Before installing the plugin make sure that you're using:
First, you will need to configure your TeamCity instance:
Configure integration with JIRA as described here.
If you want to provide TeamCity with access to all JIRA projects, click the Get All Projects link in the window Create New Issue Tracker Connection. Otherwise, specify the projects you want to grant access to in the Project Keys field as shown below. The JIRA user specified in the Username field should have access to relevant JIRA projects. |