1. Overview

If any problems arise or if you are unable to access FusionAuth, consult the FusionAuth log files. In most cases API errors will be written out to the fusionauth-app.log file.

If you need further assistance, please ask a question on Stack Overflow or open an issue on Github if you have additional questions. If you have a support contract you may send a request to

1.1. Logs

The following are the default locations for each of the FusionAuth log files. You may or may not have all of the FusionAuth services installed on the same system so you may not have all of the following logs on your server.

Linux and macOS

These paths assume the suggested product location of \fusionauth. This path may be different on your system depending on where you unpacked the zip files.