Why am I seeing so many error messages?

[joseppi]

Linux Mint 13 installed on my system is shown to be version 4.8.3 and I have done all the updates (group 1 and 2). I have also attempted to disable and remove akonadi, nepomuk, and everything related to them because I do not need or want any indexing or desktop search activity on my systems.

Why am I seeing this file frequently added, and how can I stop it?
C:\nppdf32Log\debuglog.txt

And, why am I seeing so many error messages when I run various applications from the command line?

For example, when I use gwenview, I see all the messages shown below. What can I do to stop all these nuisance messages?

"/usr/bin/gwenview(6287)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/gwenview(6287)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/gwenview(6287)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/gwenview(6287)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/gwenview(6287)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/gwenview(6287)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/gwenview(6287)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/gwenview(6287)" Soprano: "QLocalSocket::connectToServer: Invalid name"
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /home/joe/.config/ibus/bus
"/usr/bin/gwenview(6287)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/gwenview(6287)" Soprano: "QLocalSocket::connectToServer: Invalid name"
gwenview(6287)/kdeui (kdelibs): Attempt to use QAction "edit_redo" with KXMLGUIFactory!
gwenview(6287)/kdeui (kdelibs): Attempt to use QAction "edit_undo" with KXMLGUIFactory!
gwenview(6287) Gwenview::ViewMainPagePrivate::setCurrentView: No index found for current view