The migrate-mongo create command stopped working in V9.0.0

[mary-deca]

Describe the bug
I upgraded to version 9.0.0. The command for creating a script doesn't work for me on the new version 9.0.0 but works fine when I went back to version 8.2.3

To Reproduce

1. I uninstalled and installed migrate-mongo to get the latest version
2. I tried to create a new script using migrate-mongo create command but I got the error message shown below

> db-migration-tool@1.0.0 migrate:create
> migrate-mongo create "name-of-my-script"

ERROR: ENOENT: no such file or directory, lstat '/Users/mary_e/Documents/db-migration-tool/node_modules/migrate-mongo/samples/undefined/migration.js' 
Error: ENOENT: no such file or directory, lstat '/Users/mary_e/Documents/db-migration-tool/node_modules/migrate-mongo/samples/undefined/migration.js'

Expected behavior
I expected that a new file be created in the migrations folder as on the older version.

Additional context
Checking the file path in the error message above, I think that a folder is expected to not be undefined. The expected file seems to be the one here https://github.com/seppevs/migrate-mongo/blob/master/samples/commonjs/migration.js

[hardikdiyora]

@mary-deca
Solution: you need to add below line in your migrate-mongo-config.js inside config object
moduleSystem: 'commonjs' or moduleSystem: 'esm' depending on module system you are using.

[GDnsk]

It worked. Thank you!!!

[samkaizenly]

I get the same error s OP even after confirming that the migrate-mongo-config.js has the correct modulesystem: 'esm' for my code... version is 9.0.0 for me as well

[bradyjibanez]

Ensure that moduleSystem is the key name, not modulesystem

[nocodehummel]

Could workaround modulesystem: 'esm' be updated in the README example?