TensorFlow KeyError: Operation Not Found in Graph - 'teller/embedding/Variable/Read/Identity'

This error message indicates that the operation 'teller/embedding/Variable/Read/Identity' is not present in your TensorFlow graph. This could stem from several issues:

• Graph Problem: There might be a problem with how your graph is defined or constructed.
• Missing Operation: The operation might not have been added to the graph correctly.
• Incorrect Name: The name 'teller/embedding/Variable/Read/Identity' could be incorrect.

Troubleshooting Steps

1. Inspect the Graph Construction: Carefully review the code that builds your TensorFlow graph. Make sure that the 'teller/embedding/Variable/Read/Identity' operation is added correctly and is part of the graph you're working with.

2. Verify Operation Name: Double-check the name of the operation. Ensure it matches the exact name used when adding it to the graph. Typos can be a common source of errors.

3. Check for Dependencies: If the 'teller/embedding/Variable/Read/Identity' operation depends on other operations, confirm that these dependencies are also correctly added to the graph.

4. Print Graph Structure: You can print the structure of your graph using tf.print(graph.as_graph_def()). This can help you visually inspect the operations present in your graph.

5. Debug with a TensorFlow Debugger: For more advanced troubleshooting, consider using the TensorFlow Debugger (tfdbg) to step through your code and inspect the state of your graph and operations.