No cache can be created if the route lookup fails. This may be a legitmate condition too.
Please check if there is any route present for the source in the routing table. If the route is expected to be there please check the unicast protocol being run, to debug the problem. Adding static route will also solve the problem.
Info
PIM-DM: Cache could not be created as route to the source, %ips% could not be found.\n
Name | Type |
---|---|
ips | IPaddrN |