FailedConsole Output

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[INFO] Building Tests 0.1.0-SNAPSHOT
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[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ dgss1617-letta-teama-tests ---
[INFO] Deleting /var/lib/jenkins/workspace/LETTA 1617 Team A/tests/target
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[INFO] --- maven-resources-plugin:3.0.1:resources (default-resources) @ dgss1617-letta-teama-tests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 10 resources
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[INFO] --- maven-compiler-plugin:3.5.1:compile (default-compile) @ dgss1617-letta-teama-tests ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to /var/lib/jenkins/workspace/LETTA 1617 Team A/tests/target/classes
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[ERROR] COMPILATION ERROR : 
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[ERROR] /var/lib/jenkins/workspace/LETTA 1617 Team A/tests/src/main/java/es/uvigo/esei/dgss/teama/letta/entities/IsEqualToUser.java:[24,53] invalid method reference
  cannot find symbol
    symbol:   method getId()
    location: class es.uvigo.esei.dgss.project.domain.User
[ERROR] /var/lib/jenkins/workspace/LETTA 1617 Team A/tests/src/main/java/es/uvigo/esei/dgss/teama/letta/entities/IsEqualToEvent.java:[29,65] invalid method reference
  cannot find symbol
    symbol:   method getCategories()
    location: class es.uvigo.esei.dgss.project.domain.Event
[ERROR] /var/lib/jenkins/workspace/LETTA 1617 Team A/tests/src/main/java/es/uvigo/esei/dgss/teama/letta/entities/IsEqualToEvent.java:[32,63] invalid method reference
  cannot find symbol
    symbol:   method getDuration()
    location: class es.uvigo.esei.dgss.project.domain.Event
[INFO] 3 errors 
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