An error occurred (org/eclipse/jdt/core/javacore)

[RAJ6]

HI Talend Folks,

                     When i open talend tool. I am getting error message. could please tell me. how to solve this issues without uninstall?

Error message:

An error occurred (org/eclipse/jdt/core/javacore)

java.lang.NoClassDefFoundError: org/eclipse/jdt/core/JavaCore
at org.talend.commons.utils.generation.JavaUtils.applyCompilerCompliance(JavaUtils.java:257)
at org.talend.commons.utils.generation.JavaUtils.updateProjectJavaVersion(JavaUtils.java:238)
at org.talend.core.repository.model.ProxyRepositoryFactory.logOnProject(ProxyRepositoryFactory.java:1935)
at org.talend.repository.ui.login.LoginHelper$1.run(LoginHelper.java:441)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.jdt.core (641).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:116)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:327)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:398)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 5 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.jdt.core.JavaCore.start() of bundle org.eclipse.jdt.core.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:792)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:721)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:941)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:318)
at org.eclipse.osgi.container.Module.doStart(Module.java:571)
at org.eclipse.osgi.container.Module.start(Module.java:439)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
... 14 more
Caused by: org.eclipse.core.internal.resources.ResourceException: Could not read metadata for 'C:\Users\GISPLBL-04\workspace\.metadata\.plugins\org.eclipse.core.resources\.root\.indexes\properties.index'. Unexpected version: 0.
at org.eclipse.core.internal.localstore.Bucket.load(Bucket.java:303)
at org.eclipse.core.internal.properties.PropertyBucket.load(PropertyBucket.java:258)
at org.eclipse.core.internal.localstore.Bucket.load(Bucket.java:274)
at org.eclipse.core.internal.localstore.BucketTree.loadBucketFor(BucketTree.java:115)
at org.eclipse.core.internal.properties.PropertyManager2.getProperty(PropertyManager2.java:134)
at org.eclipse.core.internal.resources.Resource.getPersistentProperty(Resource.java:1205)
at org.eclipse.jdt.internal.core.JavaModelManager.loadVariablesAndContainers(JavaModelManager.java:3265)
at org.eclipse.jdt.internal.core.JavaModelManager.startup(JavaModelManager.java:5036)
at org.eclipse.jdt.core.JavaCore.start(JavaCore.java:5651)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:771)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:764)
... 21 more

[Anonymous · Accepted solution]

Hello,

Is it Ok with new workspace? Did you get this error when you start the studio with new project?

Best regards

Sabrina

[Anonymous]

Create a new workspace.

Import the project from the workspace and check it.

If you face the same issue import the project without .metadata,.JETEmitters,.Java.

[Anonymous]

Hello ,

Thanks for sharing your solution here.

Best regards

Sabrina

[Anonymous]

Hi

Local Project -java when open An error occurre(org/eclipse/jdt/core/javacore)

After creating a new project or Import a demo project same error occurre.

Plz provide any solution .... 

[Anonymous]

Hello,

---

@ksingh wrote:

Hi

Local Project -java when open An error occurre(org/eclipse/jdt/core/javacore)

After creating a new project or Import a demo project same error occurre.

Plz provide any solution .... 

---

 Can you please clarify in which Talend version/edition you are? Have you tried to re-install your studio completely to see if it works well?

Best regards

Sabrina

[Anonymous]

thank u. now it is working. my Talend is 6.2. am researt my laptop after
that its working.

[Anonymous]

Dear Folks

thanks

when am open Talend that issue was am facing. that time my system is updating after sometime my system restart this problem is automatically solve.

[Anonymous]

Hello,

Great your issue has been fixed.

Best regards

Sabrina

[Anonymous]

Hi! I faced the exact same problem, but managed to fix by clicking on "manage connection" and reseting the workspace folder.
Just wanted do leave here this possible solution as well.