Hi Dion,
I was following your recent video "Create drawings" and it showed this error message when I clicked the "Add drawing" button. This happened while using Blender 2.9

Then I tried this using 2.83. It worked but the door was not showing properly in the svg file.

I am sending the files attached.
Thanks!
confirmed.
Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3842, in execute
bpy.ops.bim.activate_drawing_style()
File "C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py", line 201, in __call__
ret = op_call(self.idname_py(), None, kw)
RuntimeError: Error: Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3729, in execute
self.set_raster_style()
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3738, in set_raster_style
bpy.context.scene.render.film_transparent = style['bpy.context.scene.render.film_transparent']
KeyError: 'bpy.context.scene.render.film_transparent'
location: C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py:201
location: <unknown location>:-1
Yeah basically in the last release, I added support for drawing styles to remember output transparency. Since you were using the feature prior to that release, it wasn't storing that information. Such is the nature of alpha software when adding features whilst people are using it :) I suspect new files with the new release would not have this problem.
Try clicking on your drawing style and pressing save drawing style, which should now store the transparency data, that _should_ fix it.

Oh, as for the missing door, in the older version of the add-on, it had some bugs in exporting 2D and also didn't enable the 2D export by default (i.e. the plan representation was disabled in the scene properties tab). I wouldn't worry too much about it - the new version should have it all fixed.
Not sure that's it.
I created a new file, and still got some errors...
Video:https://www.dropbox.com/s/i3stckb0vmnl9ly/2020-09-20_09-16-33.mp4?dl=0
Might be related to #1006, as well.
@theoryshaw I still think that's the reason - the issue is that the add-on remembers settings, so even in a fresh file, upon startup, it's still applying the old settings. Try this: File > Defaults > Load Factory Settings. Then, once that's done, I forget if it's as simple as restarting Blender (i.e. Blender simply remembers your new add-on version settings from then on) or you need to re-enable the add-on and and save new defaults.
Give it a shot, happy to catch me online on ##architect for a screenshare to get it sorted too! And sorry for the pain :(
still got the following after 'loading factory settings' and re-enabling plugins...
Version: 0.0.200912
bpy.ops.mesh.add_wall(align='WORLD', location=(0, 0, 0), rotation=(0, 0, 0))
bpy.ops.outliner.collection_drop()
Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3842, in execute
bpy.ops.bim.activate_drawing_style()
File "C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py", line 201, in __call__
ret = op_call(self.idname_py(), None, kw)
RuntimeError: Error: Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3729, in execute
self.set_raster_style()
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3738, in set_raster_style
bpy.context.scene.render.film_transparent = style['bpy.context.scene.render.film_transparent']
KeyError: 'bpy.context.scene.render.film_transparent'
location: C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py:201
location: <unknown location>:-1
bpy.context.space_data.context = 'DATA'
bpy.context.object.data.BIMCameraProperties.active_drawing_style_index = 2
Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3729, in execute
self.set_raster_style()
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3738, in set_raster_style
bpy.context.scene.render.film_transparent = style['bpy.context.scene.render.film_transparent']
KeyError: 'bpy.context.scene.render.film_transparent'
location: <unknown location>:-1
Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 2121, in execute
bpy.ops.bim.activate_view(drawing_index=bpy.context.scene.DocProperties.drawings.find(camera.name.split('/')[1]))
File "C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py", line 201, in __call__
ret = op_call(self.idname_py(), None, kw)
RuntimeError: Error: Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 2397, in execute
bpy.ops.bim.activate_drawing_style()
File "C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py", line 201, in __call__
ret = op_call(self.idname_py(), None, kw)
RuntimeError: Error: Traceback (most recent call last):
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3729, in execute
self.set_raster_style()
File "C:\Users\ryan\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\blenderbim\bim\operator.py", line 3738, in set_raster_style
bpy.context.scene.render.film_transparent = style['bpy.context.scene.render.film_transparent']
KeyError: 'bpy.context.scene.render.film_transparent'
location: C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py:201
location: C:\Program Files\Blender Foundation\Blender 2.90\2.90\scripts\modules\bpy\ops.py:201
location: <unknown location>:-1
This bug is now fixed. The film_transparent issue is due to remembering settings from the old version of the add-on. Simply delete all drawing styles and then reload your file, ensuring that you have a fresh factory settings loaded - reloading will prompt it to regenerate the default drawing styles, thus fixing the issue.

Most helpful comment
This bug is now fixed. The
film_transparentissue is due to remembering settings from the old version of the add-on. Simply delete all drawing styles and then reload your file, ensuring that you have a fresh factory settings loaded - reloading will prompt it to regenerate the default drawing styles, thus fixing the issue.