Empty heterograph is not allowed.

[prathameshk]

When I am trying to load the pretrained graph then I get following error.

TxGNN.load_pretrained('./TxGNNExplorer')

dgl._ffi.base.DGLError: [14:31:29] /tmp/dgl_src/src/graph/heterograph.cc:120: Check failed: !rel_graphs.empty(): Empty heterograph is not allowed.
The same error appears when I am trying to initialize the model.

this could be due to mistmatching version of DGL.
I am on Mac M1. So I cant install 0.5.2 version of DGL.
pip install "dgl==0.5.2"
ERROR: Could not find a version that satisfies the requirement dgl==0.5.2 (from versions: 0.9.0, 0.9.1, 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.1.2, 1.1.2.post1, 1.1.3, 2.0.0, 2.1.0)
ERROR: No matching distribution found for dgl==0.5.2

It seems that 0.5.2 is also not present in https://data.dgl.ai/wheels/repo.html.

Is it possible to create a new release with latest version of DGL?

[michellemli]

I encountered the same error even with dgl==0.5.2. But I realized that I did not install a cuda version of PyTorch because this error was raised (I removed the try/except statement to figure out what error was being skipped):

AssertionError: Torch not compiled with CUDA enabled

Do you have a GPU on your system? If so, did you install the cuda or cpu version of PyTorch?

Another option to check whether this is actually your error is to set the device to cpu instead of cuda.

If this is not relevant to your error, maybe try removing the try/except statement to figure out what error is actually being skipped?

===== Edit =====

FYI, I still had problems with dgl==0.5.2 because it did not have cuda enabled. I managed to get the code in the README working with dgl==0.6.1 for cuda 10.2.