I'm trying to use GMRoomPack with my first project using the export to JSON method.  The export seemed to go fine.  Now I'm trying to load the room into another room of my project using

room_pack_load_file("C:/Users/Joiey/Documents/GameMakerStudio2/Santa Run/datafiles/sect1.json", 0, 0);

Then when I try and run my project I'm getting the following error message.

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FATAL ERROR in
action number 1
of PreCreate Event
for object obj_game_controller:
Cannot load buffer file C:/Users/Joiey/Documents/GameMakerStudio2/Santa Run/datafiles/sect1.json
 at gml_Script_room_pack_load_file (line 10) - var l_buf=buffer_load(l_path1);
############################################################################################
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stack frame is
gml_Script_room_pack_load_file (line 10)
called from - gml_Room_room0_Create (line 1) - room_pack_load_file("C:/Users/Joiey/Documents/GameMakerStudio2/Santa Run/datafiles/sect1.json", 0, 0);