Improvement - Incorrect Smart Contract call Error Message

[chilligerchief]

When trying to execute the smart contract call as described in the documentation:

window.xpll.callContract({
    address: 'xXAbY4DmeOHHuRCmE9dXczV38BoO-CTKYeWra8YOlLw',
    method: "transfer_from",
    args: [
        { type: 'base64', value: 'YChzIE0ZGwKuuJSSVugZ-SlY3RvBzzjjz3__VkftgCY' },
        { type: 'base64', value: 'ggYKJ-RGIfs2YVzAW2W5KV39NpPSUIzabo7m0dSC_Hs' },
        { type: 'u64', value: '0.001' }
    ],
});

I get the following error:

script.js:6 Uncaught (in promise) XPLL - RPC Error: [
  {
    "code": "custom",
    "message": "Input not instance of Uint8Array",
    "fatal": true,
    "path": [
      0
    ]
  },
  {
    "code": "custom",
    "message": "Input not instance of Uint8Array",
    "fatal": true,
    "path": [
      1
    ]
  },
  {
    "code": "custom",
    "message": "Input not instance of Uint8Array",
    "fatal": true,
    "path": [
      2
    ]
  }
]
    at chrome-extension://gpfllmjckejjhmmdmgbgmclmhopekjpf/background/index.mjs:1:14639

It seems like the wallet exension does not manage to convert the parameters to uint8 arrays even though the type is correctly specified.

This makes it currently impossible to make smart contract calls with parameters at the moment (except when serializing the parameters yourself, which is a total pain).

@kayac-parallel-chain Again, this is most likely not an issue with the docs, but with the xperience wallet extension. I don't know where to report theses issues. Are there any plans on making this open source so I can properly report bugs and create pull requests for fixes?

[kayac-parallel-chain]

@chilligerchief thanks you for pointing out the issue,
This contract address only exists on Testnet.

When we execute the call contract method,
we will check if the contract is not the PRFC1 contract or not,
if the contract is not a PRFC1 contract,
it will rollback to the general call contract method,
which only accepts Uint8Array since we don't know the argument type of the contract.

[chilligerchief]

Thanks for the answer. Switching to testnet resolved the issue.
However, the error message is a bit misleading, is there any way to make the error message clearer?
I would have expected something like:

Smart Contract at address xXAbY4Dme... has no method transfer_from with parameters of type (base64, base64, u64)

Edit: I changed the title to reflect the actual issue.