Plugin org apache maven plugins maven-compiler-plugin or one of its dependencies could not be resolved

Question

I m having some issues to configure properly my eclipse to work with maven   I create a new project  this one is correctly build with maven in command line  mvn install   but in Eclipse I got this error      CoreException  Could not get the value for parameter compilerId for plugin execution default-compile  PluginResolutionException  Plugin org apache maven plugins maven-compiler-plugin 3 1 or one of its dependencies could not be resolved  Failed to collect dependencies for org apache maven plugins maven-compiler-plugin jar 3 1     ArtifactDescriptorException  Failed to read artifact descriptor for org apache maven maven-settings jar 2 2 1  ArtifactResolutionException  Failure to transfer org apache maven maven-settings pom 2 2 1 from http   repo maven apache org maven2 was cached in the local repository  resolution will not be reattempted until the update interval of central has elapsed or updates are forced  Original error  Could not transfer artifact org apache maven maven-settings pom 2 2 1 from to central   NullPointerException pom xml  test   line 9  Maven Project Build Lifecycle Mapping Problem   Here is my settings xml conf     lt proxy gt     lt active gt true lt  active gt     lt protocol gt http lt  protocol gt     lt username gt myuser lt  username gt     lt password gt  mymdp lt  password gt     lt host gt myhost lt  host gt     lt port gt 8080 lt  port gt     lt nonProxyHosts gt some host com lt  nonProxyHosts gt   lt  proxy gt         lt repository gt        lt id gt central lt  id gt        lt name gt central repo m2 lt  name gt        lt url gt http   central maven org maven2 lt  url gt   lt  repository gt    I choose the correct maven installation  in Preference -  Maven -  Install   I also direct my user settings on the correct settings xml  Preferences -  Maven -  User Settings   But I still got this error in Eclipse and everything goes well with maven command line  Do you have and idea

User · Answer

I accidentally turned on offline mode  To disable it  in the Maven tool window  click The Toggle Offline Mode button

User · Answer

I also got the same issue and not able to create a jar  and I found that in Windows-- gt Prefernces-- gt Java-- gt installed JREs By default JRE was added to the build path of newly created java project so just changed it to your prefered JDK

User · Answer

I was getting this problem when using IBM RSA 9 6 1 when building a brand new development machine   The problem for me ended up being because of HTTPS on the Global Maven repository   My solution was to create a Maven settings xml that forced it to use HTTP   The key to me was that the central repository was empty when I exploded it under Maven Repositories --   Global Repositories  Using the following settings file worked for me    lt settings gt     lt activeProfiles gt       lt  --make the profile active all the time -- gt       lt activeProfile gt insecurecentral lt  activeProfile gt     lt  activeProfiles gt     lt profiles gt       lt profile gt         lt id gt insecurecentral lt  id gt         lt  --Override the repository  and pluginRepository   central  from the Maven Super POM -- gt         lt repositories gt           lt repository gt             lt id gt central lt  id gt             lt url gt http   repo maven apache org maven2 lt  url gt             lt releases gt               lt enabled gt true lt  enabled gt             lt  releases gt           lt  repository gt         lt  repositories gt         lt pluginRepositories gt           lt pluginRepository gt             lt id gt central lt  id gt             lt url gt http   repo maven apache org maven2 lt  url gt             lt releases gt               lt enabled gt true lt  enabled gt             lt  releases gt           lt  pluginRepository gt         lt  pluginRepositories gt       lt  profile gt     lt  profiles gt   lt  settings gt    I got the idea from this stackoverflow question

User · Answer

You only need to delete one folder it is throwing error for  Just go to your M2 repo and org apache maven plugins maven-compiler-plugins and delete the folder 2 3 2

User · Answer

Have you tried to remove the proxy username and password  A similar poster encountered that issue   Could not calculate build plan  Plugin org apache maven plugins maven-jar-plugin 2 3 2 or one of its dependencies could not be resolved  Failing that I found the following worked    Delete project in Eclipse  but do not delete the contents on disk  Delete all files in your Maven repository Re-download all Maven dependencies     mvn dependency resolve   Start up Eclipse Ensure that Eclipse is configured to use your external Maven installation  Window- Preferences- Maven- Installations  Re-import the existing project s  into Eclipse Ensure that there are no Maven Eclipse plugin errors on the final screen of the project import

User · Answer

The issue has been resolved while installation of the maven settings is provided as External in Eclipse  The navigation settings are Window --  Preferences --  Installations  Select the External as installation Type  provide the  Installation home and name and click on Finish  Finally select this as default installations

[java] Plugin org.apache.maven.plugins:maven-compiler-plugin or one of its dependencies could not be resolved

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