Simple Baker: Error: "Cook error in input: base_image" on composite node "render_plane"

[jj-fx]

This is the error log:

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "opdef:/gamedev::Sop/sop_simple_baker::2.0?PythonModule", line 6, in render File "/opt/hfs17.5.293/houdini/python2.7libs/houpythonportion/ui.py", line 850, in decorator return func(*args, **kwargs) File "/opt/hfs17.5.293/houdini/python2.7libs/hou.py", line 51187, in render return _hou.RopNode_render(*args, **kwargs) OperationFailed: The attempted operation failed. Error: Error rendering child: /obj/Modelling/sop_simple_baker1/ropnet1/rop_games_baker/render_plane Error rendering child: /obj/Modelling/sop_simple_baker1/ropnet1/rop_games_baker/render_plane Error rendering child: /obj/Modelling/sop_simple_baker1/ropnet1/rop_games_baker/render_plane Error rendering child: /obj/Modelling/sop_simple_baker1/ropnet1/rop_games_baker/render_plane

Im using latest 17.5.293. Game Toolset ver 1.184, but also tried on 1.173 and 1.163. All having same problem