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Code

Description 

no_established_connection

The command failed because no reader is connected.

no_active_collect_payment_method_attempt

Development Code Reference: cancelCollectPaymentMethod can only be called when collectPaymentMethod is in progress.

no_active_read_reusable_card_attempt

Development Code Reference: cancelCollectReusableCard can only be called when readReusableCard is in progress.

canceled

The command was canceled.

cancelable_already_completed

Cancelation failed because the operation has already completed.

cancelable_already_canceled

Cancelation failed because the operation has already been canceled.

network_error

An unknown error occurred when communicating with the server or reader over the network. Refer to the error message for more information.

network_timeout

The request timed out when communicating with the server or reader over the network. Make sure both your device and the reader are connected to the network with stable connections.

already_connected

The connection attempt failed because a reader was already connected.

failed_fetch_connection_token

Development Code Reference: Failed to fetch a connection token. Make sure your connection token handler returns a promise that resolves to the connection token.

discovery_too_many_readers

Development Code Reference: discoverReaders returned too many readers. Use Locations to filter discovered readers by location.

invalid_reader_version

The reader is running an unsupported software version. Please reboot to allow the reader to update and try again.

reader_error

The reader returned an error while processing the request. Refer to the error message for more information.

command_already_in_progress

The action cannot be performed, because there is an in-progress action preventing it.