【发布时间】：2022-01-23 22:03:59
【问题描述】：
我正在为期 12 个月的在线学习中学习 Android 开发。在基础知识之后，我的实际主题是调试。我按照我的学习材料开始了第一个简单的 JUnit 测试。我创建了本月书中提到的运行/调试配置（即使布局发生了一些变化）。 然后我只运行了 JUnit 配置。不幸的是，我得到了一堆错误：
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.appcompat:appcompat:1.4.1.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\7c35e9ced6058ee9ee419dce8130dd8e\transformed\appcompat-1.4.1\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.appcompat:appcompat-resources:1.4.1.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\356e9ba54d02d4f62b341e20ec0fc392\transformed\jetified-appcompat-resources-1.4.1\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.emoji2:emoji2-views-helper:1.0.0.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\3c5e58b62ef26f85c19a76a46373f767\transformed\jetified-emoji2-views-helper-1.0.0\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.emoji2:emoji2:1.0.0.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\86bbdb4c704f0c6ef69f85fd6941d5d8\transformed\jetified-emoji2-1.0.0\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.core:core:1.7.0.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\fb3270031bd107031c21c5dc13d9e5ef\transformed\core-1.7.0\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.lifecycle:lifecycle-process:2.4.0.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\60fb03f7868607ff1baa13fa3ab998ab\transformed\jetified-lifecycle-process-2.4.0\META-INF\com\android\build\gradle\aar-metadata.properties.
The minCompileSdk (31) specified in a
dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties)
is greater than this module's compileSdkVersion (android-30).
Dependency: androidx.lifecycle:lifecycle-runtime:2.4.0.
AAR metadata file: C:\Users\there\.gradle\caches\transforms-3\f5b1cf69ca8682e4d6b881300287a614\transformed\lifecycle-runtime-2.4.0\META-INF\com\android\build\gradle\aar-metadata.properties.
我没有更改任何设置或其他内容。我现在太了解配置文件了。 我试图通过谷歌找到解决方案。所以我试图打开“模块设置”。转到“依赖项”并将选项“core-ktx”从 1.7 更改为 1.6。之后我重建项目。但什么都没有改变。
有人会这么好心地向我解释这个问题并建议我一个解决方案吗？我可以而且可能会联系我的课程“远程老师”，因为如果不解决这个问题我就无法继续。但是等待答案可能需要更长的时间，我想继续。
非常感谢！
最好的问候！
【问题讨论】：
-
我将 gradle 文件中的编译和目标 SDK 从 30 更改为 31 + 重建项目。 SDK 31 已安装，现在正在运行。在更新后的 Android Studio 中的一个干净的新项目中，仍然没有真正理解这种冲突来自何处。
标签： android android-studio gradle junit