i have been using "Eclipse Java EE IDE for Web Developers" for some time. I am learning java for learning selenium.
One day I tried installing "TestNG" since then I am receiving a strange error whenever I try to create project, create class, delete class, Run class etc. Even after I uninstalled "TestNG" I am facing this issue.

The issue details are,
When I create a Project a pop up appears saying, "Building Workspace" has encountered a problem. Errors occurred during the build.

In Details section it says,
Errors occurred during the build.
Errors running builder 'Java Builder' on project 'My_Java_Practise'.
org/hibernate/eclipse/nature/HibernateNature

I have even tried creating a new workspace but same issue.

Error log
rg.osgi.framework.BundleException: Exception in
org.hibernate.eclipse.console.HibernateConsolePlugin.start() of bundle
org.hibernate.eclipse.console.
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:806)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:284)
at
org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
at
org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
at
org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at
org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
at
org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:33)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:466)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(Unknown Source)
at
org.hibernate.eclipse.jdt.ui.internal.HQLExpressionCompilerParticipant.isActive(HQLExpressionCompilerParticipant.java:56)
at
org.eclipse.jdt.internal.core.JavaModelManager$CompilationParticipants.getCompilationParticipants(JavaModelManager.java:318)


Thank you.