diff --git a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SerializableDataTypeRegister.java b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SerializableDataTypeRegister.java
index 9fefeddd4..c7ca8fcb5 100644
--- a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SerializableDataTypeRegister.java
+++ b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/SerializableDataTypeRegister.java
@@ -1,6 +1,6 @@
 package com.ai.cloud.skywalking.protocol;
 
-import com.ai.cloud.skywalking.exception.SerializableDataTypeRegisterException;
+import com.ai.cloud.skywalking.protocol.exception.SerializableDataTypeRegisterException;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/common/SpanType.java b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/common/SpanType.java
index 2c90c7c57..f1c9105bc 100644
--- a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/common/SpanType.java
+++ b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/common/SpanType.java
@@ -1,6 +1,6 @@
 package com.ai.cloud.skywalking.protocol.common;
 
-import com.ai.cloud.skywalking.exception.SpanTypeCannotConvertException;
+import com.ai.cloud.skywalking.protocol.exception.SpanTypeCannotConvertException;
 
 /**
  * Created by xin on 16-7-2.
diff --git a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SerializableDataTypeRegisterException.java b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SerializableDataTypeRegisterException.java
similarity index 80%
rename from skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SerializableDataTypeRegisterException.java
rename to skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SerializableDataTypeRegisterException.java
index 82a40e368..2761cfefb 100644
--- a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SerializableDataTypeRegisterException.java
+++ b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SerializableDataTypeRegisterException.java
@@ -1,4 +1,4 @@
-package com.ai.cloud.skywalking.exception;
+package com.ai.cloud.skywalking.protocol.exception;
 
 /**
  * Created by wusheng on 16/7/4.
diff --git a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SpanTypeCannotConvertException.java b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SpanTypeCannotConvertException.java
similarity index 80%
rename from skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SpanTypeCannotConvertException.java
rename to skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SpanTypeCannotConvertException.java
index 3c3c5a1c6..5b54963f6 100644
--- a/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/exception/SpanTypeCannotConvertException.java
+++ b/skywalking-collector/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/exception/SpanTypeCannotConvertException.java
@@ -1,4 +1,4 @@
-package com.ai.cloud.skywalking.exception;
+package com.ai.cloud.skywalking.protocol.exception;
 
 public class SpanTypeCannotConvertException extends RuntimeException {
     public SpanTypeCannotConvertException(String spanTypeValue) {