Install my own local library

[v-danh]

This is the first time I have tried to write my library using poetry ., then I used poetry build and poetry add locally as follows:
poetry build is successful, but
poetry add is not.

This is my dictionary structure tree

Cannot add dependency on colorxcode to project with the same name.
No changes were applied.

As far as I know in poetry's doc,

The package name should not be the same as the project name.

And why is it not allowed to have duplicate names?

[v-danh]

@Secrus or someone else explain to me in #9741?

[nbaju1]

Are you trying to add the package as a dependency to itself? If so, why?

The package name should not be the same as the project name.

Where in the docs is this stated?