Console Error Troubleshooting
- Console Panel: Check for JS errors
- Network Panel: Check resource loading status (404 marked in red)
- Vue Devtools: Check if the component tree is rendered
Route Path Configuration Errors
- Route path configuration errors (e.g.,
componentnot imported correctly) - No default route set (
path: "/") - Dynamic route loading failed (e.g., wrong path in
() => import(...))
ts
const routes = [
{
path: "/",
component: () => import("@/views/Home.vue"), // Make sure the path is correct
},
];Abnormal Route Transition Behavior
Make sure the page has a single root tag
💡 Tip
In Vue.js, the <Transition> component is designed to handle transitions for a single node element. If you place multiple sibling nodes inside <Transition>, it will cause abnormal transition behavior.
vue
<!-- Incorrect Example -->
<template>
<!-- Comments also count as a node -->
<div>hello vue</div>
<div>hello vite</div>
<div>hello preview</div>
</template>
<!-- Correct Example -->
<template>
<div>
<!-- Comments also count as a node -->
<div>hello vue</div>
<div>hello vite</div>
<div>hello preview</div>
</div>
</template>Component Rendering Issues
- Undefined variables in the template
- Asynchronous component loading failed (e.g., API error causes component not to render)
vue
<template>
<!-- Add v-if to avoid undefined data -->
<div v-if="data">{{ data.content }}</div>
<!-- Use Suspense to handle async components -->
<Suspense>
<template #default>
<AsyncComponent />
</template>
<template #fallback>
<div>Loading...</div>
</template>
</Suspense>
</template>Environment Variable Issues
.envvariables do not start withVITE_- Production environment variables not configured correctly
ini
# .env.production
VITE_API_BASE = 'https://prod.api.com' # Correct prefixts
// Use variable
const apiUrl = import.meta.env.VITE_API_BASE;
nuyoah