File _constraints of Package qgroundcontrol
<constraints> <hardware> <disk> <size unit="G">4</size> </disk> <physicalmemory> <size unit="G">4</size> </physicalmemory> </hardware> </constraints>
<constraints> <hardware> <disk> <size unit="G">4</size> </disk> <physicalmemory> <size unit="G">4</size> </physicalmemory> </hardware> </constraints>