What means this error?

Developers
15

Hi @Tobarrientos2 and @paulous,

The fix PR on the dfx side has been merged. The next dfx release (expected in the week of March 4th) will include this fix.

I also came up with a workaround that will unblock you even without the fixed dfx deps.

Step 1

Declare internet-identity as a pull type canister in dfx.json.

{
  "canisters": {
    "ii": {
      "type": "pull",
      "id": "rdmx6-jaaaa-aaaaa-aaadq-cai"
    }
  }
}

Step 2

Run dfx deps pull:

$ Fetching dependencies of canister rdmx6-jaaaa-aaaaa-aaadq-cai...
Found 1 dependencies:
rdmx6-jaaaa-aaaaa-aaadq-cai
Pulling canister rdmx6-jaaaa-aaaaa-aaadq-cai...
WARN: Canister rdmx6-jaaaa-aaaaa-aaadq-cai has different hash between on chain and download.
on chain: a3b50a3b35c487b9e5e9cd0174845d83fe15d5bb5d78e507647ed2272777568f
download: 197d0423178a6ae2785c924b962648e2b47e6ccb2a25e98d9220d9f3ce5eebf7

Step 3

Replace the “wasm_hash” field in deps/pulled.json with the download hash you see above.

{
  "canisters": {
    "rdmx6-jaaaa-aaaaa-aaadq-cai": {
      "name": "ii",
      "wasm_hash": "197d0423178a6ae2785c924b962648e2b47e6ccb2a25e98d9220d9f3ce5eebf7",
      "init_guide": "Use '(null)' for sensible defaults. See the candid interface for more details.",
      "init_arg": null,
      "candid_args": "(opt InternetIdentityInit)",
      "gzip": true
    }
  }
}

Step 4

The following dfx deps init/deploy will work.

$ dfx deps init
Canister rdmx6-jaaaa-aaaaa-aaadq-cai (ii) set init argument with "(null)".

$ dfx start --clean --background
...

$ dfx deps deploy
Installing canister: rdmx6-jaaaa-aaaaa-aaadq-cai (ii)

$ dfx canister call ii captcha_create
(
  variant {
    Ok = record {
      png_base64 = "...";
      challenge_key = "...";
    }
  },
)
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