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Editorial Team
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Asked: 2026-06-10T15:17:24+00:00

When I put in my .pro file INSTALLS += INSTALL INSTALL.files += install/** INSTALL.path

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When I put in my .pro file

INSTALLS += INSTALL
INSTALL.files += install/**
INSTALL.path = bin

The jom.exe install command tries to copy the files using absolute paths

copy /y c:\Some Project\install\QtGui4.dll c:\Some Project\bin

this fails with

The number of parameters is invalid

A better command would be quoting the paths

copy /y "c:\Some Project\install\QtGui4.dll" "c:\Some Project\bin"

which succedes. How to make jom.exe quote the absolute paths or to use relative paths instead?

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1 Answer

  1. Editorial Team

    QMake doesn’t handle spaces in paths very well. Sooner or later one always runs into issues when using a source or build directory with spaces in it. In my experience, fighting those issues is futile. I strongly suggest QMake users to put all source code into a path without spaces.

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