[Fatal Error] gradle-3.2.1.pom:2:1: Content is not allowed in prolog.

[pranavo72bex]

Launching lib\main.dart on SM M127G in debug mode...
[Fatal Error] gradle-3.2.1.pom:2:1: Content is not allowed in prolog.

FAILURE: Build failed with an exception.

• What went wrong:
  A problem occurred configuring project ':flutter_windowmanager'.

Could not resolve all artifacts for configuration ':flutter_windowmanager:classpath'.
Could not resolve com.android.tools.build:gradle:3.2.1.
Required by:
project :flutter_windowmanager
> Could not resolve com.android.tools.build:gradle:3.2.1.
> Could not parse POM https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.pom
> Content is not allowed in prolog.

• 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 1s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
// HOW TO SOLVE THIS ISSUE