我正在学习android studio并尝试从一个新项目开始，但是我遇到了一些依赖问题
Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)
<a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.test.ext:junit:1.1.0.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.test.ext:junit:1.1.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.test.espresso:espresso-core:3.1.1.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.test.espresso:espresso-core:3.1.1.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)
<a href="Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.fragment:fragment:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.2.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve androidx.versionedparcelable:versionedparcelable:1.0.0.">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download core.aar (androidx.core:core:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download collection.jar (androidx.collection:collection:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-runtime.aar (androidx.lifecycle:lifecycle-runtime:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-common.jar (androidx.lifecycle:lifecycle-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download core-common.jar (androidx.arch.core:core-common:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download lifecycle-viewmodel.aar (androidx.lifecycle:lifecycle-viewmodel:2.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)
<a href="Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not download annotation.jar (androidx.annotation:annotation:1.0.0)">Show Details</a>
Affected Modules: <a href="openFile:C:/Users/ihass/AndroidStudioProjects/MyApplication3/app/build.gradle">app</a>
答案 0 :(得分：0)
尝试重新安装依赖项，请查看Android入门页面： https://developer.android.com/training/basics/firstapp 访问创建Android项目。 就您而言，您只需要一个正确的设置即可。此时请勿绕过步骤。
答案 1 :(得分：0)
尝试以下步骤：在设置中禁用Gradle离线工作。
转到“文件”->“其他设置”->“默认设置”->“构建，执行，部署”->“构建工具”->“等级”->“取消选中脱机工作选项”。
按照Google Build的第一个应用链接进行操作，并逐步进行操作。
链接1：https://developer.android.com/training/basics/firstapp
link2：https://www.androidauthority.com/android-studio-tutorial-beginners-637572/
答案 2 :(得分：0)
如果您不想暂时使用appcompat库，可以解决该问题： 实现'androidx.appcompat：appcompat：1.1.0' 只需删除此行即可。