我在我的应用级build.gradle中遇到错误，在我使用的第一个支持库上，它告诉我所有com.android.support库必须使用完全相同的版本规范并且它＆ ＃39;发现版本27.1.1和26.0.2。在我的app级build.gradle中，没有使用26.1.0的行。此外，所有compile语句都已更改为implementation，compileSdkVersion为27，targetSdkVersion为27.要尝试查找罪魁祸首，我跑了：
./gradlew -q dependencies app:dependencies --configuration debugAndroidTestCompileClasspath
得到以下输出：
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
------------------------------------------------------------
Root project
------------------------------------------------------------
No configurations
------------------------------------------------------------
Project :app
------------------------------------------------------------
debugAndroidTestCompileClasspath - Resolved configuration for compilation for variant: debugAndroidTest
+--- com.android.support.test:runner:1.0.1
| +--- com.android.support:support-annotations:25.4.0 -> 27.1.1
| +--- junit:junit:4.12
| | \--- org.hamcrest:hamcrest-core:1.3
| \--- net.sf.kxml:kxml2:2.3.0
+--- com.android.support.test.espresso:espresso-core:3.0.1
| +--- com.android.support.test:runner:1.0.1 (*)
| +--- com.android.support.test:rules:1.0.1
| | \--- com.android.support.test:runner:1.0.1 (*)
| +--- com.android.support.test.espresso:espresso-idling-resource:3.0.1
| +--- com.squareup:javawriter:2.1.1
| +--- javax.inject:javax.inject:1
| +--- org.hamcrest:hamcrest-library:1.3
| | \--- org.hamcrest:hamcrest-core:1.3
| +--- org.hamcrest:hamcrest-integration:1.3
| | \--- org.hamcrest:hamcrest-library:1.3 (*)
| \--- com.google.code.findbugs:jsr305:2.0.1
+--- com.android.support:appcompat-v7:27.1.1
| +--- com.android.support:support-annotations:27.1.1
| +--- com.android.support:support-core-utils:27.1.1
| | +--- com.android.support:support-annotations:27.1.1
| | \--- com.android.support:support-compat:27.1.1
| | +--- com.android.support:support-annotations:27.1.1
| | \--- android.arch.lifecycle:runtime:1.1.0
| | +--- android.arch.lifecycle:common:1.1.0
| | \--- android.arch.core:common:1.1.0
| +--- com.android.support:support-fragment:27.1.1
| | +--- com.android.support:support-compat:27.1.1 (*)
| | +--- com.android.support:support-core-ui:27.1.1
| | | +--- com.android.support:support-annotations:27.1.1
| | | +--- com.android.support:support-compat:27.1.1 (*)
| | | \--- com.android.support:support-core-utils:27.1.1 (*)
| | +--- com.android.support:support-core-utils:27.1.1 (*)
| | +--- com.android.support:support-annotations:27.1.1
| | +--- android.arch.lifecycle:livedata-core:1.1.0
| | | +--- android.arch.lifecycle:common:1.1.0
| | | +--- android.arch.core:common:1.1.0
| | | \--- android.arch.core:runtime:1.1.0
| | | \--- android.arch.core:common:1.1.0
| | \--- android.arch.lifecycle:viewmodel:1.1.0
| +--- com.android.support:support-vector-drawable:27.1.1
| | +--- com.android.support:support-annotations:27.1.1
| | \--- com.android.support:support-compat:27.1.1 (*)
| \--- com.android.support:animated-vector-drawable:27.1.1
| +--- com.android.support:support-vector-drawable:27.1.1 (*)
| \--- com.android.support:support-core-ui:27.1.1 (*)
+--- com.android.support:design:27.1.1
| +--- com.android.support:support-v4:27.1.1
| | +--- com.android.support:support-compat:27.1.1 (*)
| | +--- com.android.support:support-media-compat:27.1.1
| | | +--- com.android.support:support-annotations:27.1.1
| | | \--- com.android.support:support-compat:27.1.1 (*)
| | +--- com.android.support:support-core-utils:27.1.1 (*)
| | +--- com.android.support:support-core-ui:27.1.1 (*)
| | \--- com.android.support:support-fragment:27.1.1 (*)
| +--- com.android.support:appcompat-v7:27.1.1 (*)
| +--- com.android.support:recyclerview-v7:27.1.1
| | +--- com.android.support:support-annotations:27.1.1
| | +--- com.android.support:support-compat:27.1.1 (*)
| | \--- com.android.support:support-core-ui:27.1.1 (*)
| \--- com.android.support:transition:27.1.1
| +--- com.android.support:support-annotations:27.1.1
| \--- com.android.support:support-compat:27.1.1 (*)
+--- com.android.support.constraint:constraint-layout:1.1.0
| \--- com.android.support.constraint:constraint-layout-solver:1.1.0
+--- com.android.support:support-vector-drawable:27.1.1 (*)
+--- com.android.support:support-v4:27.1.1 (*)
+--- com.android.support:cardview-v7:27.1.1
| \--- com.android.support:support-annotations:27.1.1
+--- com.android.support:recyclerview-v7:27.1.1 (*)
+--- com.google.android.gms:play-services-ads:15.0.0
| +--- com.android.support:customtabs:26.1.0
| | +--- com.android.support:support-compat:26.1.0 -> 27.1.1 (*)
| | \--- com.android.support:support-annotations:26.1.0 -> 27.1.1
