diff --git a/lservice/src/main/java/io/github/houvven/lservice/LServiceBridge.java b/lservice/src/main/java/io/github/houvven/lservice/LServiceBridge.java
index 5ca9acd..6b90857 100644
--- a/lservice/src/main/java/io/github/houvven/lservice/LServiceBridge.java
+++ b/lservice/src/main/java/io/github/houvven/lservice/LServiceBridge.java
@@ -30,6 +30,9 @@ public LServiceBridge(Context ctx, String apkPath) {
         this.pm = ctx.getPackageManager();
         try {
             int uid = getUid(apkPath);
+            if (uid == -1) {
+                throw new RuntimeException("get uid failed.");
+            }
             Os.setuid(uid);
             if (isInstalledAutomatically) {
                 // 异步执行