android – 错误无法解析符号TabLayout和’设计

请帮忙：导入 android.support.design.widget.TabLayout时出错
它说“无法解决符号’设计’

我的build.gradle：

compileSdkVersion 26
     buildToolsversion "26.0.0"

     dependencies {
         compile filetree(dir: 'libs',include: ['*.jar'])
         androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2',{
             exclude group: 'com.android.support',module: 'support-annotations'
         })
         compile 'com.android.support:appcompat-v7:26'
         compile 'com.android.support.constraint:constraint-layout:1.0.2'
         compile 'com.android.support:support-v4:26'
         testCompile 'junit:junit:4.12'
     }

解决方法

你忘了添加设计支持库.只需在gradle app文件中添加此依赖项：

implementation 'com.android.support:design:26.0.+'

Design Support Library

The Design package provides APIs to support adding material design components and patterns to your apps.

The Design Support library adds support for varIoUs material design components and patterns for app developers to build upon,such as navigation drawers,floating action buttons (FAB),snackbars,and TabLayout.

或者AndroidX依赖：

implementation "com.google.android.material:material:1.0.0"