Unable to create package using FDK

I am using FDK for creating app for freshworks & freshservice. While validating the app i am getting 0 errors but 100+ warnings.
image

With node 14.19 i am able to get the package with all these errors but when i use node 18.20.4 the package is not created.

image
With node 14 :point_up_2:

With node 18 after the warning i couldn’t get any error after running the pack command & the package is not generated.

Currently i am doing a little hack to get the package. I get the package using node 14 and update the node version to 18 in the package manifest manually. Unable to create package using FDK