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

Question

I got the following error message when I tried to create a Maven project in eclipse  Many have posted about proxies in settings xml file and also flush the  m2 folder forcing it to download a new one  None of this is working for me  I m at work  with proxy settings active in the internet options   The error message    Could not calculate build plan  Plugin org apache maven plugins maven-resources-plugin 2 5 or one of its dependencies could not be resolved   Failed to read artifact descriptor for org apache maven plugins maven-resources-plugin jar 2 5 Plugin org apache maven plugins maven-resources-plugin 2 5 or one of its dependencies could not be resolved   Failed to read artifact descriptor for org apache maven plugins maven-resources-plugin jar 2 5   POM XML    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 com blahhhhhhhhhhhhhhhhh lt  groupId gt     lt artifactId gt HelloRESTEasy lt  artifactId gt     lt version gt 0 0 1-SNAPSHOT lt  version gt   lt  project gt     settings xml       lt proxies gt       lt proxy gt         lt id gt optional lt  id gt         lt active gt true lt  active gt         lt protocol gt http lt  protocol gt         lt username gt proxyuser lt  username gt         lt password gt proxypass lt  password gt         lt host gt proxyserver company com lt  host gt         lt port gt 8080 lt  port gt         lt nonProxyHosts gt local net some host com lt  nonProxyHosts gt       lt  proxy gt     lt  proxies gt

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I had same issue while creating new spring project in eclipse using Maven   The main reason for this issue is that the proxy settings was not there   I used the following approach to reslove it  1  create settings xml with  the below content      lt settings xmlns  http   maven apache org SETTINGS 1 0 0        xmlns xsi  http   www w3 org 2001 XMLSchema-instance        xsi schemaLocation  http   maven apache org SETTINGS 1 0 0                           https   maven apache org xsd settings-1 0 0 xsd  gt         lt localRepository  gt         lt interactiveMode  gt         lt usePluginRegistry  gt         lt offline  gt         lt pluginGroups  gt         lt servers  gt         lt mirrors  gt         lt proxies gt           lt proxy gt               lt active gt true lt  active gt               lt protocol gt http lt  protocol gt               lt host gt Your proxy lt  host gt               lt port gt Your port lt  port gt           lt  proxy gt         lt  proxies gt         lt profiles  gt         lt activeProfiles  gt       lt  settings gt  2  Save the settings xml file under local C  Users  lt  lt your user account gt  gt   m2 3  Then Right click project pom XML in eclipse and select  Update Project   It always give precedence to settings XML

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Whenever if you get this error please delete  m2 repository from local drive C  Users user and delete  m2 from there  The reason is this is existing repository used by different workspace so not allowing new application to create

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I had this error  I follwed below three steps to solve   1   check proxy settings in settings xml refer   2    m2 diretory to release cached files causing problems  3  Point your eclipse to correct JDK installation   Refer No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK  to know how

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I also faced same problem    I follow the following steps   u can try it 1  Right click on maven project 2  Take cursor in Maven 3  Click on Update Maven project or  alt F5   it will take some time then most probably problem will solved

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For me  this problem occurs in Eclipse when the Maven installation is not well configured  By default the Maven installation is embedded in Eclipse  The  settings xml file is set wherever the Eclipse installation points   In my case this file was not auto-generated  I choose my own Maven installation - an external one  But if you don t explicitly choose where settings xml is then Eclipse tries to get this file from the path set in the embedded installation  If the file is not autogenerated you have to choose the correct location    Go to windows preferences Maven Installation user settings and choose the correct location of your settings xml

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Try cleaning the local  m2 repository  folder manually using rm -rf and then re build the project  Worked for me after trying every possible other alternative reinstalling eclipse  pointing to the correct maven version in eclipse  proxy settings etc

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I have had this issue  and removing the  m2 repository  has not solved it in my case  Seems that eclipse is unable to download the maven-plugin or dependency needed  Therefore you need to install it yourself    I have finally solved it downloading both jar and pom files from the Maven Repository and installing it using the command  better than copying to the folder directly   mvn install install-file -Dfile  lt path-to-file gt  -DpomFile  lt path-to-pomfile gt    In my case  mvn install install-file -Dfile maven-war-plugin-2 2 pom -DpomFile maven-war-plugin-2 2 pom

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I have summarised what I did for my issue    1  Delete  m2 folder  2  Change the apache-maven-3 5 4 conf settings xml as follow   lt proxies gt   lt proxy gt     lt id gt optional lt  id gt     lt active gt true lt  active gt     lt protocol gt http lt  protocol gt     lt host gt proxyserver company com lt  host gt  -- gt  Please change it according to your proxy    lt port gt 8080 lt  port gt  -- gt Please change it accordingly    lt nonProxyHosts gt local net some host com lt  nonProxyHosts gt   lt  proxy gt       3  Try again in cmd  It will work   4  For eclipse  delete the existing maven project and go to   window - gt prefernces - gt  maven - gt  user settings - gt  browse - gt  configure this path apache-maven-3 5 4 conf settings xml   5  Delete  m2 folder   6  Restart the eclipse and try creating new maven project   These steps worked for me

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There could be multiple reasons  i fixed with following steps    delete  m2 folder and re launch eclipse   Find m2 folder in windows  c  Users Your User Name   m2 or  to search in Mac      m2 make sure settings xml is configured as  JustinBieber mentioned  provide settings xml path in eclipse  windows- preferences- maven- user settings  User Settings must locate settings xml file    save changes and relaunch the eclipse     it should work

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Mainly this occurs during Eclipse upgrade  I Solved using   -  Right Click Project-  Maven- Update Project-  Select all  checkbox   Old or out-dated  projects got refreshed with the updated jar files  and the required plugins  No more errors were visible

