Warning (10335): Unrecognized synthesis attribute "template" at...

It is just a warning not an error. The synthesis process will ignore this "template" directive then this on is not supported by Quartus.

Here you can find a list of supported synthesis directives:

verilog hdl synthesis attributes and directives (http://quartushelp.altera.com/11.1/mergedprojects/hdl/vlog/vlog_file_dir.htm)

The only way to get rid of the warning is to remove the line with this unknown synthesis directive in your code.