load_graph() returns empty graph

[catalina17]

I used the load_graph() method from House3DUtils to load a previously computed graph (the file path was valid), but self.graph was empty after the following lines:

EmbodiedQA/utils/house3d.py

Lines 272 to 273 in 9113156

	self.graph = Graph()
	self.graph.load(path)

Not sure if anyone else has had this issue; in any case, the following code worked for me:

import pickle
g = pickle.load(open(path, 'rb'))
from dijkstar import Graph
self.graph = Graph(g)

[ZhuFengdaaa]

May I ask which file you loaded ? or not working on all files ?

[catalina17]

So the first call to __init__ generated a .pkl file, with build_graph=True, and the shortest path computation worked. The 2nd time I created a House3DUtils object using the same path for loading the .pkl file, self.graph contained an empty graph; more precisely, this returns an empty graph.