E0109: delay array length mismatch
What happened
A Dense layer with delays enabled has a delay array whose length does not equal in_features × out_features. The delay array must have exactly one entry per connection.
Why
The delay array is corrupt in the Graph IR. This should not occur if the model was built with snn.Dense(..., delays=True) using a current version of the Python SDK. If it does occur, there is a serialization bug.
How to fix
- Recompile the model from Python:
thx.compile(model, "model.thx").
- If the error persists across fresh compilations, file a bug report — this indicates a serialization bug in the Python SDK.
Example
