dependencies { implementation 'com.jakewharton:butterknife:10.2.3' annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.3' } android { ... defaultConfig { ... javaCompileOptions { annotationProcessorOptions { arguments = [ 'moduleName': 'yourModuleName' ] } } } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); // ... }