Property "basicsForm" was accessed during render but is not defined on instance.

这个报错的意思是在渲染时访问了名为"basicsForm"的属性，但是在组件实例中没有定义。根据引用和引用的内容，这个错误通常是由于在组件的模板中使用了"basicsForm"属性，但在组件实例中并没有对其进行定义所致。

要解决这个问题，你可以按照引用中的示例，在组件的实例中定义"basicsForm"属性。你可以使用Vue 3中的`ref`函数来定义一个可响应式的属性。例如：

import { ref } from 'vue'

export default {
  setup() {
    const basicsForm = ref('')

    // 在setup函数中返回basicsForm属性
    return {
      basicsForm
    }
  }
}

通过在组件的实例中定义"basicsForm"属性，你就可以在模板中访问该属性而不再出现报错信息了。

相关问题

Property "endPoint" was accessed during render but is not defined on instance.

这个错误通常出现在 Vue.js 应用中，意味着你在组件渲染期间访问了一个未定义的属性 "endPoint"。这可能是因为你在模板或计算属性中引用了 "endPoint"，但在组件实例中没有定义它。

要解决这个问题，你需要确保在组件实例中定义了 "endPoint" 属性或者在访问该属性之前进行检查，看看它是否已经被定义。例如，你可以使用 `v-if` 指令检查属性是否存在：

<template>
  <div v-if="endPoint">{{ endPoint }}</div>
</template>

<script>
export default {
  data() {
    return {
      endPoint: 'http://example.com/api',
    }
  },
}
</script>

另外，你也可以在组件创建期间检查属性是否存在，在 `created()` 钩子函数中进行处理：

export default {
  created() {
    if (!this.endPoint) {
      console.warn('endPoint is not defined.')
    }
  },
}

Property "grades" was accessed during render but is not defined on instance.

This error occurs when you are trying to access a property called "grades" in your component during the render phase, but this property is not defined in the component's data, props, or computed properties.

To fix this error, you need to make sure that the "grades" property is defined in your component. You can define it in the data object like this:

data() {
  return {
    grades: []
  }
}

Or, if the property is passed down from a parent component as a prop, you can define it in the props object like this:

props: {
  grades: {
    type: Array,
    default: []
  }
}

If the "grades" property is calculated based on other properties in the component, you can define it in the computed properties like this:

computed: {
  grades() {
    // Calculate the grades here
    return [...];
  }
}

Once you have defined the "grades" property in your component, the error should be resolved.