解决“NOTE: One or more layouts are missing the layout_width or layout_height attributes.”

布局无法加载，xml也没有错误，提示NOTE: One or more layouts are missing the layout_width or layout_height attributes. These are required in most layouts

关闭Android Studio
进入C:\Users\UserName\ .android目录，将build-cache重命名为buildcache.bak
进入C:\Users\UserName\ .AndroidStudio3.2\system 目录
(1) caches 重命名为 caches.bak
(2) compiler 重命名为 compiler.bak
(3) compile-server 重命名为 compile-server.bak
(4) conversion 重命名为 conversion.bak
(5) external_build_system 重命名为 external_build_system.bak
(6) frameworks 重命名为 frameworks.bak
(7) gradle 重命名为 gradle.bak
(8) resource_folder_cache 重命名为 resource_folder_cache.bak

启动Android Studio打开你的项目，问题就解决了

以下是stackoverflow原答案：
The issue is resolved by these changes:

Close Android Studio
Go to C:\Users\UserName.android and rename the build-cache folder to buildcache.bak
Go to C:\Users\UserName.AndroidStudio3.2\system and rename these folders

(1) caches to caches.bak
(2) compiler to compiler.bak
(3) compile-server to compile-server.bak
(4) conversion to conversion.bak
(5) external_build_system to external_build_system.bak
(6) frameworks to frameworks.bak
(7) gradle to gradle.bak
(8) resource_folder_cache to resource_folder_cache.bak

Open the Android Studio and open your project again.
 

转载这位大哥的，我也遇到这个问题了布局没有错误但就是不显示，

https://blog.csdn.net/u012833250/article/details/83785298