Vue TS validate fix
March 22, 2025 · AI Conversations
src/views/dashboards/usersection/AddPortfolio.vue:47:13 – error TS2339: Property 'valid' does not exist on type '{ valid: boolean; errors: { id: string | number; errorMessages: string[]; }[]; } | undefined'.
47 const { valid } = await form.value?.validate();
error TS2339: Property 'valid' does not exist on type '{ valid: boolean; errors: { id: string | number; errorMessages: string[]; }[]; } | undefined'.
is TypeScript telling you that `form.value?.validate()` might return `undefined`, so destructuring `{ valid }` from that result isn't safe unless you ensure it exists.
### ✅ Fix
You can safely destructure the result like this:
const result = await form.value?.validate();
if (result && result.valid) {
// Proceed with form submission
} else {
// Handle validation errors
}
Or if you are absolutely sure `form.value` and `validate()` will return the object (not `undefined`), you can use the non-null assertion (`!`):
const { valid } = await form.value!.validate();
if (valid) {
// do something
}
But the first approach is safer, especially in reactive Vue apps where `form.value` might not be initialized yet.
—
If you’re using a specific form validation library like `vee-validate`, `@vuelidate/core`, or something else, let me know — the exact behavior can differ depending on which one you're using.
55 imageFile: imageFile.value,
TS2322: Type 'null' is not assignable to type 'File'.
means you're assigning a potentially `null` value (`imageFile.value`) to a property that expects a `File`, and TypeScript is being strict about the types.
—
### ✅ Fixes
#### Option 1: **Make sure `imageFile.value` is a `File` before assigning**
You can do a type check before using it:
if (imageFile.value instanceof File) {
payload.imageFile = imageFile.value;
}
#### Option 2: **Provide a fallback or cast the type if you're sure it's a `File`**
If you're confident that `imageFile.value` won’t be `null` at this point:
imageFile: imageFile.value as File
#### Option 3: **Update your TypeScript type to allow `File | null`**
If you're intentionally allowing `null`, update the expected type accordingly:
interface Payload {
imageFile: File | null;
}
Then this line will be fine:
imageFile: imageFile.value,
—
Let me know how you're declaring `imageFile`, and I can suggest the cleanest fix for your case.
const docId = await addPortfolioItem({
title: title.value,
description: description.value,
url: url.value,
imageFile: imageFile.value,
category: selectedCategory.value,
})
try {
const docId = await addPortfolioItem({
title: title.value,
description: description.value,
url: url.value,
imageFile: imageFile.value,
category: selectedCategory.value,
});
And the error:
TS2322: Type 'null' is not assignable to type 'File'.
It's very likely that `imageFile.value` is defined like this:
const imageFile = ref<File | null>(null);
So TypeScript sees the possibility that `imageFile.value` could still be `null`, which conflicts with `addPortfolioItem()` expecting a strict `File`.
—
### ✅ Recommended Fixes
#### Option 1: Check before calling the function
Add a runtime check to make sure `imageFile.value` is not `null`:
if (!imageFile.value) {
throw new Error('Please upload an image file before submitting.');
}
const docId = await addPortfolioItem({
title: title.value,
description: description.value,
url: url.value,
imageFile: imageFile.value, // now TypeScript knows it's not null
category: selectedCategory.value,
});
#### Option 2: Add a non-null assertion (⚠️ only if you're sure it's not null)
imageFile: imageFile.value!,
But be careful: if `imageFile.value` is ever actually `null`, this will throw a runtime error.
#### Option 3: Update `addPortfolioItem()` to accept `File | null`
If `imageFile` is optional or nullable in your use case, you can update your function signature:
function addPortfolioItem(data: {
title: string;
description: string;
url: string;
imageFile: File | null;
category: string;
}) {
// ...
}
—
Let me know how you're handling image upload or how `imageFile` is defined, and I can tailor the suggestion even more.
57 category: selectedCategory.value,
TS2561: Object literal may only specify known properties, but 'category' does not exist in type ...
means you're passing a property `category` to `addPortfolioItem()`, but the function is expecting a property named `categoryId` instead.
—
### ✅ Fix
You should change this line:
category: selectedCategory.value,
to:
categoryId: selectedCategory.value,
So the final call becomes:
const docId = await addPortfolioItem({
title: title.value,
description: description.value,
url: url.value,
imageFile: imageFile.value!,
categoryId: selectedCategory.value,
});
This will align with the expected parameter type for `addPortfolioItem()`:
{
title: string;
description: string;
url: string;
imageFile: File;
categoryId: string;
}
—
Let me know if `selectedCategory.value` actually contains the full category object and not just the ID — in that case, we might need to do something like `selectedCategory.value.id`.
