Cannot find module 'generated/prisma' or its corresponding type declarations

In my case the problem was in folder 'distr', which dont has folder "generated/prisma" after command npm run build.

Solution:

1. Delete outputline from file "prisma/schema.prisma"

   output          = "../generated/prisma"
   

   // This is your Prisma schema file,
   // learn more about it in the docs: https://pris.ly/d/prisma-schema
   
   // Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
   // Try Prisma Accelerate: https://pris.ly/cli/accelerate-init
   
   generator client {
     provider = "prisma-client-js"  
   }
   
   datasource db {
     provider = "postgresql"
     url      = env("DATABASE_URL")
   }
   
   model Role {
     id            Int      @default(autoincrement()) @id
     name          String   @unique
     alias         String   @unique
     description   String?
     blocked       Boolean  @default(false)
     createdAt     DateTime @default(now())
     updatedAt     DateTime @updatedAt
   }
   

   Now prisma will genereate output to /node_modules/@prisma/client

2. Run command: npx prisma generate

3. Reopen IDE.

4. In src/prisma.service.ts add import PrismaClient

   import { Injectable, OnModuleInit } from '@nestjs/common';
   import { PrismaClient } from '@prisma/client';
   
   @Injectable()
   export class PrismaService extends PrismaClient implements OnModuleInit {
     async onModuleInit() {
       await this.$connect();
     }
   
     async onModuleDestroy() {
       await this.$disconnect();
     }
   }
   

5. Add or edit file src/prisma.module.ts:

   import { Global, Module } from '@nestjs/common';
   import { PrismaService } from './prisma.service';
   
   @Global() // set module as global
   @Module({
     providers: [PrismaService],
     exports: [PrismaService],
   })
   export class PrismaModule {}
   

6. Add src/prisma.module.ts to src/app.module.ts:

   import { Module } from '@nestjs/common';
   import { AppController } from './app.controller';
   import { AppService } from './app.service';
   import { RolesModule } from './roles/roles.module';
   import { PrismaModule } from './prisma.module';
   
   @Module({
     imports: [RolesModule, PrismaModule],
     controllers: [AppController],
     providers: [AppService],
   })
   export class AppModule {}
   
   

7. In service (for example: src/roles/roles.service.ts) add import to role-model:

   import { Injectable } from '@nestjs/common';
   import { CreateRoleDto } from './dto/create-role.dto';
   import { UpdateRoleDto } from './dto/update-role.dto';
   import { PrismaService } from '../prisma.service';
   import { Role } from '@prisma/client';
   
   @Injectable()
   export class RolesService {
     constructor(private prisma: PrismaService) {}
   
     async create(createRoleDto: CreateRoleDto): Promise<Role> {
       console.log(createRoleDto);
       const role = await this.prisma.role.create({ data: createRoleDto });
       return role;
     }
   
     async findAll(): Promise<Role[]> {
       const roles = await this.prisma.role.findMany();
       return roles;
     }
   
     async findOne(id: string): Promise<Role | null> {
       const role = await this.prisma.role.findUnique({
         where: { id: Number(id) },
       });
       return role;
     }
   
     async update(id: string, data: UpdateRoleDto): Promise<Role> {
       const role = await this.prisma.role.update({
         data,
         where: { id: Number(id) },
       });
       return role;
     }
   
     async remove(id: string): Promise<Role> {
       const role = await this.prisma.role.delete({
         where: { id: Number(id) },
       });
       return role;
     }
   }
   
   

8. Run command: npm run build

9. Run command: npm start