How to setup Tailwind for a new Angular project?

问题

I want to create a new Angular project using Tailwind CSS. My current CLI version is 10.1.1. Things I have done so far:

Create a new app using ng new my-app
Use Angular routing => yes
Use SCSS as the stylesheet
In the root directory of the project run npm i tailwindcss postcss-import postcss-loader postcss-scss @angular-builders/custom-webpack -D
In the src folder there is a styles.scss file, modify it to

@import 'tailwindcss/base';
@import 'tailwindcss/components';
@import 'tailwindcss/utilities';

In the root directory of the project run npx tailwind init
In the root directory of the project create a new file webpack.config.js with the following content

module.exports = {
  module: {
    rules: [
      {
        test: /\.scss$/,
        loader: "postcss-loader",
        options: {
          ident: "postcss",
          syntax: "postcss-scss",
          plugins: () => [
            require("postcss-import"),
            require("tailwindcss"),
            require("autoprefixer"),
          ],
        },
      },
    ],
  },
};

In the root directory there is a Angular.json file
- Search for the key projects => my-app => architect => build
  - Change the builder to "builder": "@angular-builders/custom-webpack:browser",
  - Add to the options

"customWebpackConfig": {
    "path": "./webpack.config.js"
},

Search for the key projects => my-app => architect => serve
- Change the builder to "builder": "@angular-builders/custom-webpack:dev-server",
- Add to the options

"customWebpackConfig": {
    "path": "./webpack.config.js"
},

Run the app with ng serve from the app's root directory

I'm getting this error

ERROR in ./src/styles.scss (./node_modules/css-loader/dist/cjs.js??ref--13-1!./node_modules/@angular-devkit/build-angular/node_modules/postcss-loader/src??embedded!./node_modules/resolve-url-loader??ref--13-3!./node_modules/sass-loader/dist/cjs.js??ref--13-4!./node_modules/postcss-loader/dist/cjs.js??postcss!./src/styles.scss) Module build failed (from ./node_modules/postcss-loader/dist/cjs.js): ValidationError: Invalid options object. PostCSS Loader has been initialized using an options object that does not match the API schema.

options has an unknown property 'plugins'. These properties are valid: object { postcssOptions?, execute?, sourceMap? } at validate (/.../my-app/node_modules/schema-utils/dist/validate.js:98:11) at Object.loader (/.../my-app/node_modules/postcss-loader/dist/index.js:43:28)

ERROR in Module build failed (from ./node_modules/postcss-loader/dist/cjs.js): ValidationError: Invalid options object. PostCSS Loader has been initialized using an options object that does not match the API schema.

same text as above

How can I setup Tailwind correctly?

回答1:

Imports are 'tailwindcss', not 'tailwind':

@import 'tailwindcss/base';
@import 'tailwindcss/components';
@import 'tailwindcss/utilities';

回答2:

I have found the answer after banging my head everywhere today, change your webpack.config.js to,

module.exports = {
  module: {
    rules: [
      {
        test: /\.scss$/,
        loader: "postcss-loader",
        options: {
          postcssOptions: {
            ident: "postcss",
            syntax: "postcss-scss",
            plugins: [
              require("postcss-import"),
              require("tailwindcss"),
              require("autoprefixer"),
            ],
          },
        },
      },
    ],
  },
};

There is small change, plugins now take array instead of function. Thanks in advance 😉.

If anyone is still running into issue, checkout this blog I've written on Angular 10 + Tailwind CSS 👇

https://fullyunderstood.com/get-started-with-angular-tailwind-css/

回答3:

I managed to get Angular 10 + Angular Material to work with Tailwind CSS using configuration highlighted in this diff - Tailwind CSS support in Angular 10, with Angular Material.

Some key points besides what has already been highlighted in the question/answers:

Need to explicitly install postcss (8.x). Somehow default pulls (7.x) causing Error: true is not a PostCSS plugin.
Config in webpack.config.js depends on postcss-loader version 4.x.
If you are using Angular Material, you will get Error: Failed to find '~@angular/material/theming'. To resolve this, I limit the scss files that will be processed by postcss by separating the scss file (i.e. test: /tailwind\.scss$/ in webpack.config.js).

So far, looks like it is working. 🤞

来源：https://stackoverflow.com/questions/63858991/how-to-setup-tailwind-for-a-new-angular-project

标签

javascript

angular

Webpack

angular-cli

tailwind-css