No railroads in captured territories?

[stealth]

Greetings...
Quick question about building railroads in captured lands. For a while after I take over cities/land in another continent, I cannot get my workers to build railroads. Then it will allow it. Is there a prerequisite for this, say a harbor to your homeland or something ??

-Stealth

 

[sinenomine]

You likely need access to coal (maybe iron) in the new continent. Check one of your cities there to see what resources they have. If they are missing them, build a harbour (to trade with your home continent) or find local sources.