Okular::Document::openDocument: No plugin for mimetype '"application/epub+zip"'

[shirish शिरीष <shirishag75@gmail.com>]

Hi all,
I was opening an .epub file and got the following statements and error :-

okular(25729)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
okular(25729)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
okular(25729)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
okular(25729)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
okular(25729)/okular (app) Okular::Document::openDocument: No plugin
for mimetype '"application/epub+zip"'.

See the last line, it says no plugin for mimetype
"application/epub+zip" . Don't know what to make head or tail of it.
Okular version is 4:4.7.4-2 and system is up-to-date. The file itself
is good as I was able to open it in other apps.

Looking forward to answers.
-- 
          Regards,
          Shirish Agarwal  शिरीष अग्रवाल
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