Firestore error in android studio

Lets resolve *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

I am ready to assist you on the immediate basis to develop native apps for both Android/iPhone platforms. If you have prepared any feature listing doc than please share with me or share reference app. I am expert in SWIFT, Core Java, OOPS, Android Development, Eclipse, Android Studio, Web Services, Social API Integration, Parse Integration, Google API, Google Maps, Google Analytics, OTP verification, 3rd Party API, JSON Parsing, XML Parsing, Custom Camera, Push Notifications. Backend: MYSQL i am looking forward to hearing from you!! I am ready to start work immediately and assure high-quality results. I am expecting a small chat session and finalize the details, please confirm your online availability. Chat session will really help me in understanding the project requirements and I would be able to start work on it right away. Hope to connect with you soon!!!

I can do it immediately... I can start the work immediately.... please do reply back to me......

I am an experienced Android app developer and I have integrated firebase in various APIs. I deliver quick and quality results. Thank you

Hi, I'm an Android Developer and I can connect your Firebase to your application. I worked on Firebase Authentication, Real-time Database, Firebase Cloud Messaging (Notifications) and Firebase Storage as well. I'm familiar with all this. If you're interested you can hire me anytime. Thank You, Rakesh Mandhan

I am an android developer and use firebase as a backend for all of my projects.i have experience of over a year with firebase