In order to detect dependencies, Trivy searches for `composer.lock`.
Trivy also supports dependency trees; however, to display an accurate tree, it needs to know whether each package is a direct dependency of the project.
Since this information is not included in `composer.lock`, Trivy parses `composer.json`, which should be located next to `composer.lock`.
If you want to see the dependency tree, please ensure that `composer.json` is present.
By default, Trivy doesn't report development dependencies (`packages-dev` in `composer.lock`).
Use the `--include-dev-deps` flag to include them.
To correctly identify direct development dependencies, Trivy parses `require-dev` from `composer.json`, which should be located next to `composer.lock`.
Trivy also supports dependency detection for `installed.json` files. By default, you can find this file at `path_to_app/vendor/composer/installed.json`.