| +--- com.google.android.gms:play-services-ads-base:[15.0.0] -> 15.0.0
| +--- com.google.android.gms:play-services-ads-identifier:[15.0.0,16.0.0) -> 15.0.0
| | \--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0
| | \--- com.android.support:support-v4:26.1.0 -> 27.1.1 (*)
| +--- com.google.android.gms:play-services-ads-lite:[15.0.0] -> 15.0.0
| | +--- com.google.android.gms:play-services-ads-base:[15.0.0] -> 15.0.0
| | \--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| \--- com.google.android.gms:play-services-gass:[15.0.0] -> 15.0.0
| +--- com.google.android.gms:play-services-ads-base:[15.0.0] -> 15.0.0
| \--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
+--- com.google.firebase:firebase-core:15.0.0
| \--- com.google.firebase:firebase-analytics:[15.0.0,16.0.0) -> 15.0.0
| +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.android.gms:play-services-measurement-base:[15.0.0] -> 15.0.0
| +--- com.google.android.gms:play-services-stats:[15.0.0,16.0.0) -> 15.0.0
| | \--- com.google.android.gms:play-services-basement:[15.0.0] -> 15.0.0 (*)
| +--- com.google.firebase:firebase-analytics-impl:[15.0.0] -> 15.0.0
| | +--- com.google.android.gms:play-services-ads-identifier:[15.0.0,16.0.0) -> 15.0.0 (*)
| | +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| | +--- com.google.android.gms:play-services-measurement-base:[15.0.0] -> 15.0.0
| | +--- com.google.android.gms:play-services-stats:[15.0.0,16.0.0) -> 15.0.0 (*)
| | +--- com.google.android.gms:play-services-tasks:[15.0.0,16.0.0) -> 15.0.0
| | | \--- com.google.android.gms:play-services-basement:[15.0.0] -> 15.0.0 (*)
| | +--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0
| | | +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| | | \--- com.google.android.gms:play-services-tasks:[15.0.0,16.0.0) -> 15.0.0 (*)
| | \--- com.google.firebase:firebase-iid:[15.0.0] -> 15.0.0
| | +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| | +--- com.google.android.gms:play-services-measurement-base:[15.0.0] -> 15.0.0
| | +--- com.google.android.gms:play-services-stats:[15.0.0,16.0.0) -> 15.0.0 (*)
| | +--- com.google.android.gms:play-services-tasks:[15.0.0,16.0.0) -> 15.0.0 (*)
| | \--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0 (*)
| \--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0 (*)
+--- com.google.firebase:firebase-database:15.0.0
| +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.android.gms:play-services-tasks:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-database-collection:[15.0.0,16.0.0) -> 15.0.0
| | \--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| \--- com.google.firebase:firebase-database-connection:[15.0.0] -> 15.0.0
| +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-analytics:[15.0.0,16.0.0) -> 15.0.0 (*)
| \--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0 (*)
+--- com.google.firebase:firebase-firestore:15.0.0
| +--- com.google.android.gms:play-services-basement:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.android.gms:play-services-tasks:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-analytics:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-common:[15.0.0,16.0.0) -> 15.0.0 (*)
| +--- com.google.firebase:firebase-database-collection:[15.0.0,16.0.0) -> 15.0.0 (*)
| \--- com.squareup.okhttp:okhttp:2.7.2
| \--- com.squareup.okio:okio:1.6.0
+--- com.aurelhubert:ahbottomnavigation:2.1.0
| \--- com.android.support:design:25.3.1 -> 27.1.1 (*)
+--- com.github.bumptech.glide:glide:4.5.0
| +--- com.github.bumptech.glide:gifdecoder:4.5.0
| | \--- com.android.support:support-annotations:27.0.2 -> 27.1.1
| +--- com.github.bumptech.glide:disklrucache:4.5.0
| +--- com.github.bumptech.glide:annotations:4.5.0
| \--- com.android.support:support-fragment:27.0.2 -> 27.1.1 (*)
+--- de.hdodenhof:circleimageview:2.2.0
+--- me.tankery.lib:circularSeekBar:1.1.4
+--- com.github.fiskurgit:ChipCloud:3.0.5
| \--- com.android.support:appcompat-v7:25.1.1 -> 27.1.1 (*)
\--- com.google.android:flexbox:0.3.2
(*) - dependencies omitted (listed previously)
此处显示com.android.support:customtabs:26.1.0中的com.google.android.gms:play-services-ads:15.0.0正在使用26.1.0，但在下钻时它有-> 27.1.1 (*)，我假设它意味着它使用了27.1 .1相反？我在游戏服务中从com.android.support:support-v4:26.1.0得到同样的东西。可能导致此错误的原因是什么？
答案 0 :(得分：26)
该行
+--- com.android.support:customtabs:26.1.0
在它的末尾没有-> 27.1.1，这意味着它没有自动升级到27.1.1（它显示在传递依赖项下，因为那些传递依赖是自动升级）。
您可以通过手动将该依赖项添加到27.1.1文件来强制它使用build.gradle版本：
implementation 'com.android.support:customtabs:27.1.1'
答案 1 :(得分：1)
您可以在app.iml文件中搜索不匹配的版本号（26.1.0），并可以在app level build.gradle中添加这些依赖项，强制使用最新版本（本例中为27.1.1）