在项目中找不到任务

我有一个与Gradle相关的问题,我不知道如何解决它…

如果我把这个命令放到我的终端上: gradle --scan :<module A>:debugCompileClasspath

这就是它向我展示的:

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project '<root_project_file>'.
> Could not resolve all files for configuration ':classpath'.
> Could not find gradle-core.jar (com.android.tools.build:gradle-core:3.1.2).
 Searched in the following locations:
     https://plugins.gradle.org/m2/com/android/tools/build/gradle-core/3.1.2/gradle-core-3.1.2.jar
> Could not find layoutlib-api.jar (com.android.tools.layoutlib:layoutlib-api:26.1.2).
 Searched in the following locations:
     https://plugins.gradle.org/m2/com/android/tools/layoutlib/layoutlib-api/26.1.2/layoutlib-api-26.1.2.jar

我怎么解决这个问题?

P.S:我的Gradle Android插件是 3.1.2 和Gradle版本: distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

P.S.2:清除Gradle的缓存,现在这些错误消失了,但我现在有这个问题…… Task 'debugCompileClasspath' not found in project ':<Module_porject>'.