Input 0 is incompatible with layer model

[passermyh]

Thanks for your work!
I met this problem:
Traceback (most recent call last):
File "main.py", line 58, in
gcn_model.train(args.batch_size, max_epochs=args.max_epoch, start_valid=args.start_valid, eval_freq=args.eval_freq)
File "/hy-tmp/AliNet/code/alinet.py", line 344, in train
self.input_embeds, self.output_embeds_list = self.model((self.pos_link_batch, self.neg_link_batch),
File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/keras/engine/base_layer.py", line 998, in call
input_spec.assert_input_compatibility(self.input_spec, inputs, self.name)
File "/usr/local/lib/python3.8/dist-packages/tensorflow/python/keras/engine/input_spec.py", line 271, in assert_input_compatibility
raise ValueError('Input ' + str(input_index) +
ValueError: Input 0 is incompatible with layer model: expected shape=(None, 2), found shape=(4500, 3)

What should I do?