Non-resolvable parent POM Could not transfer artifact when trying to refer to a parent pom from a child pom with parent groupid

Question

I m following a tutorial for maven  I have a very simple project with a couple of modules inside  On the module pom I want to reference the main proyect pom version and group through   parent groupid  and   parent version  so if I change any of those I won t have to hunt the down in the child poms and change them but I m getting the Non-resolvable parent POM  Could not transfer artifact error  I ve read several  Non-resolvable parent POM   questions here at stackoverflow but nothing that I ve read has helped    My directory structure is as follows   tutorial maven dir   -- gt  pom xml file   -- gt  tutorial maven jar dir       -- gt  pom xml file    I m getting the following Error   Apache Maven 3 0 4  r1232337  2012-01-17 03 44 56-0500  Maven home  C  Program Files  x86  apache-maven-3 0 4 Java version  1 7 0 09  vendor  Oracle Corporation Java home  C  Program Files Java jdk1 7 0 09 jre Default locale  es EC  platform encoding  UTF-8 OS name   windows 7   version   6 1   arch   amd64   family   windows   INFO  Error stacktraces are turned on   DEBUG  Reading global settings from C  Program Files  x86  apache-maven-3 0 4 conf settings xml  DEBUG  Reading user settings from C  Users fureta DESARROLLO03  m2 settings xml  WARNING  Command line option -npr is deprecated and will be removed in future Maven versions   DEBUG  Using local repository at C  Users fureta DESARROLLO03  m2 repository  DEBUG  Using manager EnhancedLocalRepositoryManager with priority 10 for C  Users fureta DESARROLLO03  m2 repository  INFO  Scanning for projects     DEBUG  Using connector WagonRepositoryConnector with priority 0 for http   repo maven apache org maven2 Downloading  http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom  DEBUG  Writing resolution tracking file C  Users fureta DESARROLLO03  m2 repository   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom lastUpdated  DEBUG  Extension realms for project org felipe tutorial maven pom 1 0-SNAPSHOT   none   DEBUG  Looking up lifecyle mappings for packaging pom from ClassRealm plexus core  parent  null   DEBUG  Extension realms for project org felipe tutorial maven webapp war 1 0-SNAPSHOT   none   DEBUG  Looking up lifecyle mappings for packaging war from ClassRealm plexus core  parent  null   ERROR  The build could not read 1 project - gt   Help 1  org apache maven project ProjectBuildingException  Some problems were encountered while processing the POMs   WARNING   parent relativePath  points at org felipe tutorial maven instead of   parent groupId  tutorial maven  please verify your project structure   line 3  column 13  FATAL  Non-resolvable parent POM  Could not transfer artifact   parent groupId  tutorial maven pom   parent version  from to central  http   repo maven apache org maven2   Illegal character in path at index 37  http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom and  parent relativePath  points at wrong local POM   line 3  column 13  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 363  at org apache maven DefaultMaven collectProjects DefaultMaven java 636  at org apache maven DefaultMaven getProjectsForMavenReactor DefaultMaven java 585  at org apache maven DefaultMaven doExecute DefaultMaven java 234  at org apache maven DefaultMaven execute DefaultMaven java 156  at org apache maven cli MavenCli execute MavenCli java 537  at org apache maven cli MavenCli doMain MavenCli java 196  at org apache maven cli MavenCli main MavenCli java 141  at sun reflect NativeMethodAccessorImpl invoke0 Native Method  at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 57  at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43  at java lang reflect Method invoke Method java 601  at org codehaus plexus classworlds launcher Launcher launchEnhanced Launcher java 290  at org codehaus plexus classworlds launcher Launcher launch Launcher java 230  at org codehaus plexus classworlds launcher Launcher mainWithExitCode Launcher java 409  at org codehaus plexus classworlds launcher Launcher main Launcher java 352  at org codehaus classworlds Launcher main Launcher java 47  at sun reflect NativeMethodAccessorImpl invoke0 Native Method  at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 57  at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43  at java lang reflect Method invoke Method java 601  at com intellij rt execution application AppMain main AppMain java 120   ERROR      ERROR    The project   parent groupId  tutorial maven jar   parent version   C  Users fureta DESARROLLO03 IdeaProjects tutorial maven tutorial maven jar pom xml  has 1 error  ERROR      Non-resolvable parent POM  Could not transfer artifact    parent groupId  tutorial maven pom   parent version  from to central   http   repo maven apache org maven2   Illegal character in path at index 37   http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tuto rial maven-  parent version  pom and  parent relativePath  points at wrong local POM   line  3  column 13 - gt   Help 2  org apache maven model resolution UnresolvableModelException  Could not transfer  artifact   parent groupId  tutorial maven pom   parent version  from to central   http   repo maven apache org maven2   Illegal character in path at index 37   http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tuto rial maven-  parent version  pom at  org apache maven project ProjectModelResolver resolveModel ProjectModelResolver java 159  at org apache maven model building DefaultModelBuilder readParentExternally DefaultModelBuilder java 813  at org apache maven model building DefaultModelBuilder readParent DefaultModelBuilder java 664  at org apache maven model building DefaultModelBuilder build DefaultModelBuilder java 310  at org apache maven model building DefaultModelBuilder build DefaultModelBuilder java 232  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 410  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 379  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 495  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 379  at org apache maven project DefaultProjectBuilder build DefaultProjectBuilder java 343  at org apache maven DefaultMaven collectProjects DefaultMaven java 636  at org apache maven DefaultMaven getProjectsForMavenReactor DefaultMaven java 585  at org apache maven DefaultMaven doExecute DefaultMaven java 234  at org apache maven DefaultMaven execute DefaultMaven java 156  at org apache maven cli MavenCli execute MavenCli java 537  at org apache maven cli MavenCli doMain MavenCli java 196  at org apache maven cli MavenCli main MavenCli java 141  at sun reflect NativeMethodAccessorImpl invoke0 Native Method  