Error while running the test script

I have installed carla 0.9.9 from source and also downloaded scenario runner 0.9.9 on Ubuntu 18.04.
After following all the steps mentioned in the doc, I ran the script.
python --scenario FollowLeadingVehicle_1 --reloadWorld.

It is showing a time out error. How to give a port number while launching carla?
Also quite recently I’m getting an error while doing make launch. Extracting boost for Python 3.

gzip: stdin: unexpected end of file
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now
Util/BuildTools/ recipe for target ‘setup’ failed
make: *** [setup] Error 2

I did not get this error previously. Please provide info on this error too.