Lyx 2.2.3 AEA Template Error - 'Here definitely' does not work

Begging for any kind of help. I am working on a paper in Lyx by using AEA template after I loaded unavailable class with following link (https://wiki.lyx.org/Examples/AEA)

All others are fine, but only problem occurs when I try to hold image by using an option "Here definitely". Error messages are following:

And here is my preamble

\usepackage[abbr]{harvard}
\usepackage{dcolumn}
\draftSpacing{1.5}


I have no idea what's going on my Lyx. If I turn off the here definitely option, it works fine but all images and tables would be messy. FYI, I use windows 10 and lyx 2.2.3, very recent version. I appreciate any advice!

The problem is with the definition of the figure and table environments in AEA.cls I think. I can't explain exactly why the problem occurs, but I can suggest a fix:

Open AEA.cls in your favourite text editor, and go to lines 1203-04. Modify these lines from

           {\@float{figure}[#1]\begin{center}}
{\end{center}\end@float}


to

           {\@float{figure}[#1]\centering}
{\end@float}


I.e. change \begin{center} to \centering and remove \end{center}. Do the same modification for lines 1206-07, 1210-11, 1220-21, 1223-24 and 1227-28.

• @floater No worries. You might consider accepting the answer by clicking the checkmark on the left. – Torbjørn T. Dec 15 '17 at 17:18
• My apology. It's my first time to post here. Anyway thanks!!! – floater Dec 16 '17 at 0:44
• @floater thanks for accepting the answer. Note that you can also "upvote" (click on the up arrow) if you found the answer useful. – scottkosty Dec 17 '17 at 16:25
• @TorbjørnT. I'm planning to propose that we put a LyX note in the template file by the table float that we include, along the lines of "If you select <<Here definitely>>, you may need a workaround suggested at <<link to this answer>>". Let me know if you suggest any other details to add. – scottkosty Dec 17 '17 at 16:34
• @scottkosty (You need 15 rep points to upvote.) Don't have any other suggestions at the moment. – Torbjørn T. Dec 17 '17 at 16:41