diff --git a/build.js b/build.js
index 87cb73b..a873e16 100644
--- a/build.js
+++ b/build.js
@@ -6,7 +6,7 @@ Es.buildSync({
   outdir: 'dist',
   platform: 'node',
   format: 'esm',
-  // minify: true,
+  minify: true,
   bundle: true,
   target: 'node12'
 })
diff --git a/package.json b/package.json
index 4df0bb8..dd5e419 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@bytedo/less",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "type": "module",
   "description": "less精简版",
   "homepage": "http://lesscss.org",
diff --git a/src/less-node/index.js b/src/less-node/index.js
index b01a3ea..02b1d22 100644
--- a/src/less-node/index.js
+++ b/src/less-node/index.js
@@ -10,12 +10,10 @@ import PluginLoader from './plugin-loader'
 import fs from 'fs'
 import options from '../less/default-options'
 
-// allow people to create less with their own environment
-less.createFromEnvironment = createFromEnvironment
 less.PluginLoader = PluginLoader
-less.fs = fs
-less.FileManager = FileManager
-less.UrlFileManager = UrlFileManager
+// less.fs = fs
+// less.FileManager = FileManager
+// less.UrlFileManager = UrlFileManager
 
 // Set up options
 less.options = options
diff --git a/src/less-node/url-file-manager.js b/src/less-node/url-file-manager.js
index d628ab4..4e4244e 100644
--- a/src/less-node/url-file-manager.js
+++ b/src/less-node/url-file-manager.js
@@ -7,7 +7,6 @@ const isUrlRe = /^(?:https?:)?\/\//i
 import url from 'url'
 let request
 import AbstractFileManager from '../less/environment/abstract-file-manager.js'
-import logger from '../less/logger'
 
 const UrlFileManager = function () {}
 UrlFileManager.prototype = Object.assign(new AbstractFileManager(), {
@@ -53,7 +52,7 @@ UrlFileManager.prototype = Object.assign(new AbstractFileManager(), {
         }
         body = body.toString('utf8')
         if (!body) {
-          logger.warn(
+          console.warn(
             `Warning: Empty body (HTTP ${resp.statusCode}) returned by "${urlStr}"`
           )
         }
diff --git a/src/less/environment/environment.js b/src/less/environment/environment.js
index a59f67a..f8888f6 100644
--- a/src/less/environment/environment.js
+++ b/src/less/environment/environment.js
@@ -3,8 +3,6 @@
  *       environment, file managers, and plugin manager
  */
 
-import logger from '../logger'
-
 class Environment {
   constructor(externalEnvironment, fileManagers) {
     this.fileManagers = fileManagers || []
@@ -32,12 +30,12 @@ class Environment {
 
   getFileManager(filename, currentDirectory, options, environment, isSync) {
     if (!filename) {
-      logger.warn(
+      console.warn(
         'getFileManager called with no filename.. Please report this issue. continuing.'
       )
     }
     if (currentDirectory === undefined) {
-      logger.warn(
+      console.warn(
         'getFileManager called with null directory.. Please report this issue. continuing.'
       )
     }
diff --git a/src/less/functions/data-uri.js b/src/less/functions/data-uri.js
index 5c18de0..0051eea 100644
--- a/src/less/functions/data-uri.js
+++ b/src/less/functions/data-uri.js
@@ -1,7 +1,6 @@
 import Quoted from '../tree/quoted'
 import URL from '../tree/url'
 import * as utils from '../utils'
-import logger from '../logger'
 
 export default environment => {
   const fallback = (functionThis, node) =>
@@ -71,7 +70,7 @@ export default environment => {
         environment
       )
       if (!fileSync.contents) {
-        logger.warn(
+        console.warn(
           `Skipped data-uri embedding of ${filePath} because file not found`
         )
         return fallback(this, filePathNode || mimetypeNode)
diff --git a/src/less/import-manager.js b/src/less/import-manager.js
index 482191b..342633a 100644
--- a/src/less/import-manager.js
+++ b/src/less/import-manager.js
@@ -2,7 +2,6 @@ import contexts from './contexts'
 import Parser from './parser/parser'
 import LessError from './less-error'
 import * as utils from './utils'
-import logger from './logger'
 
