Ugly error message when rejecting transation on ledger

[whyrusleeping]

If i attempt to sign a transaction with my ledger, but then decide to reject when reviewing it on the device, i get a not great error message:

why@sirius ~/c/lotus (master)> ./lotus send --from=f1LEDGER f1MYBANK 0.01

ERROR: failed to sign message: [APDU_CODE_COMMAND_NOT_ALLOWED] Command not allowed (no current EF)

[rjan90]

Reproduced this error message, and it seems like this error messages comes from the Ledger Filecoin app. I have asked in Zondax/ledger-filecoin#108 if it would be possible to change the error message to something more describing.

[Kubuxu]

We could also handle it better on our side. IMO the Zondax Ledger API itself doesn't need to provide better error messages.