NextJS error message: Failed prop type: The prop `href` expects a `string` or `object` in `< Link>`, but got `undefined` instead

6kkfgxo0  于 2023-01-05  发布在  Go
关注(0)|答案(2)|浏览(219)

我在NextJS项目中实现GatsbyJS项目中的头文件,并收到以下错误消息:
“错误:失败的属性类型:属性href需要<Link>中的stringobject,但得到的却是undefined。”
从header.jsx中删除以下内容时,不会提供任何错误消息:〈菜单按钮项={{图标:“/图片/图标/汉堡包. svg”}} /〉
你能告诉我我做错了什么吗?
这是我的头文件.jsx:

import React, { useEffect, useRef, useState } from "react";
import styled from "styled-components";
import Link from "next/link";
import { menuData } from "../../data/menuData";
import MenuButton from "../buttons/MenuButton.jsx";
import Image from "next/image";
import MenuTooltip from "../tooltips/MenuTooltip";

export default function Header() {
  const [isOpen, setIsOpen] = useState(false);
  const ref = useRef();
  const tooltipRef = useRef();

  function handleClick(event) {
    setIsOpen(!isOpen);
    event.preventDefault();
  }

  function handleClickOutside(event) {
    if (
      ref.current &&
      !ref.current.contains(event.target) &&
      !tooltipRef.current.contains(event.target)
    ) {
      setIsOpen(false);
    }
  }

  useEffect(() => {
    document.addEventListener("mousedown", handleClickOutside);

    return () => {
      document.removeEventListener("mousedown", handleClickOutside);
    };
  }, []);

  return (
    <Wrapper>
      <Link href="/">
        <Logo>
          <Image
            src="/images/logos/logo.png"
            alt="Logo"
            width={120}
            height={100}
          />
        </Logo>
      </Link>
      <MenuWrapper count={menuData.length} ref={ref}>
        {menuData.map((item, index) => (
          <MenuButton key={index} item={item} />
        ))}
        <HamburgerWrapper onClick={(event) => handleClick(event)}>
          <MenuButton item={{ icon: "/images/icons/hamburger.svg" }} />
        </HamburgerWrapper>
      </MenuWrapper>
      <div ref={tooltipRef}>
        <MenuTooltip isOpen={isOpen} />
      </div>
    </Wrapper>
  );
}

这是我的menuTooltip.jsx文件:

import React from "react";
import styled from "styled-components";
import { tooltipData } from "../../data/menuData";
import MenuButton from "../buttons/MenuButton";

export default function MenuTooltip(props) {
  const { isOpen } = props;
  return (
    <Wrapper isOpen={isOpen}>
      {tooltipData.map((item, index) => (
        <MenuButton key={index} item={item} />
      ))}
    </Wrapper>
  );
}

这是我的MenuButton.jsx文件:

import React from "react";
import styled from "styled-components";
import Link from "next/link";
import { Caption } from "../styles/TextStyles";

export default function MenuButton(props) {
  const { item } = props;
  return (
    <Link href={item.link} onClick={props.onClick} key={props}>
      <MenuItem hasTitle={!item.title ? false : true}>
        <img src={item.icon} />
        {item.title}
      </MenuItem>
    </Link>
  );
}

这是我的menuData.jsx文件:

export const menuData = [
  { title: "Learn", icon: "/images/icons/learner02_dm.svg", link: "/learn" },
  {
    title: "Articles",
    icon: "/images/icons/article_light.svg",
    link: "/articles",
  },
  {
    title: "Community",
    icon: "/images/icons/community_light.svg",
    link: "/community",
  },
  {
    title: "Entrepreneurs",
    icon: "/images/icons/business02_light.svg",
    link: "/entrepreneurs",
  },
];

export const footerMenuData = [
  { title: "Learn", icon: "/images/icons/learner02_dm.svg", link: "/learn" },
  {
    title: "Articles",
    icon: "/images/icons/article_light.svg",
    link: "/articles",
  },
  {
    title: "Community",
    icon: "/images/icons/community_light.svg",
    link: "/community",
  },
  {
    title: "Entrepreneurs",
    icon: "/images/icons/business02_light.svg",
    link: "/entrepreneurs",
  },
  {
    title: "Updates",
    icon: "/images/icons/calendar_light.svg",
    link: "/updates",
  },
  {
    title: "Help",
    icon: "/images/icons/help_light.svg",
    link: "/help",
  },
];

export const tooltipData = [
  { title: "Learn", icon: "/images/icons/learner02_dm.svg", link: "/learn" },
  {
    title: "Articles",
    icon: "/images/icons/article_light.svg",
    link: "/articles",
  },
  {
    title: "Community",
    icon: "/images/icons/community_light.svg",
    link: "/community",
  },
  {
    title: "Entrepreneurs",
    icon: "/images/icons/business02_light.svg",
    link: "/entrepreneurs",
  },
];
ar7v8xwq

ar7v8xwq1#

在链接中添加标记a,如下所示:

<link href....> 
  <a> 
    <image> 
    <p> text </p> 
  </a> 
</link>

我也经常得到这个错误...

mwecs4sa

mwecs4sa2#

哦,天哪!我被这个问题困扰了这么久,终于设法解决了它。虽然我很高兴这个被接受的答案对你有用,但很遗憾它对我没用。所以,我在这里留下了我在NextJS官方GitHub repo的讨论线程上找到的修复方法。

而不是将链接密钥直接传递到Linkhref属性中:

<Link href={item.link} {...other props}>...</Link>

以字符串形式传递,如下所示:

<Link href={`${item.link}`} {...other props}>...</Link>

如果需要,您可以将Link组件的子组件 Package 在<a>标记中,但这不是必需的,我的组件没有这个标记也能正常工作。仅供参考,我在Link组件中有一些SVG图标,这些图标造成了所有这些麻烦。

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