Hi,

when adding the plasmoid I get that Qt.Websocket could not be found. but I could fix it after installing qt5-qtwebsockets-devel.

I have Fedora an Qt5.7 running. 

From 7fa5ba4f2ade54e9e7fc367b9e05411ce10880d4 Mon Sep 17 00:00:00 2001
From: Christian Tacke <kde-bugs@ctacke.de>
Date: Sat, 18 Mar 2017 17:05:52 +0100
Subject: [PATCH] fix QtWebSockets include

---
 plasmoid/contents/ui/main.qml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plasmoid/contents/ui/main.qml b/plasmoid/contents/ui/main.qml
index 1e6798e..4172b4b 100644
--- a/plasmoid/contents/ui/main.qml
+++ b/plasmoid/contents/ui/main.qml
@@ -21,7 +21,7 @@ import QtQuick 2.0
 import QtQml.Models 2.2
 import QtQuick.Controls 2.0
 import QtQuick.Layouts 1.0
-import Qt.WebSockets 1.0
+import QtWebSockets 1.0
 import QtQuick.Controls.Styles 1.4
 import Qt.labs.settings 1.0
 import org.kde.plasma.core 2.0 as PlasmaCore
-- 
2.9.3