Errors

The NEO dAPI will provide these basic errors. It is up to the wallet provider to provide additional information if they choose:

Error Type	Meaning
NO_PROVIDER	Thrown when there is no interface capable of interacting with NEO blockchain
CONNECTION_DENIED	Thrown when API provider refuses to execute a transaction (e.g. trying to execute a transaction on an unavialable network)
RPC_ERROR	Thrown when a command relying on RPC connection to a network node fails
MALFORMED_INPUT	Thrown when an input such as the address is not a valid NEO address
CANCELED	Thrown when a user cancels, or refuses the dapps request
INSUFFICIENT_FUNDS	Thrown when the action does not have a sufficient balance
CHAIN_NOT_MATCH	The currently opened chain does not match the type of the call chain, please switch the chain
SCRIPT_ERROR	Script creation error, please check whether the parameters are correct
FAIL	The request failed