An internal error occurred during: "Resolver". java.lang.NullPointerException

Question

when every time i open eclipse , it will pop out a series of bugs as follows thanks for anyone who can help me handle the bugs

work environment:ubuntu 16.04 ，eclipse version：eclipse-jee-oxygen-R-linux-gtk-x86_64.tar.gz

    An internal error occurred during: "Load https://github.com/meysholdt/Xpect/raw/master/org.xpect.releng/Xpect.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Load https://github.com/meysholdt/Xpect/raw/master/org.xpect.releng/Xpect.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Load https://raw.githubusercontent.com/JanKoehnlein/FXDiagram/master/de.fxdiagram.docs/FXDiagram.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Load https://raw.githubusercontent.com/JanKoehnlein/FXDiagram/master/de.fxdiagram.docs/FXDiagram.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Load https://raw.githubusercontent.com/LorenzoBettini/javamm/master/javamm.workspace/Javamm.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Load https://raw.githubusercontent.com/LorenzoBettini/javamm/master/javamm.workspace/Javamm.setup".
    java.lang.NullPointerException
    An internal error occurred during: "Load https://raw.githubusercontent.com/LorenzoBettini/xsemantics/master/devtools/it.xsemantics.workspace/Xsemantics.setup".
    java.lang.NullPointerException

    An internal error occurred during: "Resolver".
    java.lang.NullPointerException

    Resolver 
    Resolver

Answer 1

Just reinstall eclipse I had a similar problem, fixed it just by deleting Eclipse and its workspace and reinstalling it and creating a new workspace. though you may not have to delete your workspace