How to Fix Flutter AAPT Error property in manifest | Cloud Firestore Build Issue

✅ Fixing Manifest property Error and :cloud_firestore Project Configuration Issue in Android
🔥 Common Issues:
A problem occurred configuring project ':cloud_firestore'.

Manifest merger failed: unexpected element property found in manifest application.

These issues usually occur when you're using an outdated Android Gradle Plugin (AGP) version that doesn’t recognize newer manifest elements like queries, introduced in Android 11.

🧠 Why This Happens:
The Android Gradle Plugin is responsible for the manifest merger process, where it combines the main app manifest with manifests from libraries and dependencies.

When AGP encounters unknown elements like queries or property, which were not defined in older plugin versions, it throws an error.

Even updating a single dependency (e.g., cloud_firestore) may introduce such elements via its own manifest, leading to build failures — even if your own code hasn't changed.

✅ The Solution:
Upgrade the Android Gradle Plugin to a version that supports newer manifest elements. Google has released patch versions specifically to address this issue.

Here are the recommended minimum safe versions:

Your AGP Series Upgrade To This Version
3.3.* ✅ 3.3.3
3.4.* ✅ 3.4.3
3.5.* ✅ 3.5.4
3.6.* ✅ 3.6.4
4.0.* ✅ 4.0.1

If you’re already using Android Studio 4.1 or higher, along with its matching plugin version (4.1.* or above), no further changes are required — these versions are already aware of queries and other new manifest tags.

🧱 How to Apply the Fix:
In your android/build.gradle (project-level), update:
buildscript {
dependencies {
classpath 'com.android.tools.build:gradle:7.0.4' // ✅ Safe patch version
}
}

And in your gradle/wrapper/gradle-wrapper.properties, ensure:

distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip
(Adjust the Gradle version based on your AGP version (see compatibility table if needed).

✅ Why This Matters:
Resolves build-time errors related to manifest merging.

Prevents crashes when using libraries like cloud_firestore that rely on modern manifest features.

Ensures compatibility with Android 11+ and modern dependencies.

Keeps your Flutter or native Android project stable during dependency upgrades.

for you information:
my Dart: 2.18.0 and flutter 3.3.0

Видео How to Fix Flutter AAPT Error property in manifest | Cloud Firestore Build Issue канала Rajaku