Missing "target" option error when doing npm run dev

[ledpup]

I just downloaded this app to try it out. I get the following error after npm run dev. Prior to that I did npm install. Can't find mucha about it online. A missing .env file maybe?

RemixRunDotNet-main\src\WebApp\RemixApp\node_modules\http-proxy-middleware\dist\config-factory.js:38 throw new Error(errors_1.ERRORS.ERR_CONFIG_FACTORY_TARGET_MISSING); ^ Error: [HPM] Missing "target" option. Example: {target: "http://www.example.org"} at createConfig (C:\Users\Patrick\Downloads\RemixRunDotNet-main\src\WebApp\RemixApp\node_modules\http-proxy-middleware\dist\config-factory.js:38:15)