Hello it happens that I have a project created in android 2.3.3 but the most recent version is 3.1.3 and it does not let me run the project, it sends me the error below. I already test with different cell phones with more updated versions of android but it keeps sending that error and redirects me to the android documentation where it says that it should be migrated to the most updated version of android because as I said, the project was created in version 2.3. 3 and now I've updated to 3.1.3 and I do not understand anything.
Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration. - butterknife-6.1.0.jar (com.jakewharton:butterknife:6.1.0) Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior. Note that this option is deprecated and will be removed in the future. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.
instant run is not supported on devices with api levels 20 or lower