Cannot use import statement outside a module in nestjs using typeorm

Question

while a execute npm run typeorm migration:generate -- -n migrationNameHere all is working good and then when i execute npm run typeorm migration:run all the migration are ok in the database , but when i execute npm run start:dev i get an error :

This is the error i get

the is the tree of my folders:

The structure of my folders

this is my ormconfig.json file:

{
"type": "mysql",
"host": "localhost",
"port": 3306,
"username": "root",
"password": "",
"database": "tpicoxxxxx",
"entities": ["dist/**/*.entity{.ts,.js}"],
"migrationsTableName": "migrations_table",
"migrations": ["src/databasesssx/migrations/*{.ts,.js}"],
"cli": {
    "migrationsDir": "src/databasesssx/migrations"
}

}

in the package.json file i have the following line in scripts section:

 "typeorm": "ts-node-dev ./node_modules/typeorm/cli.js"

i am using typeorm , mysql2

i am using mac big sur.

i thought maybe the problem maybe is because databasesssx folder is outside of src and then i move inside src folder but the problem did not go.

this is my script in registro module:

import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
import { Administrador } from './administrador/entities/administrador.entity';
import { RegistroControllerController } from './registro-controller/registro- 
controller.controller';
import { ServiceRegistroService } from './service-registro/service-registro.service';

 @Module({

  imports : [
    TypeOrmModule.forFeature([Administrador]),
  ],

 providers: [ServiceRegistroService],

  controllers: [RegistroControllerController]  

 })
  export class RegistroModule {}

and this is the script in app.module

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { AppController } from './app.controller';
 import { AppService } from './app.service';
import { RegistroModule } from './registro/registro.module';

   @Module({
  imports: [RegistroModule  ,TypeOrmModule.forRoot()],
   controllers: [AppController],
   providers: [AppService],
   })
   export class AppModule {}

then i tried following the next solution in this site of stack overflow : Similar Problem

but the problem is still there.

By the way i am using xammp in mac with phpmyadmin.

Thank you so much.

Hello @MicaelLevi this is the script: start:dev: nest start --watch is inside package.json. — DavidIjsud
– DavidIjsud, Commented Jul 5, 2021 at 2:24
@MicaelLevi if i change dist to src the migrations and all works but the main problem is still there. — DavidIjsud
– DavidIjsud, Commented Jul 5, 2021 at 2:31

Jackie McDoniel · Accepted Answer · 2021-07-05 03:44:35Z

0

"migrations": ["src/databasesssx/migrations/*{.ts,.js}"],

This tells TypeORM where the migrations exist, which is fine, until you realize that TypeORM will read for the migrations not only at the time of running migrations, but also at time of starting the application. So now, while running nest start --watch which essentially runs node under the hood, the JavaScript engine is importing a Typescript file from src/migrations and is causing an error. If possible, I would separate out the runtime config from the CLI config to ensure this kind of thing cannot happen

answered Jul 5, 2021 at 3:44

Jackie McDoniel

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3 Comments

DavidIjsud Over a year ago

Thank you so much @Jay McDoniel, well i am going to invesstigate how to do that configuration :). thank you

DavidIjsud Over a year ago

i dont know how to separate it how can i do it? please

Jackie McDoniel Over a year ago

You can make two configuration files, as one option.

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