Error - SESSION_SECRET must be set

[NookaCoder]

Temp site name: https://whimsical-puppy-2a78d1.netlify.app/
Error log: ```
Error: SESSION_SECRET must be set
at Object. (/var/task/.netlify/functions-internal/server.js:275:9)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Object.Module._extensions…js (node:internal/modules/cjs/loader:1308:10)
at Module.load (node:internal/modules/cjs/loader:1117:32)
at Function.Module._load (node:internal/modules/cjs/loader:958:12)
at Module.require (node:internal/modules/cjs/loader:1141:19)
at require (node:internal/modules/cjs/helpers:110:18)
at Object. (/var/task/server.js:1:18)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Object.Module._extensions…js (node:internal/modules/cjs/loader:1308:10)

Does anyone know how to fix this error? 
The session secret is in the .env file, and everything works just fine on localhost.

[NookaCoder]

P.S. I’m using Remix, basic settings, set up for Netlify.

[SamO]

Can you attach the few link to the log? and please specify what you’ve already tried and what issue you are experiencing.

[NookaCoder]

• Did this tutorial: App Tutorial (long) | Remix
• Completely gave up on hosting at fly.io after a day of failure.
• Decided to try a new repo, set to deploy from Netlify (which I’ve always found straightforward): GitHub - CarlieMartece/remix-jokes-netlify: Remix jokes tutorial for Netlify
• Deployed with no error messages on here or the terminal, until I went to the deployed page, found an error message there leading me to this: Learn to configure your build process on Netlify to avoid caching-related problems
• Added the custom postinstall script, deployed again, again no error messages on here or the terminal, until opening the deployed page and seeing the error message above.

[hrishikesh]

Looks like an old issue with Remix: Error: Invariant failed: SESSION_SECRET must be set · Issue #71 · remix-run/grunge-stack (github.com)