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Home/ Questions/Q 9268547
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Editorial Team
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Editorial Team
Asked: June 18, 20262026-06-18T14:50:35+00:00 2026-06-18T14:50:35+00:00

I have copied my project from pc to other and i got error import

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I have copied my project from pc to other and i got error

  1. import javax.persistence.EntityManager;
    importjavax.persistence.EntityManagerFactory; import
    javax.persistence.Persistence; import javax.persistence.Query;

the compiler doesn’t know them, in the lib folder i added 3 jar from the local pc
derby.jar eclipselink.jar and also javax.persistence_2.0.4.v201112161009.jar

what could be the reason

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  1. Editorial Team
    Editorial Team
    2026-06-18T14:50:36+00:00Added an answer on June 18, 2026 at 2:50 pm

    add two more Jar’s that are

    toplink-essentials.jar
    toplink-essentials-agent.jar
    

    Add this external jars to your project

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