netket.errors

Netket has the following classes of errors.

Error classes

HilbertIndexingDuringTracingError	Illegal attempt to use state indexing function from inside of a Jax function transformation.
HolomorphicUndeclaredWarning	Complex-to-Complex model detected.
InsufficientSamplesForSRWarning	Warning issued when using Stochastic Reconfiguration (SR) with insufficient samples.
JaxOperatorSetupDuringTracingError	Illegal attempt to use a Jax-operator Numba-operators constructed inside of a Jax function transformation with non-constant data.
JaxOperatorNotConvertibleToNumba	Illegal attempt to convert to the Numba format a Jax operator that had been flattened and unflattened.
JaxOperatorGetConnInJitError	Illegal attempt to use get_conn_flattened() or similar methods inside of a Jax function transformation with a Jax operator.
NonHolomorphicQGTOnTheFlyDenseRepresentationError	QGTOnTheFly cannot be converted to a dense matrix for non-holomorphic functions which have complex parameters.
NumbaOperatorGetConnDuringTracingError	Illegal attempt to use Numba-operators inside of a Jax function transformation.
OperatorMultiplicationDeprecationWarning	Warning issued when using deprecated A*B syntax for operator multiplication.
RealQGTComplexDomainError	This error is raised when you apply the Quantum Geometric Tensor of a
UnoptimalSRtWarning	SRt should be used when the number of parameters exceed the number of samples.
SymmModuleInvalidInputShape	This error when you attempt to use a module with an input having a wrong number of dimensions.
ParameterMismatchError	Error thrown when the structure of the parameters does not match the expected structure.
MCMixedStateExpectAndGradOnPhysicalOperatorError	Error raised when calling netket.vqs.MCMixedState.expect_and_grad() with a physical operator instead of a superoperator.
InitializePeriodicLatticeOnSmallLatticeWarning	Warning thrown when attempting to create a periodic lattice on a lattice with less than two sites in one direction.
NNXModuleToSamplerInput	Error thrown when attempting to use a sampler with a bare NNX module.

Hilbert space errors

Errors arising when working with Hilbert spaces and their constraints:

UnoptimisedCustomConstraintRandomStateMethodWarning	Warning thrown when calling random_state on a Hilbert space with a custom constraint.
UnhashableConstraintError	Error thrown when a constraint is not a fully static pytree, and it cannot be hashed.
InvalidConstraintInterface	Error thrown when a constraint for an Homogeneous Hilbert space does not conform to the expected interface.

PyTree errors

NetKetPyTreeUndeclaredAttributeAssignmentError

Error thrown when trying to assign an undeclared attribute to a NetKet-style Pytree.

Driver update warnings

LogAdditionalDataSignatureDeprecationWarning	Warning issued when a driver subclass overrides _log_additional_data with the old two-argument signature (self, log_dict, step) instead of the current one-argument signature (self, log_dict).
DriverResetDeprecationWarning	Warning issued when calling the deprecated reset() method on a driver.
ForwardAndBackwardDeprecationWarning	Warning issued when a driver subclass overrides the deprecated _forward_and_backward method instead of the renamed compute_loss_and_update.