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问题:
I'm trying to use bootstrap 4 with my angular installation. i've run npm install --save bootstrap@next but i have a break at runtime :
./node_modules/css-loader?{"sourceMap":false,"importLoaders":1}!./node_modules/postcss-loader/lib?{"ident":"postcss","plugins":[null,null,null],"sourceMap":false}!./node_modules/bootstrap/dist/css/bootstrap.min.css Module build failed: BrowserslistError: Unknown browser major at error (C:\xampp\htdocs\tick_master_angular\web\node_modules\browserslist\index.js:37:11) at Function.browserslist.checkName (C:\xampp\htdocs\tick_master_angular\web\node_modules\browserslist\index.js:320:18) at Function.select (C:\xampp\htdocs\tick_master_angular\web\node_modules\browserslist\index.js:438:37) at C:\xampp\htdocs\tick_master_angular\web\node_modules\browserslist\index.js:207:41 at Array.forEach (native) at browserslist (C:\xampp\htdocs\tick_master_angular\web\node_modules\browserslist\index.js:196:13) at Browsers.parse (C:\xampp\htdocs\tick_master_angular\web\node_modules\autoprefixer\lib\browsers.js:44:14) at new Browsers (C:\xampp\htdocs\tick_master_angular\web\node_modules\autoprefixer\lib\browsers.js:39:28) at loadPrefixes (C:\xampp\htdocs\tick_master_angular\web\node_modules\autoprefixer\lib\autoprefixer.js:56:18) at plugin (C:\xampp\htdocs\tick_master_angular\web\node_modules\autoprefixer\lib\autoprefixer.js:62:18) at LazyResult.run (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:270:20) at LazyResult.asyncTick (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:185:32) at LazyResult.asyncTick (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:197:22) at processing.Promise.then._this2.processed (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:224:20) at LazyResult.async (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:221:27) at LazyResult.then (C:\xampp\htdocs\tick_master_angular\web\node_modules\postcss-loader\node_modules\postcss\lib\lazy-result.js:127:21) @ ./node_modules/css-loader?{"sourceMap":false,"importLoaders":1}!./node_modules/postcss-loader/lib?{"ident":"postcss","sourceMap":false}!./src/styles.css 3:10-190 @ ./src/styles.css @ multi ./src/styles.css
Can someone help please?
回答1:
The issue could be that you got the latest build with some bug. I noticed that bootstrap@4.0.0-beta.3 is causing this issue, but not bootstrap@4.0.0-beta.2. Check if yours is the same. Try uninstalling that and run something with a specific version.
npm install bootstrap@4.0.0-alpha.6
This resolved my problem.
回答2:
Bootstrap new version come which is v4.0.0-beta.2 and your package.json has ^bootstrap4.0.0-alpha.6 so new bootstrap version wants browsers list dependency.
To run your app remove lastest version tag (^) & run npm install command
回答3:
For Bootstrap 4.0.0 (release) I have to upgrade the CLI to 1.6.5 ― and it works!
"dependencies": { "@angular/animations": "^5.0.0", "@angular/common": "^5.0.0", "@angular/compiler": "^5.0.0", "@angular/core": "^5.0.0", "@angular/forms": "^5.0.0", "@angular/http": "^5.0.0", "@angular/platform-browser": "^5.0.0", "@angular/platform-browser-dynamic": "^5.0.0", "@angular/router": "^5.0.0", "@ng-bootstrap/ng-bootstrap": "1.0.0-beta.9", "bootstrap": "4.0.0", "core-js": "^2.4.1", "font-awesome": "^4.7.0", "jquery": "^3.2.1", "popper.js": "^1.12.9", "rxjs": "^5.5.2", "zone.js": "^0.8.14" }, "devDependencies": { "@angular/cli": "^1.6.5", "@angular/compiler-cli": "^5.0.0", "@angular/language-service": "^5.0.0", "@types/jasmine": "~2.5.53", "@types/jasminewd2": "~2.0.2", "@types/node": "~6.0.60", "codelyzer": "^4.0.1", "jasmine-core": "~2.6.2", "jasmine-spec-reporter": "~4.1.0", "karma": "~1.7.0", "karma-chrome-launcher": "~2.1.1", "karma-cli": "~1.0.1", "karma-coverage-istanbul-reporter": "^1.2.1", "karma-jasmine": "~1.1.0", "karma-jasmine-html-reporter": "^0.2.2", "protractor": "~5.1.2", "ts-node": "~3.2.0", "tslint": "~5.7.0", "typescript": "~2.4.2" }
回答4:
I've upgraded to Angular CLI 1.7.x and it started working fine. I recommend this solution. I mean upgrading the Angular CLI and it should work for you!
Another workaround is deleting the below lines from node_modules/bootstrap/package.json
"browserslist": [ "last 1 major version", = 1%", = 45", "Firefox >= 38", "Edge >= 12", "Explorer >= 10", "iOS >= 9", "Safari >= 9", "Android >= 4.4", "Opera >= 30" ],
回答5:
Was having same issue changed my dependency in package.json from this
"dependencies": { "@angular/animations": "^5.0.0", "@angular/common": "^5.0.0", "@angular/compiler": "^5.0.0", "@angular/core": "^5.0.0", "@angular/forms": "^5.0.0", "@angular/http": "^5.0.0", "@angular/platform-browser": "^5.0.0", "@angular/platform-browser-dynamic": "^5.0.0", "@angular/router": "^5.0.0", "@ng-bootstrap/ng-bootstrap": "^1.0.0-beta.9", "bootstrap": "^4.0.0-beta.3", "core-js": "^2.4.1", "font-awesome": "^4.7.0", "zone.js": "^0.8.14" }
to (changing "bootstrap": "4.0.0-beta.2" to a stable version)
"dependencies": { "@angular/animations": "^5.0.0", "@angular/common": "^5.0.0", "@angular/compiler": "^5.0.0", "@angular/core": "^5.0.0", "@angular/forms": "^5.0.0", "@angular/http": "^5.0.0", "@angular/platform-browser": "^5.0.0", "@angular/platform-browser-dynamic": "^5.0.0", "@angular/router": "^5.0.0", "@ng-bootstrap/ng-bootstrap": "^1.0.0-beta.9", "bootstrap": "4.0.0-beta.2", "core-js": "^2.4.1", "font-awesome": "^4.7.0", "zone.js": "^0.8.14" },
then,run: npm install ng serve
problem solved.!!
回答6:
Bootstrap 4 doesn't use CSS anymore. In this version the SCSS is used. So instead of importing '~bootstrap/scss/bootstrap.css', you should import '~bootstrap/scss/bootstrap.scss'.
回答7:
It works now without workaround with Angular CLI: 1.6.5. Angular CLI has been depending on an incompatible version of autoprefixer (https://github.com/angular/angular-cli/issues/9020)
Verify version by typing ng --version. Do not foget to update your dev dependency in package.json:
"@angular/cli": "1.6.5",
回答8:
For those still having problems:
Manually remove the url to bootsrap CSS from angular-cli.json
"styles": [ **"../node_modules/bootstrap/dist/css/bootstrap.min.css",** "../node_modules/font-awesome/css/font-awesome.min.css", "styles.css" ]
翻译