# Trouble installing a script file of an addon (threejs export)

I placed the threejs script export_threejs.py in %appdata%\Blender Foundation\Blender\2.71\scripts\addons, but it does not show up in the addons list in User Preferences.

When I try to install manually nothing happens.

• I keep getting this error "fake_module: addon missing 'bl_info' gives bad performance!:". I have tried it with the latest versions of Blender as well as version 2.65. In both I get the error, and the Threejs export import option is not visible. Any ideas on how to fix this? It seems other people are having the same issue...
– user8424
Dec 9 '14 at 20:42

export_threejs.py is only part of an addon, you need all of files or it won't work.
A __init__.py is crucial, because it contains the bl_info dict to make it a Blender addon, and it loads the other files.
In your ...\scripts\addons\ folder, there needs to be a subfolder (e.g. called io_mesh_threejs) with all 3 files of the addon inside.
In order to use Blender's Addon Install from file... feature for addons with multiple files, the mentioned folder with the scripts (io_mesh_threejs) needs to be zipped and you select that zip-file.