Postgresql – PrismaClientInitializationError: error: Environment variable not found: DATABASE_URL

EDIT : Deleted dist and node_modules folder and ran the commands again. Worked

I have prisma nest js project with postgresql db.

I am getting the following error after running npm run start :

PrismaClientInitializationError: error: Environment variable not found: DATABASE_URL.
  -->  schema.prisma:13
   | 
12 |   provider = "postgresql"
13 |   url      = env("DATABASE_URL")
   | 

Validation Error Count: 1

Things I have tried and outputs :

npx prisma migrate dev --name init

output : Environment variables loaded from .env
Prisma schema loaded from prisma/schema.prisma
Datasource "db": PostgreSQL database "spotapp", schema "public" at "localhost:2345"

npx prisma generate

output :
Environment variables loaded from .env
Prisma schema loaded from prisma/schema.prisma

I have .env file at root

I am on macOS