Copy to path button is broken

[MaximumFX]

Copy path to clipboard button is broken in Solaris

Traceback (most recent call last):
  File "Lop/sgtk_ris/copyPathToClipboard", line 1, in <module>
  File "Lop/sgtk_ris, PythonModule", line 27, in copy_to_clipboard
  File "D:\Developer\Pipeline\tk-houdini-renderman\app.py", line 76, in copy_to_clipboard
    self.handler.copy_to_clipboard(node, network)
  File "D:\Developer\Pipeline\tk-houdini-renderman\python\tk_houdini_renderman\handler.py", line 140, in copy_to_clipboard
    render_path = node.parm(parameter).eval()
AttributeError: 'NoneType' object has no attribute 'eval'