$ ./waf
[ 1/39] * ts2qm : guitone/res/i18n/guitone_de.ts -> _build_/guitone/res/i18n/guitone_de.qm
Updating 'default/guitone/res/i18n/guitone_de.qm'...
    Generated 177 translations (177 finished and 0 unfinished)
[ 2/39] * rcc : guitone/res/guitone.qrc -> _build_/guitone/res/guitone_rc.cpp
RCC: Error: Cannot find file 'i18n/guitone_de.qm'
Compilation failed