Hi Fredo, per your request here is the post about the conflict I was having between D5 Renderer and LordOfTheToolbars.
Error: Is a directory @ rb_sysopen - .../plugins/d5_converter
The Cause:
LordOfTheToolbars was scanning all plugins to build its toolbar menu. When it encountered the d5_converter folder, it tried to open it as a file to read/copy it, but it's a directory, not a file. This happened in the ghost_command_register function.
The Analysis:
The D5 Converter structure is standard (a .rb loader file + a subfolder with extension code)
Nothing weird about D5's structure
LordOfTheToolbars wasn't properly checking if something is a directory before trying to open/copy it
Summary:
The extension causing the conflict is LordOfTheToolbars. It's failing when scanning the plugins folder because it tries to open the d5_converter directory as if it were a file (using rb_sysopen), triggering the "Is a directory" error. The fix would be adding a directory check before attempting to open/copy files in the ghost_command_register function.