@import 'vuetify/styles/main.sass';
@import './override';
@import './layout/container';
@import './layout/sidebar';
@import './layout/topbar';
@import './components/VButtons';
@import './components/VCard';
@import './components/VField';
@import './components/VInput';
@import './components/VNavigationDrawer';
@import './components/VShadow';
@import './components/VTextField';
@import './components/VTabs';
@import './pages/dashboards';
@import 'vue3-perfect-scrollbar/style.css';
transforming (12) src/config.tsDeprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.
More info and automated migrator: https://sass-lang.com/d/import
╷
1 │ @import './variables';
│ ^^^^^^^^^^^^^
╵
../../../../src/scss/style.scss 1:9 root stylesheet
Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.
More info and automated migrator: https://sass-lang.com/d/import
╷
2 │ @import 'vuetify/styles/main.sass';
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^
╵
../../../../src/scss/style.scss 2:9 root stylesheet
Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.
because you're using the old `@import` rule, which is deprecated in favor of the newer `@use` and `@forward` system in Dart Sass.
—
### ✅ TL;DR: What you should do
You **don’t have to fix it immediately**, but to future-proof your project, you **should** migrate your SCSS/SASS files from `@import` to `@use` or `@forward`.
—
### 🔧 How to migrate `@import` to `@use`
#### Example:
// Before (using @import)
@import './variables';
// After (using @use)
@use './variables' as *;
If you're using variables, mixins, or functions globally, the `as *` allows them to be accessed without a namespace.
—
### 📦 Vuetify Example Fix
For this line:
@import 'vuetify/styles/main.sass';
Vuetify supports `@use` too:
@use 'vuetify/styles' with (
$color-pack: false
);
Or just:
@use 'vuetify/styles';
> ⚠️ If you're using Vuetify with custom variables, make sure to `@use` your variables **before** the Vuetify styles.
—
### 🛠 Tool to auto-migrate
Sass offers an automated tool to help migrate:
👉 https://sass-lang.com/d/import
You can install it and run:
npx sass-migrator division **/*.scss
npx sass-migrator module **/*.scss
—
### ✅ Recommendation
Since this is just a warning (not an error), your project will still build for now. But Dart Sass **will drop `@import` entirely in v3.0.0**, so it's a good idea to start migrating soon.
Let me know if you want help migrating your files step-by-step — I can help convert them with Vuetify + your layout in mind.
@import 'vuetify/styles/main.sass';
@import './override';
@import './layout/container';
@import './layout/sidebar';
@import './layout/topbar';
@import './components/VButtons';
@import './components/VCard';
@import './components/VField';
@import './components/VInput';
@import './components/VNavigationDrawer';
@import './components/VShadow';
@import './components/VTextField';
@import './components/VTabs';
@import './pages/dashboards';
@import 'vue3-perfect-scrollbar/style.css';
adjust above file
—
### ✅ Updated SCSS File (`style.scss` or similar)
// Use global variables (e.g., colors, fonts)
@use './variables' as *;
// Vuetify styles
@use 'vuetify/styles' as *;
// Your custom overrides and layout files
@use './override' as *;
@use './layout/container' as *;
@use './layout/sidebar' as *;
@use './layout/topbar' as *;
// Component styles
@use './components/VButtons' as *;
@use './components/VCard' as *;
@use './components/VField' as *;
@use './components/VInput' as *;
@use './components/VNavigationDrawer' as *;
@use './components/VShadow' as *;
@use './components/VTextField' as *;
@use './components/VTabs' as *;
// Page-specific styles
@use './pages/dashboards' as *;
// Regular CSS import — this is fine to keep as-is
@import 'vue3-perfect-scrollbar/style.css';
—
### 🧠 Notes
– `@use … as *;` allows you to access all mixins/variables/functions without namespace prefixing.
– All SCSS partials (like `variables.scss`, `VCard.scss`, etc.) **must not use `@import` anymore** internally either.
– Ensure every imported file ends with `.scss` or `.sass` if you're using SCSS/SASS modules.
– Leave **CSS imports** like `vue3-perfect-scrollbar/style.css` as `@import` — they don’t use Sass and `@use` won’t work for them.
—
Let me know if you'd like help migrating one of those files (like `variables` or `VCard`) into the new `@use`/`@forward` format — happy to help step-by-step.
[sass] Error: Undefined variable.
╷
24 │ border-radius: $border-radius-root;
│ ^^^^^^^^^^^^^^^^^^^
╵
../../../../src/scss/layout/_container.scss 24:18 @use
../../../../src/scss/style.scss 9:1 root stylesheet
—
### ✅ Fix: Update `variables.scss` to allow global access
In your `src/scss/variables.scss`, you should:
1. Change `@import` to `@forward`
2. If needed, make sure you're using `!default` for your variables
#### `variables.scss` (or `_variables.scss`):
// This file should forward all variables
$border-radius-root: 8px !default;
@forward "self"; // optional if you’re just defining variables here
If your file is just defining variables, you can skip `@forward` and just save it as `_variables.scss`.