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I also had the same problem  I used next way   1 Added settings xml file     m2 settings xml  with next content   lt proxies gt      lt proxy gt         lt active gt true lt  active gt         lt protocol gt http lt  protocol gt         lt host gt qq-proxya lt  host gt         lt port gt 8080 lt  port gt         lt username gt user lt  username gt         lt password gt passw lt  password gt         lt nonProxyHosts gt www google com   example com lt  nonProxyHosts gt       lt  proxy gt     lt  proxies gt    3  Using cmd go to folder with my project and wrote mvn clean and after that mvn install     After that updated project in the Eclipse Alt   F5  or right click on project -  Maven -  Update project   P S  after that  when I add new dependency to my project I have to compile project using cmd mvn compile   Because if I do it using eclipse plugin  I get error connecting with proxy connection

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In my case the error was  CoreException  Could not calculate build plan  Plugin org apache maven plugins maven-compiler-plugin 2 3 2       With eclipse luna from console in the pom xml folder  mvn clean mvn install   With Juno I had to had this to my pom xml     lt build gt       lt pluginManagement gt         lt plugins gt           lt plugin gt             lt groupId gt org apache maven plugins lt  groupId gt             lt artifactId gt maven-compiler-plugin lt  artifactId gt             lt version gt 2 3 2 lt  version gt             lt configuration gt               lt  -- put your configurations here -- gt             lt  configuration gt           lt  plugin gt         lt  plugins gt       lt  pluginManagement gt     lt  build gt    And then   mvn install   And then from eclipse right click maven update project    Once the plugin is donwloaded you can remove the plugin from your pom xml

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run   mvn -U dependency go-offline   It works for me

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Right click project  pom xml  in eclipse and select Maven Install  Right click on the Project -  Maven -  Update Project   Then Refresh

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Jotting down some steps which help   Writing answer from eclipse perspective as base logic will remain the same whether done by Intellij or command line   Rt click your project -  Maven -  Update project -  Select Force update -  Click OK Under properties tag   add       gt    lt maven compiler source gt 1 8 lt  maven compiler source gt    gt   lt maven compiler target gt 1 8 lt  maven compiler target gt      In some instance   you will start seeing error as we tried force update   saying   failure to transfer X dependency from Y path   resolutions will not be reattempted   bla bla bla     In such case quickly fix it by cd to  m2 repository folder and run following command        for  r  i in    lastUpdated  do del  i

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I also faced the above error  I used Eclipse   After followed the below solution  it works fine for me   Solution is    Right click project  pom xml  in eclipse and select Maven Install  Right click on the project -  Maven -  Update Project  Refresh

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I solved it now  However it only is solved in Netbeans  Not sure why eclipse still won t take the settings xml that is changed  The solution is however to remove comment the User Password param in settings xml  Before     lt proxies gt       lt proxy gt         lt id gt optional lt  id gt         lt active gt true lt  active gt         lt protocol gt http lt  protocol gt         lt username gt proxyuser lt  username gt         lt password gt proxypass lt  password gt         lt host gt proxyserver company com lt  host gt         lt port gt 8080 lt  port gt         lt nonProxyHosts gt local net some host com lt  nonProxyHosts gt       lt  proxy gt     lt  proxies gt     After     lt proxies gt       lt proxy gt         lt id gt optional lt  id gt         lt active gt true lt  active gt         lt protocol gt http lt  protocol gt         lt host gt proxyserver company com lt  host gt         lt port gt 8080 lt  port gt         lt nonProxyHosts gt local net some host com lt  nonProxyHosts gt       lt  proxy gt     lt  proxies gt

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Maybe your network is slow  so that jar isn t downloaded completely   There are two methods   a  find your  m2 folder  you can find some path like this  org apache maven plugins maven-resources-plugin   you need only delete this foldler  maven-resources-plugin   because others are downloaded well   Then maven build your project   If other problem occures  repeat this process again   b  you can change a more quick maven source   Firstly  you should find maven s settings file window - prefernces -  maven -  user settings   If it is empty  you can create a new one  any path  for example   m2 settings    Secondly  add sth like this  From https   blog csdn net liangyihuai article details 57406870   This example uses aliyun s maven    lt settings xmlns  http   maven apache org SETTINGS 1 0 0        xmlns xsi  http   www w3 org 2001 XMLSchema-instance        xsi schemaLocation  http   maven apache org SETTINGS 1 0 0                           https   maven apache org xsd settings-1 0 0 xsd  gt          lt mirrors gt           lt mirror gt                 lt id gt alimaven lt  id gt                 lt name gt aliyun maven lt  name gt                 lt url gt http   maven aliyun com nexus content groups public  lt  url gt                 lt mirrorOf gt central lt  mirrorOf gt                     lt  mirror gt           lt  mirrors gt   lt  settings gt    Thirdly  maven build again   before this  you should delete your  m2 folder s files

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Excellent i got solution  Just clearing   m2  complete folder and starting a new maven project problem solved for me   Note    m2 folder located in os installed disk only  If you want the exact location  check in Eclipse  Eclipse-- window-- preferences-- maven-- user settings There local repository path is for  m2 Delete entire  m2 folder and restart your eclipse

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I was able to solve the same problem with different solution    The solution that worked for me was to Right click project  pom xml  in eclipse and select  Maven Install

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I have had this issue and I resolved it by following the next step   1- Close Eclipse   2- Go to user directory and delete the  m2 directory   3- Open Elipse   4- Right click on the project -  Run as -  maven install

[maven] 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

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