Cannot find font directory /usr/local/Qt-5.9.2/lib/fonts

[neda]

Hi,
I have this error when compile simple Qt application:

QFontDatabase: Cannot find font directory /usr/local/Qt-5.9.2/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.

QFontDatabase: Cannot find font directory /usr/local/Qt-5.9.2/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.

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Note: I install Qt 5.9.2 in Raspberry Pi3 (Raspbian).