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I'm just installed QGIS 2.2 and created a new plugin from Plugin Builder. When I try to compile the plugin using:

C:\Program Files\QGIS Valmiera\bin>pyuic4 -o C:\Program Files\QGIS Valmiera\bin\ myplugin\ui_myplugin.py C:\Program Files\QGIS Valmiera\bin\myplugin\ui_ myplugin.ui

I received the error message "Error: one input ui-file must be specified".

Someone could help me solve this issue? I'm running over Windows 8 OS.

Thanks, Mateus

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  • 1
    Could be an issue of spaces in the file paths
    – underdark
    Commented Mar 20, 2014 at 20:10
  • It's definitely an issue with spaces: you need to quote the file names. There also might be a typo: the last "_" is followed by a space which you probably do not want to be there.
    – whuber
    Commented Mar 20, 2014 at 20:42

4 Answers 4

Reset to default
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Open cmd and go to the folder "myplugin" (with comand "cd").

Then run:

pyuic4 -o ui_myplugin.py ui_myplugin.ui
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  • Hello and thanks for your help. Unfortunately I tried this before and I receive the error message: "'pyuic4' is not recognized as an internal or external command, operable program or batch file.". To solve this issue I must run pyuic4 from the folder "C:\Program Files\QGIS Valmiera\bin"
    – mbonad
    Commented Mar 21, 2014 at 18:35
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    You could also run it as "C:\Program Files\QGIS Valmiera\bin\pyuic4"
    – BradHards
    Commented Mar 21, 2014 at 22:34
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As suggested by underdark and whuber, the white-space characters matter.

whuber pointed out that you probably have a typo in the ui_ myplugin.ui name, which should be ui_myplugin.ui. If so, you also have extra space in the bin\ myplugin in the first file path parameter. That should be bin\myplugin

There is a more general issue in that "Program Files" and "QGIS Valmiera" have spaces, so what you end up with (from the perspective of pyuic) is an output file of "C:Program", and extra arguments of "Files\QGIS", "Valmiera\bin\", "myplugin\ui_myplugin.py", "C:\Program, "Files\QGIS", "Valmiera\bin\myplugin\ui_" and "myplugin.ui". Each space delimits arguments.

So you should probably use:

pyuic4 -o "C:\Program Files\QGIS Valmiera\bin\myplugin\ui_myplugin.py" "C:\Program Files\QGIS Valmiera\bin\myplugin\ui_myplugin.ui"

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  • Hello Brad and thanks for your help. You're right. I solve the issue adding "" as you described. Thanks!!! However, now I receive another error message: "Error: Permission denied: "C:\Program Files\QGIS Valmiera\bin\myplugin\ui_myplugin.py". I believe this is because windows don't allow me to write in this folder. Do you know how to solve this? Thanks.
    – mbonad
    Commented Mar 21, 2014 at 18:38
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  1. Open OSGeo4W Shell from Start Menu/Screen, it should be installed.

  2. Use change directory command cd

    cd "C:\Program Files\QGIS Valmiera\bin\myplugin\"

  3. Execute command without paths

    pyuic4 -o ui_myplugin.py ui_myplugin.ui

I think calling it directly on windows confuses things because pyuic4 is actually a batch file that executes some python script and somewhere along the lines the paths get lost. Seems easier to let the OSGeo4W shell handle things.

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I've ran in the same problem with the current QGIS 2.6.1 by just typing make I had the same error. I've searched for the pyuic4.bat file and it was located correctly. SO I just used the absolute path in the OSGEO4W Shell:

C:\Users\ricckli\.qgis2\python\plugins\qgis2leaf>make
pyuic4 -o ui_qgis2leaf.py ui_qgis2leaf.ui
make: pyuic4: Command not found
make: *** [ui_qgis2leaf.py] Error 127

This one was working without a problem:

C:\Users\ricckli\.qgis2\python\plugins\qgis2leaf>C:\OSGeo4W64\bin\pyuic4 -o ui_q
gis2leaf.py ui_qgis2leaf.ui
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