cant get Core and MCRainbow working

[CaelThunderwing]

built from latest SVN, Core v7 and mcrainbowr2 produce these errors on load,

[15:31:15] -- Plugins/Core/Core.lua:16: error in function 'new'.
argument #2 is '[no object]'; 'string' expected.

[15:31:15] Error in plugin Plugins/Core in file Plugins/Core/Core.lua
[15:31:15] ~cWebPlugin::cWebPlugin()
[15:31:15] cWebPlugin::cWebPlugin()
[15:31:15] -- Plugins/mcrainbowr2/mcrainbowr2.lua:12: error in function 'new'.
argument #2 is '[no object]'; 'string' expected.

[15:31:15] Error in plugin Plugins/mcrainbowr2 in file Plugins/mcrainbowr2/mcrainbowr2.lua


being run on for today an 256MB RaspberryPi, tomarrow my new 512MB Pi (it's due to arrive tomarrow by the end of the day)