Android bug篇(一) design editor is unavailable until after a successful project sync

Android bug篇(一) design editor is unavailable until after a successful project sync

解决方案(一)

File --> Sync Project with Gradle Files
Android bug篇(一) design editor is unavailable until after a successful project sync

解决方案(二)

Build -> Clean Project
Android bug篇(一) design editor is unavailable until after a successful project sync

Build -> Rebuild Project
Android bug篇(一) design editor is unavailable until after a successful project sync

**File -> Sync project with gradle files **
Android bug篇(一) design editor is unavailable until after a successful project sync
File -> Invalidate Caches / Restart .

Android bug篇(一) design editor is unavailable until after a successful project sync

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