General Issue:-
It can occur because AS was checking availability of the Instant Run feature. The fixed is to disable Instant Run:
Windows & Linux:
File -> Settings -> Build, Execution, Deployment -> Instant Run.
Mac:
Android Studio -> Preferences -> Build, Execution, Deployment -> Instant Run.
Thanks to @pophus for mentioning this.
Use this Steps If you are using a butterknife:-
If you are using the new Jack compiler with version 2.2.0 or newer, you do not need the 'android-apt' plugin and can instead replace apt with annotationProcessor when declaring the compiler dependency.
That is, remove
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
from your main gradle file
And remove
apply plugin: 'android-apt'
from your main module file
and replace
apt 'com.jakewharton:butterknife-compiler:8.4.0'
with
annotationProcessor 'com.jakewharton:butterknife-compiler:8.4.0'
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