 export default function (environment) {
   // FileInfo = {
@@ -49,7 +48,7 @@ export default function (environment) {
         const importedEqualsRoot = fullPath === importManager.rootFilename
         if (importOptions.optional && e) {
           callback(null, { rules: [] }, false, null)
-          logger.info(
+          console.info(
             `The file ${fullPath} was skipped because it was not found and the import was marked optional.`
           )
         } else {
diff --git a/src/less/index.js b/src/less/index.js
index 72475c7..3d2e1b6 100644
--- a/src/less/index.js
+++ b/src/less/index.js
@@ -11,7 +11,6 @@ import LessError from './less-error'
 import transformTree from './transform-tree'
 import * as utils from './utils'
 import PluginManager from './plugin-manager'
-import logger from './logger'
 import SourceMapOutput from './source-map-output'
 import SourceMapBuilder from './source-map-builder'
 import ParseTree from './parse-tree'
@@ -54,8 +53,7 @@ export default function (environment, fileManagers) {
     LessError,
     transformTree,
     utils,
-    PluginManager,
-    logger
+    PluginManager
   }
 
   // Create a public API
diff --git a/src/less/logger.js b/src/less/logger.js
deleted file mode 100644
index 3380877..0000000
--- a/src/less/logger.js
+++ /dev/null
@@ -1,34 +0,0 @@
-export default {
-  error: function (msg) {
-    this._fireEvent('error', msg)
-  },
-  warn: function (msg) {
-    this._fireEvent('warn', msg)
-  },
-  info: function (msg) {
-    this._fireEvent('info', msg)
-  },
-  debug: function (msg) {
-    this._fireEvent('debug', msg)
-  },
-  addListener: function (listener) {
-    this._listeners.push(listener)
-  },
-  removeListener: function (listener) {
-    for (let i = 0; i < this._listeners.length; i++) {
-      if (this._listeners[i] === listener) {
-        this._listeners.splice(i, 1)
-        return
-      }
-    }
-  },
-  _fireEvent: function (type, msg) {
-    for (let i = 0; i < this._listeners.length; i++) {
-      const logFunction = this._listeners[i][type]
-      if (logFunction) {
-        logFunction(msg)
-      }
-    }
-  },
-  _listeners: []
-}
diff --git a/src/less/parse-tree.js b/src/less/parse-tree.js
index 5f61540..2ad1a68 100644
--- a/src/less/parse-tree.js
+++ b/src/less/parse-tree.js
@@ -1,6 +1,5 @@
 import LessError from './less-error'
 import transformTree from './transform-tree'
-import logger from './logger'
 
 export default function (SourceMapBuilder) {
   class ParseTree {
@@ -22,7 +21,7 @@ export default function (SourceMapBuilder) {
       try {
         const compress = Boolean(options.compress)
         if (compress) {
-          logger.warn(
+          console.warn(
             'The compress option has been deprecated. ' +
               'We recommend you use a dedicated css minifier, for instance see less-plugin-clean-css.'
           )
diff --git a/src/less/visitors/extend-visitor.js b/src/less/visitors/extend-visitor.js
index bb649c3..b38b1f2 100644
--- a/src/less/visitors/extend-visitor.js
+++ b/src/less/visitors/extend-visitor.js
@@ -4,7 +4,6 @@
  */
 import tree from '../tree'
 import Visitor from './visitor'
-import logger from '../logger'
 import * as utils from '../utils'
 
 /* jshint loopfunc:true */
@@ -144,7 +143,7 @@ class ProcessExtendsVisitor {
 
         if (!indices[`${extend.index} ${selector}`]) {
           indices[`${extend.index} ${selector}`] = true
-          logger.warn(`extend '${selector}' has no matches`)
+          console.warn(`extend '${selector}' has no matches`)
         }
       })
   }