OpenCPN not starting

[steel_cruiser]

Start from scratch deleting the folder /home/pi/.opencpn and type opencpn in terminal to start.
If nothing happens uninstall opencpn and install again:
sudo apt autoremove opencpn
sudo apt install opencpn

Thanks for the advice. I tried deleting the .opencpn and manually start opencpen. The same error messages appeared as mentioned in my original post.

Then I did autoremove opencpn - no problems. When I tried 'sudo apt install opencpn' I got the following:

 pi@openplotter:~ $ sudo apt install opencpn
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:
 opencpn : Depends: opencpn-tcdata but it is not installable
           Recommends: xcalib but it is not going to be installed
           Recommends: opencpn-doc but it is not going to be installed
           Recommends: opencpn-gshhs-intermediate but it is not going to be installed
           Recommends: opencpn-gshhs-high but it is not going to be installed
           Recommends: opencpn-gshhs-full but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
pi@openplotter:~ $ 


Any suggestions?