我正在遵循本教程，以使用Spring Boot后端和Angular Frontend构建一个项目。
我唯一做的更改是Web项目中的版本.pom：
<plugin>
<groupId>com.github.eirslett</groupId>
<artifactId>frontend-maven-plugin</artifactId>
<version>1.7.5</version>
<configuration>
<nodeVersion>v10.14.1</nodeVersion>
<npmVersion>6.8.0</npmVersion>
<workingDirectory>src/main/web/</workingDirectory>
</configuration>
...
我遇到的错误是：
[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>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] -> [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>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>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>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 <goals> -rf :dnd-mm-web
我已经看到这是一个有点普遍的错误，但是我找不到对我有用的解决方案。
我尝试更改Maven版本（使用：3.0.4，但是需要3.1及以上，3.2.5，3.3.3与Intellij和最新3.6.0捆绑在一起）
我使用1.3、1.6、1.7.5。
我添加了Jackson-Mapper-ASL和Jackson-Core-ASL 1.9.13对项目的依赖性，仍然没有。
i正在删除.m2 repository com github文件夹。
到目前为止什么都没有。
请提供帮助，谢谢。
问题是在前端 - 马文 - plugin本身中。
我通过执行以下步骤设法运行代码：
- 我将主分支从他们的github存储库克隆到我的机器。
-
npminstaller.java类文件中存在导入错误。我替换了
导入org.codehaus.jackson.map.objectmapper;
import com.fasterxml.jackson.databind.ObjectMapper;
并在pom.xml中添加了依赖性：
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.6</version>
</dependency>
- 我试图构建它，但在Maven-Javadoc-Plugin上遇到了一些问题，因此我评论了我在Project Poms中发现的每个条目。
- MVN清洁安装根项目。这在我的.m2目录中创建了一个1.7.6-Snapshot文件夹。
- 将我的项目中的插件版本更改为1.7.6-snapshot，一切正常。