CODEWITHSUNDEEP
eclipsejpa-2.0
AllieCat
AllieCat

Reputation: 3960

Eclipse bug: This project has the JPA facet, but no JPA project could be created

After restarting Eclipse, I get the following error in my project:

This project has the JPA facet, but no JPA project could be created. See the error log for more details.

Nothing I've done (clean project, maven update, etc) will get rid of the error. My JPA Content icon remains greyed out.

enter image description here

It looks like this was a resolved bug at Eclipse bugs...but then why am I still getting it? Should I submit a bug report to Eclipse?

Upvotes: 24

Views: 42335

Answers (11)

Rafael Rocha
Rafael Rocha

Reputation: 325

Like kaushikjain said, validate your project and the error will disappear. This worked like a charm to me.

Right click in your project and Validate.

enter image description here

Upvotes: -2

Nahla
Nahla

Reputation: 29

Click right button on your project-->properties-->validation-->uncheck JPA Validation .

That works for me!

Upvotes: 1

f6rnando
f6rnando

Reputation: 49

  1. Alt+Enter in the project
  2. Go for Project facets
  3. Uncheck JPA and accept
  4. Right click in the project, go for Validate
  5. Alt+Enter in the project
  6. Go for Project facets
  7. Check JPA` and accept

Upvotes: 4

Hanz
Hanz

Reputation: 79

To get rid of this error in Eclipse Luna, I just did a right-click on the project and chose the "Validate" menu item.

Upvotes: 6

Jalpesh
Jalpesh

Reputation: 1134

Although this is an old thread, will try to give info that might just help someone.

I assume you have imported a project and it is giving this error.

Step 1 : Check under project properties if jpa is configured.

Step 2 : I have used eclipseLink as the user library for jpa. If you are using eclipse as well, try installing the plugin.

Step 3 : Check the version of jpa under project properties-> project facets... check for any conflicts in version, usually seen for java version and or any supporting libs. You should be able to change the version from facets.

JPA installation and configuration JPA installation and config

Step 4 : once JPA is configured for the project, clean and check. This should work.

Upvotes: 2

kaushikjain
kaushikjain

Reputation: 291

For me all the above didnt worked.

So I tried Project Properties>Validate. It solved my problem.

Upvotes: 24

Manu
Manu

Reputation: 4137

For me, it was enough to clean the project. Trying to disable JPA in the facet window caused an Exception.

Upvotes: 0

WhiteOwl
WhiteOwl

Reputation: 1

If you do not want to use JPA, simply restart your eclipse and clean the project.

I had same problem when I copied JPA Entity to non-JPA project. It worked for me and I hope it does so for yours :)

Upvotes: -3

Michael
Michael

Reputation: 1

Looks like the problem is in some cases caused by a missing JPA implementation in the classpath. After I added a Maven (test scope) dependency, the Eclipse error message disappeared:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>4.3.1.Final</version>
    <scope>test</scope>
</dependency>

I this special case I had a "war" project that has a "persistence.xml" but no JPA code itself. The JPA stuff is in the referenced libraries (JARs).

Upvotes: 0

Seb
Seb

Reputation: 1118

This is a configuration problem of the project. To solve this problem go to the project properties, and in the node "project facets" unchecked JPA and apply the changes. Now you can checked JPA and apply again!

Upvotes: 44

carrizo
carrizo

Reputation: 65

I had the same problem and resolved it by installing both apt and jdt connectors for m2e.

Go to Window > Preferences > Maven > Discovery > Open Catalog. Look for m2e-apt and m2e-jdt-compiler. Install and then restart eclipse.

Upvotes: 1

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