Error message when trying to create a subtheme as described in the documentation

Thanks for reporting.
Please, check permission of files

cd PROJECT_FOLDER
sudo chmod 775 -R . ; sudo chown www-data:$USER -R .

✅ Released vartheme_bs4-9.0.25 →

• Issue #3369885 → : Updated minimum Node.js version for Vartheme BS4 to >= 18.0
  
  Changed
  Install Needed YARN and Gulp Tools
  Changed
  Creating Your Own Theme

hi
ok looks like the error was an issue related to how my lando environment was build.
With lando file that came with the project, the configured node's service section wasn't working correctly when i run the configured tooling command . Searching on google, some people confirm it's a known issue that happens sometimes with node's service and suggest (as workaround) building the node as part of the appserver service which is what i did to get the sub-theme created as expected.

However there are still some confusion between how sub-theme is created/generated (files/folder) and Varbase theme documentation

At the root of project i can see there a package.json file that yarn install command will certainly validate and create a yarn.lock file and node_modules library when building lando environment.

But before creating a sub-theme there's a step in Documentation(needed tools) that asked to run npm install gulp -D
after which (if run from project root ) will create a package-lock.json file were there is already yarn.lock. This continuously produce warning of something like "it is not recommended to have both lock file..."

Should i don't mind of that warning ?

Thanks