Cannot find .../bcrypt_lib.node when running Docker for first time

[phillip-stephens]

I'm new to Docker so could definitely be something dumb I'm not doing with that. However when i start the project for the first time with ./run I get the following:

14:39:15 - Starting compilation in watch mode...


14:39:26 - Found 0 errors. Watching for file changes.
error: uncaughtException: Cannot find module '/app/node_modules/bcrypt/lib/binding/bcrypt_lib.node' date=Sat Jun 27 2020 14:39:27 GMT+1200 (NZST), pid=179, uid=0, gid=0, cwd=/app, execPath=/usr/bin/node, version=v8.17.0, argv=[/usr/bin/node, /app/Server.js, --config=config/app_test_default.js], rss=57946112, heapTotal=36098048, heapUsed=24350624, external=931319, loadavg=[1.2255859375, 0.69580078125, 0.61376953125], uptime=38289
Error: Cannot find module '/app/node_modules/bcrypt/lib/binding/bcrypt_lib.node'
    at Function.Module._resolveFilename (module.js:548:15)
    at Function.Module._load (module.js:475:25)
    at Module.require (module.js:597:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/app/node_modules/bcrypt/bcrypt.js:6:16)
    at Module._compile (module.js:653:30)
    at Object.Module._extensions..js (module.js:664:10)
    at Module.load (module.js:566:32)
    at tryModuleLoad (module.js:506:12)
    at Function.Module._load (module.js:498:3)
    at Module.require (module.js:597:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/app/models/Device.js:21:34)
    at Module._compile (module.js:653:30)
    at Object.Module._extensions..js (module.js:664:10)
    at Module.load (module.js:566:32)
    at tryModuleLoad (module.js:506:12)
    at Function.Module._load (module.js:498:3)
    at Module.require (module.js:597:17)
    at require (internal/module.js:11:18)
    at Sequelize.import (/app/node_modules/sequelize/lib/sequelize.js:481:62)
    at fs_1.default.readdirSync.filter.forEach (/app/models/index.js:75:35)

Anything I need to ensure I do before running the API server?