While installing sdk this error appears:
ubuntu-sdk : Depends: qt5-default but it is not going to be installed
Recommends: libqt5webkit5-qmlwebkitplugin but it is not going to be installed
Recommends: qtdeclarative5-particles-plugin but it is not going to be installed
Recommends: qtdeclarative5-qtaudioengine-plugin but it is not going to be installed
E: Unable to correct problems, you have held broken packages.