Could not create the view: Drag Placerholder

I have an error when starting Eclipse which is :

Could not create the view: Drag Placerholder.

No programs were starting. Need your help.

I put some of the stacktrace here :

java.lang.Exception at org.eclipse.ui.internal.ViewReference.createErrorPart(ViewReference.java:112) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:98) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPart(CompatibilityPart.java:278) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:316) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:966) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:931) at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:151) at...