diff --git a/src/main/java/packet/MINPacket.java b/src/main/java/packet/MINPacket.java
index 22a2b6c..7135902 100644
--- a/src/main/java/packet/MINPacket.java
+++ b/src/main/java/packet/MINPacket.java
@@ -115,7 +115,13 @@ public class MINPacket implements IEncodingAble {
         int elementSize=block.getSubElements().length();
         for (int i=0;i<elementSize;i++) {
             Block cacheBlock=block.getSubElements().getBlock(i);
-            switch (cacheBlock.getType().getVlIntValue2Int()){
+            int judgeType= 0;
+            try {
+                judgeType = cacheBlock.getType().getVlIntValue2Int();
+            } catch (VlIntException e) {
+                throw new Error("MINPacket.wireDecode: "+e.getMessage());
+            }
+            switch (judgeType){
                 case TLV.TlvIdentifierField: // 目的标识区
                     // 解析标识区，保证其中至少存在一个标识
                     if(!cacheBlock.parseSubElements()){