.eslintrs.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": [
    "plugin:react/recommended",
    "airbnb",
    "plugin:@typescript-eslint/recommended",
    "prettier/@typescript-eslint",
    "plugin:prettier/recommended"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": [
    "react",
    "@typescript-eslint",
    "react-hooks",
    "prettier"
  ],
  "rules": {
    "no-unused-expressions": "off",
    "@typescript-eslint/no-unused-expressions": "off",
    "react-hooks/rules-of-hooks": "error",
    "react/jsx-props-no-spreading": "off",
    "react/prop-types": "off",
    "react-hooks/exhaustive-deps": "warn",
    "react/jsx-filename-extension": [
      1,
      {
        "extensions": [
          ".tsx"
        ]
      }
    ],
    "import/prefer-default-export": "off",
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "ts": "never",
        "tsx": "never"
      }
    ],
    "no-use-before-define": "off",
    "prettier/prettier": "error"
  },
  "settings": {
    "import/resolver": {
      "typescript": {}
    }
  }
}

index.tsx

import React, { useCallback, useRef } from 'react';
import { FiArrowLeft, FiMail, FiLock, FiUser } from 'react-icons/fi';
import { FormHandles } from '@unform/core';
import { Form } from '@unform/web';
import * as Yup from 'yup';

import logo from '../../assets/logo.svg';

import Input from '../../components/Input/index';
import Button from '../../components/Button/index';

import { Container, Content, Background } from './styles';

const SignUp: React.FC = () => {
  const formRef = useRef<FormHandles>(null);

  console.log(formRef);

  const handleSubmit = useCallback(async (data: object) => {
    try {
      const schema = Yup.object().shape({
        name: Yup.string().required('Nome obrigatório'),
        email: Yup.string()
          .required('E-mail obrigatório')
          .email('Digite um e-mail válido'),
        password: Yup.string().min(6, 'No mínimo 6 digitos'),
      });

      await schema.validate(data, {
        abortEarly: false,
      });
    } catch (error) {
      // como está no log, o erro está sendo aqui
      formRef.current?.setErrors({
        name: 'Nome obrigatório',
      });
    }
  }, []);

  return (
    <Container>
      <Background />
      <Content>
        <img src={logo} alt="GoBarber" />
        <Form ref={formRef} onSubmit={handleSubmit}>
          <h1>Faça seu cadastro</h1>

          <Input type="text" icon={FiUser} name="name" placeholder="Nome" />
          <Input type="text" icon={FiMail} name="email" placeholder="E-mail" />
          <Input
            type="password"
            icon={FiLock}
            name="password"
            placeholder="Senha"
          />

          <Button type="submit">Cadastrar</Button>
        </Form>

        <a href="create-count">
          <FiArrowLeft />
          Voltar para login
        </a>
      </Content>
    </Container>
  );
};

export default SignUp;