What is going wrong? Angular, bootstrap, popper

ERROR in ./node_modules/css-loader?{"sourceMap":false,"importLoaders":1}!./node_modules/postcss-loader?{"ident":"postcss"}!./node_modules/bootstrap/dist/css/bootstrap.min.css
Module build failed: BrowserslistError: Unknown browser major
    at error (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\browserslist\index.js:37:11)
    at Function.browserslist.checkName (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\browserslist\index.js:320:18)
    at Function.select (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\browserslist\index.js:438:37)
    at C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\browserslist\index.js:207:41
    at Array.forEach (<anonymous>)
    at browserslist (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\browserslist\index.js:196:13)
    at Browsers.parse (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\autoprefixer\lib\browsers.js:44:14)
    at new Browsers (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\autoprefixer\lib\browsers.js:39:28)
    at loadPrefixes (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\autoprefixer\lib\autoprefixer.js:56:18)
    at plugin (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\autoprefixer\lib\autoprefixer.js:62:18)
    at LazyResult.run (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\postcss\lib\lazy-result.js:274:20)
    at LazyResult.asyncTick (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\postcss\lib\lazy-result.js:189:32)
    at LazyResult.asyncTick (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\postcss\lib\lazy-result.js:201:22)
    at processing.Promise.then._this2.processed (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\postcss\lib\lazy-result.js:228:20)
    at new Promise (<anonymous>)
    at LazyResult.async (C:\Users\Usuario\Desktop\marketpecas\marketpecas\node_modules\postcss\lib\lazy-result.js:225:27)
 @ ./node_modules/bootstrap/dist/css/bootstrap.min.css 4:14-127
 @ multi ./src/styles.css ./node_modules/font-awesome/css/font-awesome.css ./node_modules/bootstrap/dist/css/bootstrap.min.css