Local ICP ledger transfer test error?

[sea-snake]

You’re encoding the older hex ICP address format to bytes and then try to create a Principal from it. This will result in an invalid Principal (larger than 29 bytes, principals within Rust canisters like the ledger have a length limit check that’s currently missing in Motoko).

As I mentioned in your other forum post, you can’t send to this address format with the ICRC1 method. You’ll need to use the older transfer method or ask the user for his address in the newer ICRC1 format.

Questions about accountIdentifier and subaccount in ICPledger?

An ICP account hash is a one-way hash of account principal and a sub account. You can’t get the principal and sub account from this address. In comparison the newer ICRC1 address format is not a hash but a textual format that describes the principal and sub account. In this format you can still get the principal and sub account from the address. So for sending ICP to a non ICRC1 address (old hash format in hex) you can use the older transfer method instead of icrc1_transfer on the ledger canis…