I had tried to install LibraCAD from Ubuntu software center but fail. Then I tried using terminal command, and the below show:
tay@tay-Presario-CQ45-Notebook-PC:~$ sudo apt-get install librecad
[sudo] password for tay:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
librecad : Depends: libqt4-help (>= 4:4.5.3) but it is not going to be installed
Depends: libqt4-qt3support (>= 4:4.5.3) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
tay@tay-Presario-CQ45-Notebook-PC:~$
Please help to provide solution. thank you.