[g64-0.0.3] addons/g64-0.0.3/lua/autorun/client/g64_spawnmenu.lua:31: attempt to call field 'OpenFileDialog' (a nil value)
1. DoClick - addons/g64-0.0.3/lua/autorun/client/g64_spawnmenu.lua:31
2. unknown - lua/vgui/dlabel.lua:237

whenever i click the browse button this error comes up. and the entity wont work if i type it ive tried it. my rom is a .z64 file, i am asking for some help.