Problem

This error appears if I try to use the Place Space command:

Solution

This error could be due to the Item Main Callout not having a Space Label defined under the Cell heading.  Try the following:

• From the top menu select Building Designer > Annotate Tool Settings > DataGroup Annotation > Space:

•  Click under the Cell heading and the cell selection window will open.

If the issue persists, try regenerating your local \prefs files, following the steps below:

     1. Close Aecosim Building Designer.

     2. Use Windows Explorer to browse to your \prefs folder, by default found under:

         C:\Users\your.name\AppData\Local\Bentley\AECOsimBuildingDesigner\8.11\xxxxxxxx\. 
         NOTE: This location is defined by the configuration variable TFDIR_PREFS.

     3. Rename the \prefs folder to "\prefs123" or similar.

     4. Restart Aecosim Building Designer.