Module import at lower directory level requires directory name to import

[BadaBingBee]

Describe the bug

project_root/
├── src/
│   └── backend/
│       └── index.v
└── index.v

-- index.v
import src.backend

the above import works but this import throws a compile error:
-- index.v
import backend

index.v:5:1: builder error: cannot import module "backend" (not found)

Reproduction Steps

--- src/backend.v

module backend

pub struct User {
...
}

--- index.v

import src.backend

Expected Behavior

expected this import to work:
--- index.v

import backend

Current Behavior

-- index.v
import backend

...throws an error:
index.v:5:1: builder error: cannot import module "backend" (not found)

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.8 58fc4de

Environment details (OS name and version, etc.)

Fedora Linux 41

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[spytheman]

Note: that is without a v.mod file at the top of the project.

[BadaBingBee]

Note: that is without a v.mod file at the top of the project.

Actually occurs with or without the v.mod file (at the top of the project).

[jorgeluismireles]

I put your folders and files inside my current project and worked (Ubuntu).

I have a v.mod file inside. Then I rename the file tov.modxin order to not to be found and then I got errors:

index.v:4:21: error: undefined ident: `src.backend.user`
    2 | 
    3 | fn main() {
    4 |     println('${backend.user}')
      |                        ~~~~
    5 | }

Try including a v.mod file sibling of index.v, with this content:

Module {
	name: 'your-name',
	description: "Your description",
	dependencies: [],
}