diff --git a/index.js b/index.js
index 9df8d76..07626fa 100644
--- a/index.js
+++ b/index.js
@@ -13,12 +13,11 @@ import Ioredis from 'ioredis'
 import Request from '@gm5/request'
 import Response from '@gm5/response'
 import Cookie from '@gm5/cookie'
-import Session from '@gm5/session'
+// import Session from '@gm5/session'
 
 import init from './lib/reg-init.js'
 import Log from './lib/log.js' //基础日志记录工具
 
-
 import routerWare from './middleware/router.js'
 import credentialsWare from './middleware/credentials.js'
 // import cookieWare from './middleware/cookie.js'
diff --git a/lib/log.js b/lib/log.js
index 1ffee17..e9cd8a5 100644
--- a/lib/log.js
+++ b/lib/log.js
@@ -8,7 +8,7 @@ import fs from 'iofs'
 import path from 'path'
 
 export default class Log {
-  constructor(file = 'run_time.log', dir) {
+  constructor(file = 'run_time.log', dir = './') {
     if (!dir) {
       throw new Error(`agument dir must be a string, but ${typeof dir} given.`)
     }
diff --git a/package.json b/package.json
index 3083d07..8597853 100644
--- a/package.json
+++ b/package.json
@@ -13,9 +13,6 @@
     "crypto.js": "^2.0.1",
     "es.shim": "^2.0.0",
     "iofs": "^2.0.0"
-    // "ioredis": "^3.2.2",
-    // "mysqli": "^3.0.11",
-    // "smartyx": "^1.3.1"
   },
   "devDependencies": {},
   "repository": {