diff --git a/base/pkg_version.go b/base/pkg_version.go
new file mode 100644
index 0000000..bd47c3f
--- /dev/null
+++ b/base/pkg_version.go
@@ -0,0 +1,16 @@
+package base
+
+type PkgVersion struct {
+	Name              string   `db:"pkg"`
+	Bundle            string   `db:"bundle"`
+	Hash              string   `db:"hash"`
+	FileName          string   `db:"filename"`
+	SourceMapFileName string   `db:"sourcemapFileName"`
+	Imports           []string `db:"imports"`
+	VersionAt         string   `db:"version_at"`
+}
+
+func (this PkgVersion) GetFile() []byte
+func (this PkgVersion) GetSourceMap() []byte
+
+type GetPkgVersion func(pkg string) (PkgVersion, bool)
diff --git a/errno.go b/errno.go
index 35bc296..77c6c7b 100644
--- a/errno.go
+++ b/errno.go
@@ -101,6 +101,7 @@ var (
 	// 请求第三个接口
 	ErrApiRequest   = &Errno{Code: 20501, Msg: "Api Request Error"}
 	ErrApiResponsed = &Errno{Code: 20502, Msg: "Api Responsed Error"}
+	ErrApiAuth      = &Errno{Code: 20503, Msg: "Api Auth Error"}
 
 	// 验证码错误,206
 	ErrCaptcha         = &Errno{Code: 20601, Msg: "验证码生成器不存在"}
@@ -110,7 +111,14 @@ var (
 	ErrCaptchaSend     = &Errno{Code: 20605, Msg: "验证码发送错误"}
 	ErrCaptchaInterval = &Errno{Code: 20606, Msg: "验证码获取失败, 请稍后再试"}
 
-	//
+	// Pkg 错误
+	ErrPkgUnknown         = &Errno{Code: 20701, Msg: "pkg unknown"}
+	ErrPkgInvalid         = &Errno{Code: 20702, Msg: "pkg invalid"}
+	ErrPkgPlatformInvalid = &Errno{Code: 20703, Msg: "pkg platform invalid"}
+	ErrPkgUpgrade         = &Errno{Code: 20704, Msg: "pkg upgrade fail"}
+	ErrPkgDownload        = &Errno{Code: 20705, Msg: "pkg download fail"}
+	ErrPkgUpload          = &Errno{Code: 20706, Msg: "pkg upload fail"}
+	ErrPkgBuild           = &Errno{Code: 20707, Msg: "pkg build fail"}
 )
 
 // 使用 错误码 和 error 创建新的 错误