title: Error building maven multi module project with frontend-maven-plugin
body: <p>I am following <a href="https://dzone.com/articles/building-a-web-app-using-spring-boot-angular-6-and" rel="nofollow noreferrer">this</a> tutorial to build a project with Spring Boot backend and Angular frontend.</p>
  
  <p>The only changes I made are the versions in the web project .pom:</p>
  
  <pre><code>&lt;plugin&gt;
              &lt;groupId&gt;com.github.eirslett&lt;/groupId&gt;
              &lt;artifactId&gt;frontend-maven-plugin&lt;/artifactId&gt;
              &lt;version&gt;1.7.5&lt;/version&gt;
              &lt;configuration&gt;
                  &lt;nodeVersion&gt;v10.14.1&lt;/nodeVersion&gt;
                  &lt;npmVersion&gt;6.8.0&lt;/npmVersion&gt;
                  &lt;workingDirectory&gt;src/main/web/&lt;/workingDirectory&gt;
              &lt;/configuration&gt;
  ...
  </code></pre>
  
  <p>The error I got is this:</p>
  
  <pre><code>    [INFO] ------------------------------------------------------------------------
  [INFO] Reactor Summary for dnd-mm 1.0-SNAPSHOT:
  [INFO]
  [INFO] dnd-mm ............................................. SUCCESS [  1.188 s]
  [INFO] dnd-mm-core ........................................ SUCCESS [ 10.483 s]
  [INFO] dnd-mm-web ......................................... FAILURE [  1.735 s]
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time:  14.077 s
  [INFO] Finished at: 2019-02-27T12:09:10+02:00
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm (install node and npm) on project dnd-mm-web: Execution inst
  all node and npm of goal com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm failed: A required class was missing while executing com.github.ei
  rslett:frontend-maven-plugin:1.7.5:install-node-and-npm: org/codehaus/jackson/map/ObjectMapper
  [ERROR] -----------------------------------------------------
  [ERROR] realm =    plugin&gt;com.github.eirslett:frontend-maven-plugin:1.7.5
  [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  [ERROR] urls[0] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-maven-plugin/1.7.5/frontend-maven-plugin-1.7.5.jar
  [ERROR] urls[1] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-plugin-core/1.7.5/frontend-plugin-core-1.7.5.jar
  [ERROR] urls[2] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.13/jackson-mapper-asl-1.9.13.jar
  [ERROR] urls[3] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.13/jackson-core-asl-1.9.13.jar
  [ERROR] urls[4] = file:/C:/.../.m2/repository/org/apache/commons/commons-compress/1.18/commons-compress-1.18.jar
  [ERROR] urls[5] = file:/C:/.../.m2/repository/commons-io/commons-io/1.3.2/commons-io-1.3.2.jar
  [ERROR] urls[6] = file:/C:/.../.m2/repository/org/apache/commons/commons-exec/1.3/commons-exec-1.3.jar
  [ERROR] urls[7] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar
  [ERROR] urls[8] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpcore/4.4.4/httpcore-4.4.4.jar
  [ERROR] urls[9] = file:/C:/.../.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
  [ERROR] urls[10] = file:/C:/.../.m2/repository/commons-codec/commons-codec/1.9/commons-codec-1.9.jar
  [ERROR] urls[11] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-utils/3.0.22/plexus-utils-3.0.22.jar
  [ERROR] urls[12] = file:/C:/.../.m2/repository/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar
  [ERROR] urls[13] = file:/C:/.../.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
  [ERROR] urls[14] = file:/C:/.../.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.3.3/org.eclipse.sisu.inject-0.3.3.jar
  [ERROR] urls[15] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  
  [ERROR] urls[16] = file:/C:/.../.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
  [ERROR] urls[17] = file:/C:/.../.m2/repository/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar
  [ERROR] Number of foreign imports: 1
  [ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  [ERROR]
  [ERROR] -----------------------------------------------------
  [ERROR] : org.codehaus.jackson.map.ObjectMapper
  [ERROR] -&gt; [Help 1]
  org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm (install nod
  e and npm) on project dnd-mm-web: Execution install node and npm of goal com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm failed: A required
   class was missing while executing com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm: org/codehaus/jackson/map/ObjectMapper
  -----------------------------------------------------
  realm =    plugin&gt;com.github.eirslett:frontend-maven-plugin:1.7.5
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-maven-plugin/1.7.5/frontend-maven-plugin-1.7.5.jar
  urls[1] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-plugin-core/1.7.5/frontend-plugin-core-1.7.5.jar
  urls[2] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.13/jackson-mapper-asl-1.9.13.jar
  urls[3] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.13/jackson-core-asl-1.9.13.jar
  urls[4] = file:/C:/.../.m2/repository/org/apache/commons/commons-compress/1.18/commons-compress-1.18.jar
  urls[5] = file:/C:/.../.m2/repository/commons-io/commons-io/1.3.2/commons-io-1.3.2.jar
  urls[6] = file:/C:/.../.m2/repository/org/apache/commons/commons-exec/1.3/commons-exec-1.3.jar
  urls[7] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar
  urls[8] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpcore/4.4.4/httpcore-4.4.4.jar
  urls[9] = file:/C:/.../.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
  urls[10] = file:/C:/.../.m2/repository/commons-codec/commons-codec/1.9/commons-codec-1.9.jar
