diff --git a/sdk-bugcollect-plugin/src/main/kotlin/com/xuqm/sdk/bugcollect/gradle/XuqmBugCollectPlugin.kt b/sdk-bugcollect-plugin/src/main/kotlin/com/xuqm/sdk/bugcollect/gradle/XuqmBugCollectPlugin.kt
index 1980ac8..41ec718 100644
--- a/sdk-bugcollect-plugin/src/main/kotlin/com/xuqm/sdk/bugcollect/gradle/XuqmBugCollectPlugin.kt
+++ b/sdk-bugcollect-plugin/src/main/kotlin/com/xuqm/sdk/bugcollect/gradle/XuqmBugCollectPlugin.kt
@@ -3,7 +3,6 @@ package com.xuqm.sdk.bugcollect.gradle
 import com.android.build.api.artifact.SingleArtifact
 import com.android.build.api.dsl.ApplicationExtension
 import com.android.build.api.variant.ApplicationAndroidComponentsExtension
-import com.android.build.api.variant.BuildConfigField
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import java.io.File
@@ -96,10 +95,9 @@ class XuqmBugCollectPlugin : Plugin<Project> {
 
             // Generate a per-build identifier stamped at configuration time.
             val buildId = SimpleDateFormat("yyyyMMddHHmmss", Locale.US).format(Date())
-            variant.buildConfigFields?.put(
-                "XUQM_BUILD_ID",
-                BuildConfigField("String", "\"$buildId\"", "XuqmGroup BugCollect build ID")
-            )
+            // Inject via manifestPlaceholders — SDK reads it from ApplicationInfo.metaData.
+            // This avoids the namespace vs applicationId mismatch of BuildConfig reflection.
+            variant.manifestPlaceholders.put("xuqmBuildId", buildId)
 
             val configFile = findVariantConfigFile(target.projectDir, variant.flavorName, variant.buildType)
             val (fileAppKey, filePlatformUrl) = when {
diff --git a/sdk-bugcollect/src/main/AndroidManifest.xml b/sdk-bugcollect/src/main/AndroidManifest.xml
index d1cb683..39bed9d 100644
--- a/sdk-bugcollect/src/main/AndroidManifest.xml
+++ b/sdk-bugcollect/src/main/AndroidManifest.xml
@@ -1,7 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
-    <!--
-        BugCollectInitProvider 已移除 — ContentProvider 框架开销 ~380ms。
-        改为在 XuqmSDK 初始化完成后通过 afterInit 回调注册崩溃拦截器。
-    -->
+    <application>
+        <!--
+            Build ID injected by the XuqmGroup BugCollect Gradle plugin at compile time.
+            The plugin fills ${xuqmBuildId} via variant.manifestPlaceholders.
+            SDK reads it via PackageManager.getApplicationInfo(GET_META_DATA).
+        -->
+        <meta-data
+            android:name="com.xuqm.build_id"
+            android:value="${xuqmBuildId}" />
+    </application>
 </manifest>
diff --git a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
index dae2345..2649f53 100644
--- a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
+++ b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
@@ -242,15 +242,13 @@ object BugCollect {
         ctx.packageManager.getPackageInfo(ctx.packageName, 0).versionName ?: "unknown"
     }.getOrDefault("unknown")
 
-    /**
-     * Read the build ID injected by the XuqmGroup BugCollect Gradle plugin.
-     * The plugin injects BuildConfig.XUQM_BUILD_ID (format yyyyMMddHHmmss) into the app at compile time.
-     * We access it via reflection so the SDK doesn't depend on the app's BuildConfig class directly.
-     */
     private fun buildId(): String? = runCatching {
         if (!XuqmSDK.isInitialized()) return null
-        val pkg = XuqmSDK.appContext.packageName
-        Class.forName("$pkg.BuildConfig").getField("XUQM_BUILD_ID").get(null) as? String
+        val ctx = XuqmSDK.appContext
+        val appInfo = ctx.packageManager.getApplicationInfo(
+            ctx.packageName, android.content.pm.PackageManager.GET_META_DATA
+        )
+        appInfo.metaData?.getString("com.xuqm.build_id")
     }.getOrNull()
 
     private fun buildDeviceInfo(): IssueEvent.DeviceInfo {