[bugfix] gulp-less import (#2319)

build/build-style.js

@@ -1,3 +1,4 @@
+const path = require('path');
 const gulp = require('gulp');
 const less = require('gulp-less');
 const csso = require('gulp-csso');
@@ -7,7 +8,9 @@ const postcss = require('gulp-postcss');
 gulp.task('compile', () => (
   gulp
     .src(['../es/**/*.less', '../lib/**/*.less'])
-    .pipe(less())
+    .pipe(less({
+      paths: [path.resolve(__dirname, 'node_modules')]
+    }))
     .pipe(postcss())
     .pipe(csso())
     .pipe(gulp.dest(file => file.base.replace('.less', '.css')))

build/webpack.dev.js

@@ -61,7 +61,12 @@ module.exports = {
           'style-loader',
           'css-loader',
           'postcss-loader',
-          'less-loader'
+          {
+            loader: 'less-loader',
+            options: {
+              paths: [path.resolve(__dirname, 'node_modules')]
+            }
+          }
         ]
       },
       {