發生 Android原先類別 出現 “cannot resolve symbol” 問題，可參考下列網址實作
http://stackoverflow.com/questions/19508649/android-studio-says-cannot-resolve-symbol-but-project-compiles
No idea if this will work or not but my only thought so far: right click the jar file in file tree within AS and select "Add as library..."
EDIT: You can do "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.
EDIT 2: This fix should work for all similar incident
發生 Android原先類別 出現 “cannot resolve symbol” 問題，可參考下列網址實作
http://stackoverflow.com/questions/19508649/android-studio-says-cannot-resolve-symbol-but-project-compiles
No idea if this will work or not but my only thought so far: right click the jar file in file tree within AS and select "Add as library..."
EDIT: You can do "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.
EDIT 2: This fix should work for all similar incidents and is not a twitter4j specific resolution.
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使用Android Studio
File -> Invalidate Caches...." →選擇 Invalidate and Restart