Java Android Studio 设计编辑器在项目同步成功后才可用
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Android studio design editor is unavailable until after a successful project sync
提问by Eman Fateen
what is the actual root cause of this issue? I already sync with gradle files but eventually failed.
这个问题的真正根本原因是什么？我已经与 gradle 文件同步，但最终失败了。
采纳答案by Ridha Rezzag
Just sync your project with gradles. File --> Sync Project with Gradle Files
只需将您的项目与 gradle 同步。文件 --> 将项目与 Gradle 文件同步
回答by Prasad Jayathilake
Issue happened to me when I changed the res>values>styles.xml
当我更改时，问题发生在我身上 res>values>styles.xml
What I change was"Theme.AppCompat.Light.DarkActionBar"--->>> "Base.Theme.AppCompat.Light.DarkActionBar"
我改变的是"Theme.AppCompat.Light.DarkActionBar"--->>>"Base.Theme.AppCompat.Light.DarkActionBar"
Solutions I tried.
我试过的解决方案。
- Build -> Rebuild Project (Not worked)
- Close all files and Open again. Then Build -> Clean Project (Not worked) File -> Sync project with gradle files (Not worked)
- Close the Android Studio while project still opened. Opened it again. - It Worked.
- 构建 -> 重建项目（无效）
- 关闭所有文件并再次打开。然后 Build -> Clean Project (Not work) File -> Sync project with gradle files (Not work)
- 在项目仍处于打开状态时关闭 Android Studio。又打开了。- 有效。
回答by Abdullah Almasud
- Build -> Clean Project
- Build -> Rebuild Project
File -> Sync project with gradle files . If not worked then try
File -> Invalidate Caches / Restart .
- 构建 -> 清理项目
- 构建 -> 重建项目
文件 -> 将项目与 gradle 文件同步。如果不起作用，请尝试
File -> Invalidate Caches / Restart 。
It's work for me !!!
这对我有用！！！
回答by cesards
That could be fixed in one or two steps, depending on how nice is Android Studio today:
这可以通过一两个步骤来解决，具体取决于今天的 Android Studio 有多好：
- Try to sync your project with gradle files:
- 尝试将您的项目与 gradle 文件同步：
- If that doesn't work, invalidate Android Studio caches and restart. That should fix the problem:
- 如果这不起作用，请使 Android Studio 缓存无效并重新启动。这应该可以解决问题：
The reason behind the first solution not working could be related on gradle cached dependencies problems, but who knows
第一个解决方案不起作用的原因可能与 gradle 缓存依赖项问题有关，但谁知道
回答by Moment Mnt
Just you have to do >> open File --> Sync Project with Gradle Files and then after >> open File --> invalidate Android Studio caches / restart so done this problem.:)
只是你必须做 >> 打开文件 --> 将项目与 Gradle 文件同步，然后在 >> 打开文件 --> 使 Android Studio 缓存无效/重新启动，这样就解决了这个问题。:)
回答by ABHISHEK RAJ
If nothing of the above steps work, Then simply undo the changes that you have recently made, and then build gradle. In my case, I have added one dependencies and this problem raised, so I removed that dependencies build the gradle and then again add it. Problem Solved..!!
如果以上步骤都不起作用，那么只需撤消您最近所做的更改，然后构建 gradle。就我而言，我添加了一个依赖项并引发了此问题，因此我删除了该依赖项构建了 gradle，然后再次添加它。问题解决了..！！
