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удалил прежнюю версию, поставил предложенную и запустилось.

но при попытке сохранить картинку:

content-type missing in HTTP POST, defaulting to application/x-www-form-urlencoded. Use QNetworkRequest::setHeader() to fix this problem.

content-type missing in HTTP POST, defaulting to application/x-www-form-urlencoded. Use QNetworkRequest::setHeader() to fix this problem.
QPainter::begin: Paint device returned engine == 0, type: 3
QPainter::setRenderHint: Painter must be active to set rendering hints
QPainter::setBrush: Painter not active
QPainter::setPen: Painter not active
QPainter::pen: Painter not active
QPainter::setPen: Painter not active
QPainter::setBrush: Painter not active
QPainter::end: Painter not active, aborted
content-type missing in HTTP POST, defaulting to application/x-www-form-urlencoded. Use QNetworkRequest::setHeader() to fix this problem.
QSqlQuery::value: not positioned on a valid record
Ошибка сегментирования (сделан дамп памяти)

что посоветуете?

и еще ctrl+PrtSc работает как-то через раз.