Konqueror doesn't launch from desktop entry

[林博仁(Buo-ren Lin)]

Bug reproducing instructions
============================
1. Locate Konqueror entry from desktop menu
2. Click the menu entry in order to launch Konqueror

Expected behavior
=================
Konqueror launches.

Current behavior
================
Konqueror doesn't launch. In KDE the icon appears in the task bar with the launching animation and then disappears.

Workaround
==========
1. Alt-F2 to fire up a command prompt
2. Input `konqueror about:konqueror`
3. Press enter

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: konqueror 4:18.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-16.17-generic 5.0.8
Uname: Linux 5.0.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Jun 22 23:24:10 2019
InstallationDate: Installed on 2019-05-08 (45 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcEnviron:
 LANGUAGE=zh_TW:zh
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=zh_TW.UTF-8
 SHELL=/bin/bash
SourcePackage: konqueror
UpgradeStatus: No upgrade log present (probably fresh install)