[okular] [Bug 411245] New: Unable to create io-slave

[sergey]

https://bugs.kde.org/show_bug.cgi?id=411245

            Bug ID: 411245
           Summary: Unable to create io-slave
           Product: okular
           Version: 1.7.2
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: pisnicsergey at gmail.com
  Target Milestone: ---

OVERVIEW
Sad experience - i lost my annotations for two chapters from a book.

STEPS TO REPRODUCE
i opened a book in okular and was adding annotations without intermediate save
during several hours. When i wanted to close book and save it, got error
message and empty file listing in directory about to save (this should be the
hint)    

OBSERVED RESULT
Error while trying to save document with added annotations to ".okular"
archive.
Error message:
"Unable to create io-slave. Can not create socket for launching io-slave for
protocol 'file'..."

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Linux/Ubuntu 18.04.2 LTS

ADDITIONAL INFORMATION
i understand this may be related to system side bug, when app is not able to
list files in directory, but the app itself may resist in this scenario by
knowing destination file path only

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