Hello, I am Sivadas. I have 6 year experience in Android, iOS, PHP, HTML, wordpress and Javascript. Did you mean API7 (Java Platform SE 7) or the Android application package (APK) by saying apk7? It is not clear for me. Please contact me and provide the details. I can fix the errors in Android, Java and any website related works. If the work is less, then I can also reduce the bid to minimum. Please provide me the details about error messages. You have not provided any details. Please contact me and provide the details.