error: failed linking references. -> QueuedJob

Question

I was studying the Android Material Design using Kotlin and everything was going fine until I tried to use the android.support.design.widget.FloatingActionButton.

Answer 1

You were referencing an attribute "textColor", when it should be "android:textColor".
In app/src/main/res/values/styles.xml replace in line 13 and line 17:

... -> ...

The how: the error from AAPT stated the following:

error: style attribute 'attr/textColor (aka br.com.conseng.themedesign:attr/textColor)' not found.

It points out that you (or your libraries) are using an attribute somewhere that is not recognized. I searched for "textColor" in your repository and came up with the two attributes with the name "textColor". The widely used attribute is "android:textColor" and you didn't define the attribute "textColor" anywhere yourself, so it looked like you were missing the "android:" prefix.