Public bug reported:

The button "add" (Tools -> OCR-Engines ->  Add) doesn't work properly.
If one tries to save the data you entered on the fields, then one gets
always an error-message: "Error setting the new engine; please check
your engine settings.".

I want want to specify an ocr-engine per language. Taking a copy of the 
existing engine by using the "add"-button, doesn't work
(-> error-message). In order to circumvent this bug, one has to enter the 
"detect"-button. A new ocr-engine-entry is then created and by editing this new 
entry one accomplish the adding of an engine.

Example:

Existing ocr-engine = Tesseract

TIF

/usr/bin/tesseract
$IMAGE $FILE > /dev/null 2> /dev/null; cat $FILE.txt; rm $FILE $FILE.txt

--> The button "detect" yields a copy of this entry. You can edit this
entry and no errors will be returned.

Added ocr-engine = Tesseract-French

TIF

/usr/bin/tesseract
$IMAGE $FILE -l fra > /dev/null 2> /dev/null; cat $FILE.txt; rm $FILE $FILE.txt

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ocrfeeder 0.7.9-1
ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Sun Feb 10 10:35:40 2013
InstallationDate: Installed on 2012-10-18 (114 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ocrfeeder
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ocrfeeder (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug quantal running-unity

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https://bugs.launchpad.net/bugs/1121016

Title:
  Button "add engine" doesn't work properly

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