问TypeORM迁移正在运行，无法设定种子(无连接？！在迁移中)

EN

const env = process.env.NODE_ENV || 'development';

module.exports = {
  type: 'postgres',
  host: process.env.POSTGRESQL_HOST,
  port: process.env.POSTGRESQL_PORT,
  username: process.env.POSTGRESQL_USERNAME,
  password: process.env.POSTGRESQL_PASSWORD,
  database: process.env.POSTGRESQL_DATABASE,
  synchronize: true,
  logging: false,
  entities: [env === 'production' ? 'build/entity/*{.ts,.js}' : 'src/entity/*{.ts,.js}'],
  migrations: [env === 'production' ? 'build/migration/*{.ts,.js}' : 'src/migration/*{.ts,.js}'],
  subscribers: [env === 'production' ? 'build/subscriber/*{.ts,.js}' : 'src/subscriber/*{.ts,.js}'],
  cli: {
    entitiesDir: 'src/entity',
    migrationsDir: 'src/migration',
    subscribersDir: 'src/subscriber',
  },
};

import { MigrationInterface, QueryRunner, TableColumn } from 'typeorm';
import userService from '../services/user.service';

export class SeedDefaultUser1610084649009 implements MigrationInterface {
  
  public userService = new userService();

  public async up(queryRunner: QueryRunner): Promise<void> {

    const dbs = await queryRunner.getDatabases(); // returns empty array []
    const schemas = await queryRunner.getSchemas(); // returns empty array []
    console.log(dbs, schemas);

    await queryRunner.createTable(
      new Table({
        name: 'user_entity',
        columns: [
          {
            name: 'id',
            type: 'int',
            isPrimary: true,
          },
          {
            name: 'email',
            type: 'varchar',
          },
        ],
      }),
      true,
    ); // Despite no db connections, this works! tables exist!   

    const user: User = await this.userService.create(
      {
        email: 'admin@email.com',
      },
    ); // This fails with:
       //QueryFailedError: relation "user_entity" does not exist

  }

  public async down(queryRunner: QueryRunner): Promise<void> {}
}