diff --git a/apps/yms/app/src/main/java/org/onosproject/yms/app/yob/exception/package-info.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/yob/exception/package-info.java
new file mode 100644
index 0000000..bfd1528
--- /dev/null
+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/yob/exception/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * YANG object builder exceptions.
+ */
+package org.onosproject.yms.app.yob.exception;