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kotlinlang

Just a question, when I convert a Java file to Kotlin, I made my modifications, etc, but when I run the app and access to my Activity refactored, I have an error  `java.lang.NoSuchFieldError: No instance field mInternalEmpty of type ...  or its superclasses (declaration of ... appears in /... base.apk) ` The only solution I found is to clean and assembleDebug my project. There is another solution? Everything work after my clean command