Greetings, gentlemen!
I want to install Renderman24 and Octane_2021.1.0.4_Houdini_Win64_demo same time. I receive this message:
“Cannot determine preloaded icons for shelf: <hou.Shelf 'RenderMan24'>”

and my houdini.env file is

#
# Houdini Environment Settings
#
# The contents of this file are read into the environment
# at startup. They will override any existing entries in
# the environment.
#
# The syntax is one entry per line as follows:
# VAR = VALUE
#
# Values may be quoted
# VAR = "VALUE"
#
# Values may be empty
# VAR =
#

# Example:
#
# HOUDINI_NO_SPLASH = 1

RMANTREE="C:\Program Files\Pixar\RenderManProServer-24.2"
RFHTREE="C:\Program Files\Pixar\RenderManForHoudini-24.2"
RMAN_PROCEDURALPATH=$RFHTREE\19.0.383\openvdb;&
HOUDINI_PATH=$RFHTREE\19.0.383;&
PATH=$RMANTREE\bin;&


PATH="E:\Octane_2021.1.0.4_Houdini_Win64_demo\Octane_2021.1.0.4_Houdini_18.5.696_demo_Win64\bin;$PATH"
HOUDINI_PATH="E:\Octane_2021.1.0.4_Houdini_Win64_demo\Octane_2021.1.0.4_Houdini_18.5.696_demo_Win64;&"


HOUDINI_DSO_ERROR=2

I think somethings are wrong with the .env file.

I should be grateful if someone could help me with this problem.