lt;dependencies&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
          &lt;/dependency&gt;        
      &lt;/dependencies&gt;
  
      &lt;properties&gt;
          &lt;java.version&gt;1.7&lt;/java.version&gt;
      &lt;/properties&gt;
  
  
      &lt;build&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
                  &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  
      &lt;repositories&gt;
          &lt;repository&gt;
              &lt;id&gt;spring-releases&lt;/id&gt;
              &lt;url&gt;https://repo.spring.io/libs-release&lt;/url&gt;
          &lt;/repository&gt;
      &lt;/repositories&gt;
      &lt;pluginRepositories&gt;
          &lt;pluginRepository&gt;
              &lt;id&gt;spring-releases&lt;/id&gt;
              &lt;url&gt;https://repo.spring.io/libs-release&lt;/url&gt;
          &lt;/pluginRepository&gt;
      &lt;/pluginRepositories&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>When I run:</p>
  
  <pre><code>&gt;mvn package
  [INFO] Scanning for projects...
  [INFO]
  [INFO] ------------------------------------------------------------------------
  [INFO] Building restService 0.0.1-SNAPSHOT
  [INFO] ------------------------------------------------------------------------
  [INFO]
  [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ restService ---
  [INFO] Using 'UTF-8' encoding to copy filtered resources.
  [INFO] skip non existing resourceDirectory D:\Documents\Universita\tesi\javaWorkspace\restService\src\main\resources
  [INFO] skip non existing resourceDirectory D:\Documents\Universita\tesi\javaWorkspace\restService\src\main\resources
  [INFO]
  [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ restService ---
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 1.935 s
  [INFO] Finished at: 2016-05-29T17:05:52+02:00
  [INFO] Final Memory: 15M/185M
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project restService: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile failed: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven:maven-core:jar:2.0.9, log4j:log4j:jar:1.2.12: Failure to find org.apache.maven:maven-core:jar:2.0.9 in http://localhost:8081/artifactory/remote-repos was cached in the local repository, resolution will not be reattempted until the update interval of remote-repos has elapsed or updates are forced -&gt; [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/PluginResolutionException
  </code></pre>
  
  <p>The problem seem to be artifactory that not resolve the dependencies.</p>
  
  <p>What can I do?</p>
  
  <p>Thanks</p>