fix：

config/config.ts

@@ -49,29 +49,29 @@ const config: any = {
     defaultSizes: 'parsed', // stat  // gzip
   },
   inlineLimit: 10000,
-  chunks: ['vendors', 'umi'],
-  chainWebpack: function (config, { webpack }) {
-    config.merge({
-      optimization: {
-        minimize: true,
-        splitChunks: {
-          chunks: 'all',
-          minSize: 30000,
-          minChunks: 3,
-          automaticNameDelimiter: '.',
-          cacheGroups: {
-            vendor: {
-              name: 'vendors',
-              test({ resource }) {
-                return /[\\/]node_modules[\\/]/.test(resource);
-              },
-              priority: 10,
-            },
-          },
-        },
-      }
-    });
-  },
+  // chunks: ['vendors', 'umi'],
+  // chainWebpack: function (config, { webpack }) {
+  //   config.merge({
+  //     optimization: {
+  //       minimize: true,
+  //       splitChunks: {
+  //         chunks: 'all',
+  //         minSize: 30000,
+  //         minChunks: 3,
+  //         automaticNameDelimiter: '.',
+  //         cacheGroups: {
+  //           vendor: {
+  //             name: 'vendors',
+  //             test({ resource }) {
+  //               return /[\\/]node_modules[\\/]/.test(resource);
+  //             },
+  //             priority: 10,
+  //           },
+  //         },
+  //       },
+  //     }
+  //   });
+  // },
   cssLoader: {
     localsConvention: 'camelCase',  // 将style中的class由 .foo-body 转化为fooBody调用
   },