If I start FreeCAD and switch to the Arch WB I get the following text message in report view
freecad locationCould not open
/data/Mod/Arch/Presets/profiles.csv
Arch workbench activated
OS: Ubuntu 12.04.5 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6205 (Git)
Build type: Debug
Branch: master
Hash: 89cb2479232ea949b368e849d90fd6ce563154c1
Python version: 2.7.3
Qt version: 4.8.2
Coin version: 3.1.3
OCC version: 6.9.1.oce-0.18-dev