invalid signer or provider

[Alisonsilva47]

Hello, I'm trying to use a custom provider, but when I test it always gives me this error:

  reason: 'invalid signer or provider',
  code: 'INVALID_ARGUMENT',
  argument: 'signerOrProvider',
  value: '*my_provedor*'

To clear up the doubt, I tried to use information from Mainnet using infura, but the same error continued.

Can anybody help me?

Code:

var par1 = new sdk_1.Token(1, "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2", 18);
        var par2 = new sdk_1.Token(1, "0xdac17f958d2ee523a2206206994597c13d831ec7", 6);
        var pair = [await sdk_1.Fetcher.fetchPairData(par1, par2, "xxx")];
        const route = new sdk_1.Route(pair, par2);
        var amountPrecision = Math.round(quant * (10 ** 6));
        const trade = new sdk_1.Trade(route, new sdk_1.TokenAmount(par2, amountPrecision), sdk_1.TradeType.EXACT_INPUT);
        var exec = [trade.executionPrice.toSignificant(6), trade.executionPrice.invert().toSignificant(6)];
        if ((isNaN(exec[0]) || isNaN(exec[1]))) throw 'ERRO 2001';
        return exec;

[moodysalem]

Fetcher has been removed from this repository see #39 (comment)