flutter下，安卓设置启动图报错：A problem occ

FAILURE: Build failed with an exception.

* Where:

Build file '/Users/***/.pub-cache/hosted/pub.flutter-io.cn/amap_core_fluttify-0.6.0+b2681d9/android/build.gradle' line: 53

* What went wrong:

A problem occurred evaluating root project 'amap_core_fluttify'.

> Cannot convert a null value to an object of type Dependency.

  The following types/formats are supported:

    - Instances of Dependency.

    - String or CharSequence values, for example 'org.gradle:gradle-core:1.0'.

    - Maps, for example [group: 'org.gradle', name: 'gradle-core', version: '1.0'].

    - FileCollections, for example files('some.jar', 'someOther.jar').

    - Projects, for example project(':some:project:path').

    - ClassPathNotation, for example gradleApi().

  Comprehensive documentation on dependency notations is available in DSL reference for DependencyHandler type.

* 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: The plugin amap_core_fluttify could not be built due to the issue above.

在android/build.gradle中添加如下即可：

subprojects{

    afterEvaluate{project->

        if (project.hasProperty("android")) {

android{

                compileSdkVersion29

            }

        }

}

}