Cannot resolve symbol @android:color/white anymore

Question

But the application is not compiling.

I don't know what can I do?

• I am try to clean project
• I am try build project
• I am restart mac

And so on,but this steps don't help me. Who can help me? Thank you

Answer 1

Simply write this:

android:background="#ffffff"

Answer 2

If the resource already exists in colors.xml file, try Invalid Caches / Restart

Answer 3

you can give color manually like

"#ffffff"

or create color in colors file like

<color name="white">#FFFFFF</color>

and then

    android:background="@color/white"