**System Information**
iMac (21.5-inch, Mid 2011)
AMD Radeon HD 6750M 512 MB
OS X El Capitan 10.11.2 (15C50)
**Blender Version**
Version 2.76 (2.76, 2015-Oct-11, Blender
Error Message:
Traceback (most recent call last):
File "/Applications/blender.app/Contents/Resources/2.76/scripts/addons/io_import_images_as_planes.py", line 320, in execute
self.import_images(context)
File "/Applications/blender.app/Contents/Resources/2.76/scripts/addons/io_import_images_as_planes.py", line 347, in import_images
self.align_planes(planes)
File "/Applications/blender.app/Contents/Resources/2.76/scripts/addons/io_import_images_as_planes.py", line 397, in align_planes
offset = (planes[0].dimensions.x / 2.0) + gap
IndexError: tuple index out of range
location: <unknown location>:-1
**Exact steps for others to reproduce the error**
Based on a (as simple as possible) attached .blend file with minimum amount of steps