Troubleshooting

"chromedriver" binary not found — Run vendor/bin/bdi detect drivers, or install chromedriver with your package manager.

session not created: This version of ChromeDriver only supports Chrome version ... — Chrome was updated. Run vendor/bin/bdi detect drivers again.

The port 9080 is already in use — Another web server, or an earlier run that did not stop, uses the port. Stop it, or set PANTHER_WEB_SERVER_PORT. For chromedriver (9515), pass another port in $managerOptions.

Missing Database Table in the browser — The web server does not use the test datasource: check PANTHER_APP_ENV in phpunit.xml.dist and the APP_ENV lines of config/database.php, and that the test datasource is not an in-memory SQLite database.

A variable does not reach the web server — Set it in the shell, or in $_ENV or $_SERVER; a variable set only with putenv() is not passed.

The page has no CSS — The file is not in the document root, or PANTHER_WEB_SERVER_DIR points to the wrong directory.

Logs of the web server — CakePHP writes them to the usual LOGS directory. Requests and PHP errors of the built-in web server itself are not shown; start it by hand to see them: php -S 127.0.0.1:9080 -t webroot vendor/pieceofcake2/panther/resources/router.php.