android studio : Could not find org.jetbrains.kotlin:kotlin-stdlib-jre7:1.5.31

插件版本配置：

仓库配置：

ext.kotlin_version = '1.5.31'
repositories {
    maven{ url 'https://maven.aliyun.com/repository/google'}
    maven{ url 'https://maven.aliyun.com/repository/gradle-plugin'}
    maven{ url 'https://maven.aliyun.com/repository/public'}
    maven{ url 'https://maven.aliyun.com/repository/jcenter'}
    google()
    mavenCentral()
    jcenter()
}

依然报错：

Could not find org.jetbrains.kotlin:kotlin-stdlib-jre7:1.5.31.
Searched in the following locations:

• https://maven.aliyun.com/repository/google/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://maven.aliyun.com/repository/gradle-plugin/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://maven.aliyun.com/repository/public/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://maven.aliyun.com/repository/jcenter/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom
• https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jre7/1.5.31/kotlin-stdlib-jre7-1.5.31.pom

阿里云仓库：

https://developer.aliyun.com/mvn/search:

• 搜索kotlin-stdlib-jre7 发现版本最高为：1.2.71 ，无法下载1.5.31版本

mavenCentral仓库：

https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jre7/

发现版本最高为：1.2.71 ，无法下载1.5.31版本

https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jdk7/

发现版本存在为：1.5.31,所以：

# implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
# 将jre7改为jdk7
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

重新编译OK