How to solve the problem of 'Error: Invalid route component: xxx' when using vue-router in a Vue application?

Vue is a popular front-end framework that allows developers to quickly build efficient, reusable web applications. Vue-router is a plug-in in the Vue framework that helps developers easily manage application routing and navigation. However, when using Vue-router, you sometimes encounter a common error: "Error: Invalid route component: xxx". This article will explain the causes and solutions to this error.

Reason

In Vue-router, when we define a route, we need to specify the component corresponding to the route. For example:

const routes = [
  {
    path: '/home',
    component: Home
  },
  // ...
]

Among them, Home is a component. If we specify a component that does not exist when defining a route, the error "Error: Invalid route component: xxx" will appear.

Solution

The solution to this problem is simple: check your route definitions and make sure each route specifies the correct component. There are several possible causes and solutions:

1. Component introduction error

It is likely that an error occurred when using the import statement to introduce the component. You need to check if the file path of the component is correct.

2. Component name input error

You need to check whether the name of the component is consistent with the name exported in the file. For example, if what you export in the component file is:

export default {
  // ...
}

, then you need to write in the route definition:

const routes = [
  {
    path: '/home',
    component: Home
  },
  // ...
]

instead of:

const routes = [
  {
    path: '/home',
    component: Home
  },
  // ...
]

3. The component is not defined

You need to check whether the component is defined correctly. This error will occur if you use a component that does not exist.

4. Component loading failure

If you use lazy loading to introduce components when using packaging tools such as webpack, component loading may fail. You need to check if the component is loaded correctly.

Conclusion

The reason for the error "Error: Invalid route component: xxx" is that Vue-router cannot find the specified component. The way to solve this problem is to check your route definitions and make sure that each route specifies the correct component and that the component definition is correct. If you can troubleshoot the problem according to the above methods, you will soon be able to solve this error and let your Vue application run smoothly.

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