[Qt-creator] How to build Qt Creator documentation from the sources

[Szyk Cech]

Hi!
I try generate documentation from cloned Qt Creator sources, but I 
failed for this! It displays some stupid error messages! Like this:

Because I got error earlier, I remove first commented line, but it not 
help:

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 1.
    /!-ściągnięte/qt-creator/doc$ qdoc -outputdir ../doc-ready
    -installdir ../doc-installed ./qtcreator.qdocconf -single-exec
 2.
    qdoc: error: Cannot open file
    'include(config/qtcreator-project.qdocconf)': No such file or directory
 3.
    Cannot open file 'include(config/qtcreator-project.qdocconf)': No
    such file or directory
 4.
 5.
    Aborting

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But I my next command:
Qt Code:
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 1.
    /!-ściągnięte/qt-creator/doc$ ls -l ./config/qtcreator-project.qdocconf
 2.
    -rw-rw-r-- 1 szyk szyk 2695 sie 1 22:50
    ./config/qtcreator-project.qdocconf

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So it seems qdoc produce nonsense error because file exists!
This is very anoying!!!
Please help me.

Thanks in advance and best regards
Szyk Cech
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