GPTIPS2 Error: Reference to non-existent field 'rangesize'.

Hi,

I'm currently using GPTIPS2 and came across an issue.

When I try to run gp = rungp(@configFile), I get the following error:

Reference to non-existent field 'rangesize'.

Error in treegen (line 45)

rangesize = gp.nodes.const.rangesize;

Error in initbuild (line 66)

temp = treegen(gp);

Error in rungpcode (line 103)

gp = initbuild(gp);

Error in GPrun (line 1)

gp = rungpcode(@configFile);

It seems like 'gp.nodes.const.rangesize' is not defined anywhere within GPTIPS2 documentation/functions.

Anyone know how to solve this? Am I missing something obvious like incorrectly adding the extracted files to the Matlab path?

Thanks!