diff --git a/cmd/check.go b/cmd/check.go
index 9d7a5b7..1b39800 100644
--- a/cmd/check.go
+++ b/cmd/check.go
@@ -30,7 +30,7 @@ var checkCmd = &cobra.Command{
 	Args: func(cmd *cobra.Command, args []string) error {
 
 		if len(itemId) == 0 {
-			return errors.New("itemId is required")
+			return errors.New("itemid is required")
 		}
 
 		return nil
diff --git a/cmd/legu.go b/cmd/legu.go
index 109373d..32fff6b 100644
--- a/cmd/legu.go
+++ b/cmd/legu.go
@@ -30,21 +30,21 @@ var leguCmd = &cobra.Command{
 	Args: func(cmd *cobra.Command, args []string) error {
 
 		if len(pkgName) == 0 {
-			return errors.New("pkgName is required , like 'com.tx.webchat'")
+			return errors.New("pkgname is required , like 'com.tx.webchat'")
 		}
 
 		if len(pkgMd5) != 32 {
 			if len(pkgMd5) == 0 {
-				return errors.New("pkgMd5 is required")
+				return errors.New("pkgmd5 is required")
 			}
-			return errors.New("pkgMd5 with incorrect length, 32 characters required")
+			return errors.New("pkgmd5 with incorrect length, 32 characters required")
 		}
 		if len(pkgUrl) == 0 {
-			return errors.New("pkgUrl is required")
+			return errors.New("pkgurl is required")
 		}
 		_, err := url.Parse(pkgUrl)
 		if err != nil {
-			return errors.New("pkgUrl with incorrect format")
+			return errors.New("pkgurl with incorrect format")
 		}
 		return nil
 	},
diff --git a/cmd/sign.go b/cmd/sign.go
index 30d978c..a35b7b3 100644
--- a/cmd/sign.go
+++ b/cmd/sign.go
@@ -32,13 +32,13 @@ var signCmd = &cobra.Command{
 	Args: func(cmd *cobra.Command, args []string) error {
 
 		if len(srcPkg) == 0 {
-			return errors.New("srcPkg is required")
+			return errors.New("srcpkg is required")
 		}
 
 		_, err := os.Stat(srcPkg)
 		if err != nil {
 			if !os.IsExist(err) {
-				return errors.New("srcPkg not exist")
+				return errors.New("srcpkg not exist")
 			}
 		}