运行Flutter应用时遇Gradle构建失败：firebase_core清单解析异常

运行Flutter应用时遭遇Gradle构建失败，具体错误如下：

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':firebase_core:processDebugManifest'.

org.xml.sax.SAXParseException; systemId: file:/Users/user/development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-1.17.1/android/src/main/AndroidManifest.xml; lineNumber: 11; columnNumber: 12; Content is not allowed in trailing section.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 23s
Exception: Gradle task assembleDebug failed with exit code 1

错误源于firebase_core-1.17.1的AndroidManifest.xml文件格式异常，根标签</manifest>尾部存在多余内容。以下是解决步骤：

• 修复AndroidManifest.xml文件
  找到路径/Users/user/development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-1.17.1/android/src/main/AndroidManifest.xml，打开后检查第11行附近，删除</manifest>标签之后的所有多余字符、空格或代码，确保文件以该标签结尾且无后续内容。

• 清理缓存并重新获取依赖
  执行命令：

  flutter clean
  flutter pub get
  

• 升级firebase_core版本
  在项目的pubspec.yaml中，将firebase_core的版本替换为最新稳定版（例如firebase_core: ^2.15.0），然后执行flutter pub get拉取新依赖。

• 重新构建项目
  执行flutter run重新运行应用，验证问题是否解决。

内容的提问来源于stack exchange，提问作者Lets Done This