Fresh install of Trellis by Roots on Ubuntu & VituralBox is missing composer.json under /srv/www/website.com/current - wordpress

Question

This is the error message I got when I first run 'vagrant provision' (after command 'vagrant up' blocked in 'Mounting NFS shared folders...') under the trellis directory:
TASK [wordpress-install : Install Dependencies with Composer] ******************
System info:
Ansible 2.9.11; Vagrant 2.2.9; Linux
Trellis version (per changelog): "Removes ID from Lets Encrypt bundled certificate and make filename stable"
---------------------------------------------------
Composer could not find a composer.json file in /srv/www/example.com/current
To initialize a project, please create a composer.json file
as described in the https://getcomposer.org/ "Getting Started"
section failed: [default] (item=example.com) =>
{
"ansible_loop_var": "item",
"changed": false,
"item": {
"key": "example.com",
"value": {
"admin_email": "admin#example.test",
"cache": {
"enabled": false
},
"local_path": "../site",
"multisite": {
"enabled": false
},
"site_hosts": [
{
"canonical": "example.test",
"redirects": [
"www.example.test"
]
}
],
"ssl": {
"enabled": false,
"provider": "self-signed"
}
}
},
"stdout": "Composer could not find a composer.json file in /srv/www/example.com/current\nTo initialize a project, please create a composer.json file as described in the https://getcomposer.org/ \"Getting Started\" section\n",
"stdout_lines": [
"Composer could not find a composer.json file in /srv/www/example.com/current",
"To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ \"Getting Started\" section"
]
}
PLAY RECAP *********************************************************************
default : ok=125 changed=83 unreachable=0 failed=1 skipped=34 rescued=0 ignored=0
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.
How do I fix this? Where to find the right composer.json for Trellis, Bedrock, and Sage for local development on Linux?
Ubuntu 19.10