  urls[11] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-utils/3.0.22/plexus-utils-3.0.22.jar
  urls[12] = file:/C:/.../.m2/repository/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar
  urls[13] = file:/C:/.../.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
  urls[14] = file:/C:/.../.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.3.3/org.eclipse.sisu.inject-0.3.3.jar
  urls[15] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[16] = file:/C:/.../.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
  urls[17] = file:/C:/.../.m2/repository/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
      at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
      at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
      at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:498)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
  Caused by: org.apache.maven.plugin.PluginExecutionException: Execution install node and npm of goal com.github.eirslett:frontend-maven-plugin:1.7.5:install-node
  -and-npm failed: A required class was missing while executing com.github.eirslett:frontend-maven-plugin:1.7.5:install-node-and-npm: org/codehaus/jackson/map/Obj
  ectMapper
  -----------------------------------------------------
  realm =    plugin&gt;com.github.eirslett:frontend-maven-plugin:1.7.5
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-maven-plugin/1.7.5/frontend-maven-plugin-1.7.5.jar
  urls[1] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-plugin-core/1.7.5/frontend-plugin-core-1.7.5.jar
  urls[2] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.13/jackson-mapper-asl-1.9.13.jar
  urls[3] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.13/jackson-core-asl-1.9.13.jar
  urls[4] = file:/C:/.../.m2/repository/org/apache/commons/commons-compress/1.18/commons-compress-1.18.jar
  urls[5] = file:/C:/.../.m2/repository/commons-io/commons-io/1.3.2/commons-io-1.3.2.jar
  urls[6] = file:/C:/.../.m2/repository/org/apache/commons/commons-exec/1.3/commons-exec-1.3.jar
  urls[7] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar
  urls[8] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpcore/4.4.4/httpcore-4.4.4.jar
  urls[9] = file:/C:/.../.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
  urls[10] = file:/C:/.../.m2/repository/commons-codec/commons-codec/1.9/commons-codec-1.9.jar
  urls[11] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-utils/3.0.22/plexus-utils-3.0.22.jar
  urls[12] = file:/C:/.../.m2/repository/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar
  urls[13] = file:/C:/.../.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
  urls[14] = file:/C:/.../.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.3.3/org.eclipse.sisu.inject-0.3.3.jar
  urls[15] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[16] = file:/C:/.../.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
  urls[17] = file:/C:/.../.m2/repository/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:171)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
      at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
      at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
      at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:498)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
  Caused by: org.apache.maven.plugin.PluginContainerException: A required class was missing while executing com.github.eirslett:frontend-maven-plugin:1.7.5:instal
  l-node-and-npm: org/codehaus/jackson/map/ObjectMapper
  -----------------------------------------------------
  realm =    plugin&gt;com.github.eirslett:frontend-maven-plugin:1.7.5
  strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
  urls[0] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-maven-plugin/1.7.5/frontend-maven-plugin-1.7.5.jar
  urls[1] = file:/C:/.../.m2/repository/com/github/eirslett/frontend-plugin-core/1.7.5/frontend-plugin-core-1.7.5.jar
  urls[2] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.13/jackson-mapper-asl-1.9.13.jar
  urls[3] = file:/C:/.../.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.13/jackson-core-asl-1.9.13.jar
  urls[4] = file:/C:/.../.m2/repository/org/apache/commons/commons-compress/1.18/commons-compress-1.18.jar
  urls[5] = file:/C:/.../.m2/repository/commons-io/commons-io/1.3.2/commons-io-1.3.2.jar
  urls[6] = file:/C:/.../.m2/repository/org/apache/commons/commons-exec/1.3/commons-exec-1.3.jar
  urls[7] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar
  urls[8] = file:/C:/.../.m2/repository/org/apache/httpcomponents/httpcore/4.4.4/httpcore-4.4.4.jar
  urls[9] = file:/C:/.../.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
  urls[10] = file:/C:/.../.m2/repository/commons-codec/commons-codec/1.9/commons-codec-1.9.jar
  urls[11] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-utils/3.0.22/plexus-utils-3.0.22.jar
  urls[12] = file:/C:/.../.m2/repository/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar
  urls[13] = file:/C:/.../.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
  urls[14] = file:/C:/.../.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.3.3/org.eclipse.sisu.inject-0.3.3.jar
  urls[15] = file:/C:/.../.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
  urls[16] = file:/C:/.../.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
  urls[17] = file:/C:/.../.m2/repository/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar
  Number of foreign imports: 1
  import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
  
