m2e error in MavenArchiver getManifest

Question

I am seeing an error in my STS and am not sure how to debug it  Searching around I only see vague references to the error and no solutions   The error is      org apache maven archiver MavenArchiver getManifest org apache maven project MavenProject  org apache maven archiver MavenArchiveConfiguration  pom xml   lt maven projectName gt  line 1 Maven Configuration Problem   Question  Can anyone give any suggestions on how to get more information on the issue in order to debug it further or any possible solutions   Maybe some more context on what the functionality of method is  The javadoc associated with the MavenArchiver getManifest   method is not very detailed and there is no stack trace that I see  I ve tried several refreshes and updates of the project and associated projects including clearing my local m2 repo   STS info    Version  3 7 3 RELEASE Build Id  201602250940 Platform  Eclipse Mars 2  4 5 2    m2e info    Version  1 6 2 20150902-0002

User · Answer

I found my answer   I looked into the pom for any plugins that have a dependency on the maven-archiver and found the maven-jar-plugin does   It was using the latest 3 0 0 version   When I downgraded to 2 6 it seems to fix the issue  -

User · Answer

I encountered the same issue after updating the maven-jar-plugin to its latest version  at the time of writing   3 0 2  Eclipse 4 5 2 started flagging the pom xml file with the org apache maven archiver MavenArchiver getManifest error and a Maven   Update Project   would not fix it   Easy solution  downgrade to 2 6 version Indeed a possible solution is to get back to version 2 6  a further update of the project would then remove any error  However  that s not the ideal scenario and a better solution is possible  update the m2e extensions  Eclipse Maven integration    Better solution  update Eclipse m2e extensions From Help   Install New Software    add a new repository  via the Add   option   pointing to the following URL    https   repo1 maven org maven2  m2e connectors m2eclipse-mavenarchiver 0 17 2 N LATEST    Then follow the update wizard as usual  Eclipse would then require a restart  Afterwards  a further Update Project   on the concerned Maven project would remove any error and your Maven build could then enjoy the benefit of the latest maven-jar-plugin version     Additonal notes The reason for this issue is that from version 3 0 0 on  the concerned component  the maven-archiver and the related plexus-archiver has been upgraded to newer versions  breaking internal usages  via reflections  of the m2e integration in Eclipse  The only solution is then to properly update Eclipse  as described above  Also note  while Eclipse would initially report errors  the Maven build  e g  from command line  would keep on working perfectly  this issue is only related to the Eclipse-Maven integration  that is  to the IDE

User · Answer

I had the same problem with a spring boot project  the solution was to downgrade the jar maven-jar-plugin from 3 2 to 2 6   i had just to add this to the project pom    lt properties gt               lt maven-jar-plugin version gt 2 6 lt  maven-jar-plugin version gt   lt  properties gt

User · Answer

I solved this error in pom xml by adding the below code          spring-rest-demo                                                                 org apache maven plugins                     maven-war-plugin                     2 6

User · Answer

I had exactly the same problem  My environment was    Spring STS 3 7 3 RELEASE Build Id  201602250940 Platform  Eclipse Mars 2  4 5 2    The symptoms of the problems were    There was a red error flag on my PM file  and the description of the error was as described in the original question asked here  There were known compilation problems in the several Java files in the project  but eclipse still was not showing them flagged as error in the editor pane as well as the project explorer tree on the left side    The solution  described above  about updating the m2e extensions worked for me   Better solution  my recommondation     update Eclipse m2e extensions From Help   Install New Software    add a new repository  via the Add   option   pointing to the following URL  https   otto takari io content sites m2e extras m2eclipse-mavenarchiver 0 17 2 N LATEST  Select the m2e extensions  accept the license  After update  you will be asked for restarting STS  The problem goes away after STS comes back up

User · Answer

Upgrade your m2e extensions instead downgrade   From Help   Install New Software    add a new repository  via the Add   option   Specify name for your plugin and add path http   repo1 maven org maven2  m2e connectors m2eclipse-mavenarchiver 0 17 2 N LATEST   once you are done with installation  please restart eclipse and update your project

User · Answer

I also faced the similar issues  changing the version from 2 0 0 RELEASE to 1 5 10 RELEASE worked for me  please try it before downgrading the maven version   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 5 10 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

User · Answer

I had also faced the same issue and it got resolved by changing the version from 3 2 0 to 2 6 as shown in below pom xml snippet   lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-war-plugin lt  artifactId gt       lt version gt 2 6 lt  version gt       lt configuration gt           lt warSourceDirectory gt src main webapp lt  warSourceDirectory gt           lt warName gt Spring4MVC lt  warName gt           lt failOnMissingWebXml gt false lt  failOnMissingWebXml gt       lt  configuration gt   lt  plugin gt

User · Answer

I had also faced the same issue and it got resolved by commenting the version element in POM xml as show   org apache maven archiver  MavenArchiver  https   maven apache org shared maven-archiver apidocs org apache maven archiver MavenArchiver html  getManifest org apache maven project MavenProject  org apache maven archiver MavenArchiveConfiguration    lt plugins gt     lt plugin gt       lt artifactId gt maven-compiler-plugin lt  artifactId gt       lt  --  lt version gt 3 5 1 lt  version gt  -- gt       lt configuration gt         lt source gt 1 7 lt  source gt         lt target gt 1 7 lt  target gt       lt  configuration gt     lt  plugin gt     lt plugin gt       lt artifactId gt maven-war-plugin lt  artifactId gt       lt  --  lt version gt 3 1 0 lt  version gt  -- gt       lt configuration gt         lt warSourceDirectory gt WebContent lt  warSourceDirectory gt         lt failOnMissingWebXml gt false lt  failOnMissingWebXml gt       lt  configuration gt     lt  plugin gt   lt  plugins gt

User · Answer

Use the steps given in this link  It worked for me   Step - 1 Right click on your project in Eclipse  Step - 2 Click Properties  Step - 3 Select Maven in the left hand side list   Step - 4 You will notice  pom xml  in the Active Maven Profiles text box on the right hand side  Clear it and click Apply   Step - 5 Run As -  Maven clean -  Maven Install  Hope it helps

User · Answer

I had the same problem with a spring boot project  The solution was to downgrade the spring-boot-starter-parent dependency version from 2 0 0 RELEASE to 1 5 10 RELEASE you can move to any stable version   from    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 2 0 0 RELEASE lt  version gt       lt relativePath  gt   lt  -- lookup parent from repository -- gt   lt  parent gt    to   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 5 10 RELEASE lt  version gt           lt relativePath  gt   lt  -- lookup parent from repository -- gt       lt  parent gt

[eclipse] m2e error in MavenArchiver.getManifest()

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