I'm having a problem with the latest daily version of FreeCAD (0.19~pre2~202004221805~ubuntu18.04.1). When I try to insert a wall using the BIM workbench and with Working Plane Snap on, I get the following error message:
Traceback (most recent call last):
File "/usr/share/freecad-daily/Mod/Draft/draftguitools/gui_snapper.py", line 1350, in move
AttributeError: module 'FreeCAD' has no attribute 'Snapper'
Also, when I was using the daily build from two days ago and tried to use the Aliasing feature to set the length of a wall from the spreadsheet, this feature did not work. No matter what I entered in the spreadsheet, the length of the wall I placed did not change. I was able, however, to change the height of the wall from the spreadsheet. I apologize for not having the error message from my attempt. Thanks much for your help!