Problème avec eclipse

Bonjours

voilà je veux créer un launcher pour le jeux minecraft
Pour le créer j’ai besoin de éclipse sauf qu’a la fin je dois faire Run As—> Maven Build… et dans goals je dois marquer Package puis je clique sur RUN et après execution, à la fin j’ai des erreurs et mon fichier ne c’est pas créer dans le dossier
Merci d’avance pour vos réponse

Voici ce que ça me marquer “tout y est”:

[code]SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See www.slf4j.org… for further details.
[INFO] Scanning for projects…
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building minecraft-launcher 1.0.1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] — maven-resources-plugin:2.5:resources (default-resources) @ minecraft-launcher —
[debug] execute contextualize
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 3 resources
[INFO]
[INFO] — maven-compiler-plugin:2.3.2:compile (default-compile) @ minecraft-launcher —
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] — maven-resources-plugin:2.5:testResources (default-testResources) @ minecraft-launcher —
[debug] execute contextualize
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:UsersAlexDesktopyoutube1.7.2 crackminecraft-launchersrctestresources
[INFO]
[INFO] — maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ minecraft-launcher —
[INFO] No sources to compile
[INFO]
[INFO] — maven-surefire-plugin:2.10:test (default-test) @ minecraft-launcher —
[INFO] Surefire report directory: C:UsersAlexDesktopyoutube1.7.2 crackminecraft-launchertargetsurefire-reports


T E S T S

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] — maven-jar-plugin:2.3.2:jar (default-jar) @ minecraft-launcher —
[INFO]
[INFO] — maven-assembly-plugin:2.2-beta-5:single (default) @ minecraft-launcher —
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.645s
[INFO] Finished at: Mon Jun 16 09:51:16 CEST 2014
[INFO] Final Memory: 7M/18M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5:single (default) on project minecraft-launcher: Execution default of goal org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5:single failed: A required class was missing while executing org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5:single: org/codehaus/plexus/util/IOUtil
[ERROR] -----------------------------------------------------
[ERROR] realm = plugin>org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/plugins/maven-assembly-plugin/2.2-beta-5/maven-assembly-plugin-2.2-beta-5.jar
[ERROR] urls[1] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.1/maven-common-artifact-filters-1.1.jar
[ERROR] urls[2] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/maven-plugin-testing-harness/1.1/maven-plugin-testing-harness-1.1.jar
[ERROR] urls[3] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.7/plexus-interpolation-1.7.jar
[ERROR] urls[4] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-archiver/1.0-alpha-12/plexus-archiver-1.0-alpha-12.jar
[ERROR] urls[5] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/file-management/1.1/file-management-1.1.jar
[ERROR] urls[6] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/maven-shared-io/1.1/maven-shared-io-1.1.jar
[ERROR] urls[7] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/maven-filtering/1.0-beta-2/maven-filtering-1.0-beta-2.jar
[ERROR] urls[8] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.6/maven-reporting-api-2.0.6.jar
[ERROR] urls[9] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.0-alpha-7/doxia-sink-api-1.0-alpha-7.jar
[ERROR] urls[10] = file:/C:/Users/Alex/.m2/repository/commons-cli/commons-cli/1.0/commons-cli-1.0.jar
[ERROR] urls[11] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
[ERROR] urls[12] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-active-collections/1.0-beta-2/plexus-active-collections-1.0-beta-2.jar
[ERROR] urls[13] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-io/1.0-alpha-4/plexus-io-1.0-alpha-4.jar
[ERROR] urls[14] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/maven-archiver/2.4/maven-archiver-2.4.jar
[ERROR] urls[15] = file:/C:/Users/Alex/.m2/repository/junit/junit/3.8.1/junit-3.8.1.jar
[ERROR] urls[16] = file:/C:/Users/Alex/.m2/repository/org/codehaus/plexus/plexus-utils/2.0.1/plexus-utils-2.0.1.jar
[ERROR] urls[17] = file:/C:/Users/Alex/.m2/repository/org/apache/maven/shared/maven-repository-builder/1.0-alpha-2/maven-repository-builder-1.0-alpha-2.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]]
[ERROR]
[ERROR] -----------------------------------------------------: org.codehaus.plexus.util.IOUtil
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] cwiki.apache.org…

Il te manque plexus-utils ?
Vérifies si tu es en Java 1.6 et fais un Run as Maven Build, et remplace “package” par “clean package”.

Je sais comment qu’il me manque plexus-utils et je suis déjà en java 1.6