at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 57  at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43  at java lang reflect Method invoke Method java 601  at org codehaus plexus classworlds launcher Launcher launchEnhanced Launcher java 290  at org codehaus plexus classworlds launcher Launcher launch Launcher java 230  at org codehaus plexus classworlds launcher Launcher mainWithExitCode Launcher java 409  at org codehaus plexus classworlds launcher Launcher main Launcher java 352  at org codehaus classworlds Launcher main Launcher java 47  at sun reflect NativeMethodAccessorImpl invoke0 Native Method  at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 57  at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43  at java lang reflect Method invoke Method java 601  at com intellij rt execution application AppMain main AppMain java 120  Caused by  org sonatype aether resolution ArtifactResolutionException  Could not  transfer artifact   parent groupId  tutorial maven pom   parent version  from to central   http   repo maven apache org maven2   Illegal character in path at index 37   http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tuto rial maven-  parent version  pom at  org sonatype aether impl internal DefaultArtifactResolver resolve DefaultArtifactResolver java 538  at org sonatype aether impl internal DefaultArtifactResolver resolveArtifacts DefaultArtifactResolver java 216  at org sonatype aether impl internal DefaultArtifactResolver resolveArtifact DefaultArtifactResolver java 193  at org sonatype aether impl internal DefaultRepositorySystem resolveArtifact DefaultRepositorySystem java 286  at org apache maven project ProjectModelResolver resolveModel ProjectModelResolver java 155      30 more Caused by  org sonatype aether transfer ArtifactTransferException  Could not transfer artifact   parent groupId  tutorial maven pom   parent version  from to central  http   repo maven apache org maven2   Illegal character in path at index 37  http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom at org sonatype aether connector wagon WagonRepositoryConnector 4 wrap WagonRepositoryConnector java 951  at org sonatype aether connector wagon WagonRepositoryConnector 4 wrap WagonRepositoryConnector java 941  at org sonatype aether connector wagon WagonRepositoryConnector GetTask run WagonRepositoryConnector java 669  at org sonatype aether util concurrency RunnableErrorForwarder 1 run RunnableErrorForwarder java 60  at java util concurrent ThreadPoolExecutor runWorker ThreadPoolExecutor java 1110  at java util concurrent ThreadPoolExecutor Worker run ThreadPoolExecutor java 603  at java lang Thread run Thread java 722  Caused by  java lang IllegalArgumentException  Illegal character in path at index 37  http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom at java net URI create URI java 859  at org apache maven wagon providers http httpclient client methods HttpGet  lt init gt  HttpGet java 69  at org apache maven wagon shared http4 AbstractHttpClientWagon fillInputData AbstractHttpClientWagon java 778  at org apache maven wagon StreamWagon getInputStream StreamWagon java 116  at org apache maven wagon StreamWagon getIfNewer StreamWagon java 88  at org apache maven wagon StreamWagon get StreamWagon java 61  at      org sonatype aether connector wagon WagonRepositoryConnector GetTask run WagonRepositoryConnector java 601      4 more Caused by  java net URISyntaxException  Illegal character in path at index 37  http   repo maven apache org maven2   parent groupId  tutorial maven   parent version  tutorial maven-  parent version  pom at java net URI Parser fail URI java 2829  at java net URI Parser checkChars URI java 3002  at java net URI Parser parseHierarchical URI java 3086  at java net URI Parser parse URI java 3034  at java net URI  lt init gt  URI java 595  at java net URI create URI java 857      10 more  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 ProjectBuildingException  ERROR   Help 2    http   cwiki apache org confluence display MAVEN UnresolvableModelException   I ve read through the links at Help 1 and Help 2 but found nothing that helps  From what I can understand from the logs is that maven is looking for my main pom in the maven repositories     What am I missing   My main 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 org felipe lt  groupId gt     lt artifactId gt tutorial maven lt  artifactId gt     lt version gt 1 0-SNAPSHOT lt  version gt       lt modules gt           lt module gt tutorial maven jar lt  module gt           lt module gt tutorial maven webapp lt  module gt       lt  modules gt       lt packaging gt pom lt  packaging gt      lt name gt tutorial maven lt  name gt     lt url gt http   maven apache org lt  url gt      lt properties gt       lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt       lt  -- lt log4j version gt 1 2 17 lt  log4j version gt -- gt     lt  properties gt      lt dependencies gt       lt dependency gt         lt groupId gt junit lt  groupId gt         lt artifactId gt junit lt  artifactId gt         lt version gt 3 8 1 lt  version gt         lt scope gt test lt  scope gt       lt  dependency gt     lt  dependencies gt   lt  project gt    my module 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 parent gt           lt artifactId gt tutorial maven lt  artifactId gt           lt groupId gt   parent groupId  lt  groupId gt           lt version gt   parent version  lt  version gt           lt relativePath gt    pom xml lt  relativePath gt       lt  parent gt       lt modelVersion gt 4 0 0 lt  modelVersion gt        lt artifactId gt tutorial maven jar lt  artifactId gt       lt packaging gt jar lt  packaging gt        lt name gt tutorial maven jar lt  name gt       lt url gt http   maven apache org lt  url gt        lt properties gt            lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt       lt  properties gt        lt build 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 source gt 1 7 lt  source gt                       lt target gt 1 7 lt  target gt                   lt  configuration gt               lt  plugin gt           lt  plugins gt       lt  build gt        lt dependencies gt           lt dependency gt               lt groupId gt junit lt  groupId gt               lt artifactId gt junit lt  artifactId gt               lt version gt 3 8 1 lt  version gt               lt scope gt test lt  scope gt               lt  -- lt optional gt true lt  optional gt -- gt           lt  dependency gt            lt dependency gt               lt groupId gt log4j lt  groupId gt               lt artifactId gt log4j lt  artifactId gt               lt version gt 1 2 17 lt  version gt           lt  dependency gt       lt  dependencies gt   lt  project gt    Best regards  Felipe

