Log in problem in Mage
I cant see website becuse i cant log in to my ready local host. i can not see how localhost is working. Database problem and sometimes eror 500.
2 Replies
Hi @Гио. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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It sounds like your Mage-generated Wasp app isn’t connecting to the database reliably, which can cause blank pages, 500 errors, and failed logins. Here are focused steps to diagnose and fix the most common issues seen with Mage apps:
1) Ensure the dev database is running
- If you use Wasp’s managed DB: run
- wasp start db
- If you get “Couldn’t find docker executable,” install Docker and ensure it’s in PATH. [Need help running Wasp app]
- Alternative (often more reliable): run Postgres yourself via Docker:
- docker run --name mydb -p 5432:5432 -v mydb:/var/lib/postgresql/data -e POSTGRES_PASSWORD=postgresWaspDevPass -e POSTGRES_USER=postgresWaspDevUser -e POSTGRES_DB=mydb --rm postgres:16 [Schedule email]
2) Set DATABASE_URL and try 127.0.0.1 instead of localhost
- Some environments have IPv6/localhost resolution issues. Set:
- DATABASE_URL=postgresql://postgresWaspDevUser:postgresWaspDevPass@127.0.0.1:5432/mydb
- Users reported this resolves connection errors that appear with localhost. [pg-boss failed; Schedule email]
- If using wasp start db, set DATABASE_URL after the DB is started, then start the app. [Schedule email]
3) Run migrations
- wasp db migrate-dev
- If Prisma shows P1001 (can’t reach DB), the DB isn’t reachable—recheck step 1 and your DATABASE_URL. [Realworld issue; Db setup claim bug]
4) Start the app and check logs
- wasp start
- If you still get blank page/500, Mage often generates incorrect imports or schema constraints.
- Example: wrong imports like importing Link from wasp/client/operations—fix to import { Link } from 'wasp/client/router'. [localhost:3000 blank]
- Example: over‑strict entity relations causing runtime errors—make optional if needed (e.g., twitterCredentials on User). [DB error thread]
5) Common checks
- Confirm port 5432 isn’t taken by a native Postgres (use lsof/netstat) if wasp start db can’t bind it. [Schedule email]
- If you see P1003 “database does not exist,” it’s often just noise before migration runs—focus on later errors and ensure migrate-dev succeeds. [DB error answers]
If you share:
- your OS, wasp version,
- the exact error message/stack from terminal and browser,
- your DATABASE_URL,
- and the Mage share link,
we can point to the exact line(s) to fix, like in the examples above. [localhost:3000 blank; DB error answers]
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @Гио, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
@Гио did the bot's answer help you out, do you need some more assistance?