# Module Development Documentation / Questions
**URL:** https://community.xibo.org.uk/t/module-development-documentation-questions/30976
**Category:** Developer Experience
**Created:** [January 22, 2024, 1:51pm UTC](https://community.xibo.org.uk/t/module-development-documentation-questions/30976 "2024-01-22T13:51:39Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@schroejahr](https://community.xibo.org.uk/u/schroejahr)
#### Post date: [January 22, 2024, 1:51pm UTC](https://community.xibo.org.uk/t/module-development-documentation-questions/30976/1 "2024-01-22T13:51:39Z")
Hello Everybody,
im new to xibo development, and some questions / problem arose while using the tutorial at [Hello World - Widgets | Xibo Digital Signage](https://xibosignage.com/docs/developer/widgets/hello-world)
I deployed the latest Xibo Version via docker.
“No-Data Hello World”
→ if i deploy the module 1:1 to the folder custom/modules the module shows up both in modules and in the designer, but there is no option to enter the message text in the designer.
If i switch the type from input to text it works as expected. (?)
“With-Data Hello World”
if i deploy the module 1:1 to the folder custom/modules and the DataProvider to custom/ the module shows up both in modules and in the designer, but in modules list there is an “!” in the error column
→ how do i trace this error ? In the “normal” debug log which can be downloaded is no error regarding modules. In the container log i cant see anything either.
In the Designer the module and the different fields from the message object are available,
but it says “Message Element has empty Data”
can somebody help me out ?
I have not changed any of the module source posted and used the correct filenames.
Thanks !
# CMS Version
Version 4.0.6
# Player Type
Windows
# Player Version
V4R402
---
### Author:  [@schroejahr](https://community.xibo.org.uk/u/schroejahr)
#### Post date: [January 25, 2024, 8:42pm UTC](https://community.xibo.org.uk/t/module-development-documentation-questions/30976/2 "2024-01-25T20:42:31Z")
There is a typo in the linked page.
```auto
This file should be saved in custom/HelloWorldDataProvider.php
```
should be:
```auto
This file should be saved in custom/Example/HelloWorldDataProvider.php
```
maybe someone could fix that. Thanks.