  -----------------------------------------------------
  
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:169)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
      at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
      at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
      at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:498)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
  Caused by: java.lang.NoClassDefFoundError: org/codehaus/jackson/map/ObjectMapper
      at com.github.eirslett.maven.plugins.frontend.lib.NPMInstaller.npmIsAlreadyInstalled (NPMInstaller.java:92)
      at com.github.eirslett.maven.plugins.frontend.lib.NPMInstaller.install (NPMInstaller.java:81)
      at com.github.eirslett.maven.plugins.frontend.mojo.InstallNodeAndNpmMojo.execute (InstallNodeAndNpmMojo.java:106)
      at com.github.eirslett.maven.plugins.frontend.mojo.AbstractFrontendMojo.execute (AbstractFrontendMojo.java:94)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
      at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
      at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
      at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:498)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
  Caused by: java.lang.ClassNotFoundException: org.codehaus.jackson.map.ObjectMapper
      at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass (SelfFirstStrategy.java:50)
      at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass (ClassRealm.java:271)
      at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass (ClassRealm.java:247)
      at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass (ClassRealm.java:239)
      at com.github.eirslett.maven.plugins.frontend.lib.NPMInstaller.npmIsAlreadyInstalled (NPMInstaller.java:92)
      at com.github.eirslett.maven.plugins.frontend.lib.NPMInstaller.install (NPMInstaller.java:81)
      at com.github.eirslett.maven.plugins.frontend.mojo.InstallNodeAndNpmMojo.execute (InstallNodeAndNpmMojo.java:106)
      at com.github.eirslett.maven.plugins.frontend.mojo.AbstractFrontendMojo.execute (AbstractFrontendMojo.java:94)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
      at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
      at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
      at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
      at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
      at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
      at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke (Method.java:498)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
  [ERROR]
  [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/PluginContainerException
  [ERROR]
  [ERROR] After correcting the problems, you can resume the build with the command
  [ERROR]   mvn &lt;goals&gt; -rf :dnd-mm-web
  </code></pre>
  
  <p>I have seen that this is a somewhat common error but I cannot find a solution that works for me.</p>
  
  <p>I've tried changing the maven version (used: 3.0.4 but 3.1 and above was needed, 3.2.5, 3.3.3 bundled with IntelliJ and latest 3.6.0)</p>
  
  <p>I messed around with the frontend-maven-plugin version using 1.3, 1.6, 1.7.5.</p>
  
  <p>I added jackson-mapper-asl and jackson-core-asl 1.9.13 dependencies on the project, still nothing.</p>
  
  <p>I was deleting .m2\repository\com\github folder throughout the above changes.</p>
  
  <p>Nothing worked so far.</p>
  
  <p>Please help, thanks in advance.</p>