TSLINT错误:类型'typeof React'上不存在属性'Component'

问题描述 投票:0回答:2

我下载了[react-native-redux-typescript-boilerplate]:https://reactnativeseed.com/。该项目在Android模拟器中运行顺畅。但是,有很多tslint错误,特别是在JSX语法中(即.tsx文件)。一个主要的是https://reactnativeseed.com/

我使用webstrom作为我的代码编辑器,然后我检查了webstrom和项目使用的打字稿的版本。有相同的。

这些是版本:1。打字稿 - 2.6.2 2. react-native - 0.59.6 3. react - 16.2.0 4. react-redux - 5.0.6 5. @ types / react - “^ 16.8.14” 6. @ types / react-native - “^ 0.47.7”

还有什么我需要检查的吗?

我还安装了[“tslint-fix”:“^ 0.1.3”]:https://www.npmjs.com/package/tslint-fix

例如:index.tsx

import * as React from "react";
import { Item, Input, Icon, Form, Toast } from "native-base";
import { Field, reduxForm } from "redux-form";
import Login from "../../stories/screens/Login";

const required = value => (value ? undefined : "Required");
const maxLength = max => value => (value && value.length > max ? `Must be ${max} characters or less` : undefined);
const maxLength15 = maxLength(15);
const minLength = min => value => (value && value.length < min ? `Must be ${min} characters or more` : undefined);
const minLength8 = minLength(8);
const email = value =>
    value && !/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i.test(value) ? "Invalid email address" : undefined;
const alphaNumeric = value => (value && /[^a-zA-Z0-9 ]/i.test(value) ? "Only alphanumeric characters" : undefined);

export interface Props {
    navigation: any;
    valid: boolean;
}
export interface State {}
class LoginForm extends React.Component<Props, State> {
    textInput: any;

    renderInput({ input, meta: { touched, error } }) {
        return (
            <Item error={error && touched}>
                <Icon active name={input.name === "email" ? "person" : "unlock"} />
                <Input
                    ref={c => (this.textInput = c)}
                    placeholder={input.name === "email" ? "Email" : "Password"}
                    secureTextEntry={input.name === "password" ? true : false}
                    {...input}
                />
            </Item>
        );
    }

    login() {
        if (this.props.valid) {
            this.props.navigation.navigate("Drawer");
        } else {
            Toast.show({
                text: "Enter Valid Username & password!",
                duration: 2000,
                position: "top",
                textStyle: { textAlign: "center" },
            });
        }
    }

    render() {
        const form = (
            <Form>
                <Field name="email" component={this.renderInput} validate={[email, required]} />
                <Field
                    name="password"
                    component={this.renderInput}
                    validate={[alphaNumeric, minLength8, maxLength15, required]}
                />
            </Form>
        );
        return <Login loginForm={form} onLogin={() => this.login()} />;
    }
}
const LoginContainer = reduxForm({
    form: "login",
})(LoginForm);
export default LoginContainer;

在render()的上述文件中显示了很多错误。其中一些是:1。属性'组件'在类型'typeof React'上不存在。 2. JSX元素类型'Item'不是JSX元素的构造函数。 'Item'类型中缺少属性'render'。还有更多类似的。

reactjs typescript react-native
2个回答
2
投票

我终于解决了这个问题。 @ type / react使用的是typescript版本2.8.1而我的项目使用的是typescript版本2.6.2。所以,我将我的项目的打字稿版本升级到2.8.1,错误消失了。


0
投票

你忘了导入React

import React, { Component } from 'react';

class LoginForm extends React.Component<Props, State>替换class LoginForm extends Component<Props, State>

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