—
### ✅ Then in your `style.scss` (or wherever you're using them)
Instead of:
@use './variables' as *;
You should:
@use './variables'; // without `as *`
And then use:
border-radius: variables.$border-radius-root;
This is **recommended** by Sass to avoid global scope issues.
—
### 🤔 But if you want the old global behavior…
You can do this:
@use './variables' as *; // allows direct use of variables like $border-radius-root
But make sure `variables.scss` has:
$border-radius-root: 8px !default;
Otherwise `@use` will not allow you to import those values.
—
### 🔁 Summary
– With `@use`, you must **namespace your variables** (`variables.$border-radius-root`) **unless** you use `as *`.
– You must declare all your variables with `!default`.
– The old global style from `@import` no longer works unless you adapt your file structure.
—
Let me know if you'd like me to walk through updating your `variables.scss` and a dependent file like `_container.scss`.
@use 'sass:math';
@use 'sass:map';
@use 'sass:meta';
@use 'vuetify/lib/styles/tools/functions' as *;
// This will false all colors which is not necessory for theme
$color-pack: false;
// Global font size and border radius
$font-size-root: 1rem;
$border-radius-root: 12px;
$body-font-family: 'Roboto', sans-serif !default;
$heading-font-family: $body-font-family !default;
$btn-font-weight: 400 !default;
$btn-letter-spacing: 0 !default;
// Global Radius as per breakeven point
$rounded: () !default;
$rounded: map-deep-merge(
(
0: 0,
'sm': $border-radius-root * 0.5,
null: $border-radius-root,
'md': $border-radius-root * 1,
'lg': $border-radius-root * 2,
'xl': $border-radius-root * 6,
'pill': 9999px,
'circle': 50%,
'shaped': $border-radius-root * 6 0
),
$rounded
);
// Global Typography
$typography: () !default;
$typography: map-deep-merge(
(
'h1': (
'size': 2.125rem,
'weight': 700,
'line-height': 3.5rem,
'font-family': inherit
),
'h2': (
'size': 1.5rem,
'weight': 700,
'line-height': 2.5rem,
'font-family': inherit
),
'h3': (
'size': 1.25rem,
'weight': 600,
'line-height': 2rem,
'font-family': inherit
),
'h4': (
'size': 1rem,
'weight': 600,
'line-height': 1.5rem,
'font-family': inherit
),
'h5': (
'size': 0.875rem,
'weight': 500,
'line-height': 1.2rem,
'font-family': inherit
),
'h6': (
'size': 0.75rem,
'weight': 500,
'font-family': inherit
),
'subtitle-1': (
'size': 0.875rem,
'weight': 500,
'line-height': 1rem,
'font-family': inherit
),
'subtitle-2': (
'size': 0.75rem,
'weight': 400,
'line-height': 1rem,
'font-family': inherit
),
'body-1': (
'size': 0.875rem,
'weight': 400,
'font-family': inherit
),
'body-2': (
'size': 0.75rem,
'weight': 400,
'font-family': inherit
),
'button': (
'size': 0.875rem,
'weight': 500,
'font-family': inherit,
'text-transform': uppercase
),
'caption': (
'size': 0.75rem,
'weight': 400,
'font-family': inherit
),
'overline': (
'size': 0.75rem,
'weight': 500,
'font-family': inherit,
'text-transform': uppercase
)
),
$typography
);
// Custom Variables
// colors
$white: #fff !default;
// cards
$card-item-spacer-xy: 20px 24px !default;
$card-text-spacer: 24px !default;
$card-title-size: 18px !default;
// Global Shadow
$box-shadow: 1px 0 20px rgb(0 0 0 / 8%);
To fix this:
—
### ✅ Step 1: Rename `variables.scss` to `_variables.scss` (optional but recommended)
This makes it a partial, which is standard practice in Sass for shared files.
—
### ✅ Step 2: Create a new file `src/scss/_index.scss` (or `_styles.scss`) and add:
@forward 'variables';
> This file can act as a single entry point to re-export all shared variables, mixins, etc.
—
### ✅ Step 3: In `style.scss`, change this:
@use './variables' as *;
to:
@use './index' as *; // or './styles' if you named it that
—
### ✅ Alternative (Quick Fix): Keep `@use` with `as *`
If you don’t want to create an index file, just do:
@use './variables' as *;
**BUT** update `variables.scss` to mark all variables with `!default` (which you’ve mostly done, but a few like `$border-radius-root` are missing it):
#### Update:
$border-radius-root: 12px !default;
$font-size-root: 1rem !default;
$color-pack: false !default;
Add `!default` to any variable that’s **not** already marked.
—
### ✅ Now in `_container.scss`, you can use:
border-radius: $border-radius-root;
Only if you used `@use './variables' as *;` in `style.scss`.
—
Let me know if you'd like to organize all styles via an `index.scss` for better scalability — I can help you structure that too.