Calling deployProxy on an Upgradeable ERC-721 in truffle tests throwing error

Support Upgrades
1

Hi,

I’m trying to test my upgradeable contract, using the @openzeppelin/truffle-upgrades library.
For that I’ve create a test block, but when I try to use deployProxy, I get this error:

  1) Contract: TestCollection
       "before all" hook in "Contract: TestCollection":
     TypeError: Cannot use 'in' operator to search for 'sendAsync' in undefined
      at Object.wrapProvider (node_modules/@openzeppelin/truffle-upgrades/src/utils/wrap-provider.ts:9:33)
      at deployProxy (node_modules/@openzeppelin/truffle-upgrades/src/deploy-proxy.ts:34:20)
      at Context.<anonymous> (test/TestCollection.js:23:28)

:computer: Environment

{
  "name": "hardhat-project",
  "devDependencies": {
    "@nomiclabs/hardhat-ethers": "^2.0.2",
    "@nomiclabs/hardhat-waffle": "^2.0.1",
    "@nomiclabs/hardhat-web3": "^2.0.0",
    "@openzeppelin/hardhat-upgrades": "^1.10.0",
    "@openzeppelin/truffle-upgrades": "^1.9.1",
    "chai": "^4.3.4",
    "ethereum-waffle": "^3.4.0",
    "ethers": "^5.4.7",
    "hardhat": "^2.6.6"
  },
  "dependencies": {
    "@nomiclabs/hardhat-truffle5": "^2.0.2",
    "@openzeppelin/contracts-upgradeable": "^4.3.2"
  }
}

:1234: Code to reproduce
The reproducible code is here

const { artifacts } = require("hardhat");
const { deployProxy } = require('@openzeppelin/truffle-upgrades');

const TestCollection = artifacts.require(
  "../artifacts/contracts/TestCollection.sol"
);

contract("TestCollection", (accounts) => {
  const URI_BASE = 'https://api.oncurio.com';
  const CONTRACT_URI = `${URI_BASE}/collections/test/`;
  let testCollection;

  const owner = accounts[0];
  const firstUser = accounts[1];
  const secondUser = accounts[2];
  const thirdUser = accounts[3];
  const [deployer] = accounts;

  before(async () => {
    testCollection = await deployProxy(TestCollection, ["TestCollection", "TST", "0xf57b2c51ded3a29e6891aba85459d600256cf317"], { deployer });
  });
2

This is related to your Truffle config. Can you share that? Make sure to delete any private keys that could be contained in it.