How to Solve Dropbox {“error”: “v1_retired”} for the Dropbox API in ruby on rails

def passport_upload doc
    # begin

        app_key = ENV['WINGBE_DROPBOX_APP_KEY_DEVELOPMENT'] 
        app_secret = ENV['WINGBE_DROPBOX_APP_SECRET_DEVELOPMENT']
        p "=========#{app_key}===#{app_secret}========="    
        flow = DropboxOAuth2FlowNoRedirect.new(app_key, app_secret)
        authorize_url = flow.start()
        client = DropboxClient.new(ENV['WINGBE_DROPBOX_ACCESS_TOKEN_DEVELOPMENT'])          
        file = open(params[:doc])
        file_name = params[:doc].original_filename 
        response = client.put_file(file_name, file)
        # response = client.put_file('file_name', open('file'))
        client.shares(response['path'])
    # rescue
    # end   
end

Useing dropbox api through upload the any file on dropbox got error Dropbox {“error”: “v1_retired”} How to resolve it.