User · Answer

I assume the question is already answered. If above solution doesn't help in solving the issue then can use below to solve the issue.

The issue occurs if sometimes your maven user settings is not reflecting correct settings.xml file.

To update the settings file go to Windows > Preferences > Maven > User Settings and update the settings.xml to it correct location.

Once this is doen re-build the project, these should solve the issue. Thanks.

User · Answer

Looks like you re trying to both inherit the groupId from the parent  and simultaneously specify the parent using an inherited groupId   In the child pom  use something like this    lt modelVersion gt 4 0 0 lt  modelVersion gt    lt parent gt     lt groupId gt org felipe lt  groupId gt     lt artifactId gt tutorial maven lt  artifactId gt     lt version gt 1 0-SNAPSHOT lt  version gt     lt relativePath gt    pom xml lt  relativePath gt   lt  parent gt    lt artifactId gt tutorial maven jar lt  artifactId gt    Using properties like   project groupId  won t work there  If you specify the parent in this way  then you can inherit the groupId and version in the child pom  Hence  you only need to specify the artifactId in the child pom

User · Answer

As Nayan said the Path has to updated properly  in my case the apache-maven was installed in C  apache-maven and  settings xml was found inside C  apache-maven conf settings xml  if this doesn t work go to your local repos  in my case C  Users  lt  lt  name    m2  and search for  lastUpdated and delete them then build the maven

User · Answer

I had the same issue  Fixed by adding a pom xml in parent folder with  lt modules gt  listed

[maven] "Non-resolvable parent POM: Could not transfer artifact" when trying to refer to a parent pom from a child pom with ${parent.groupid}

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