Destroys the whole asset shape

So I got the png from your give project
nad went to this website https://www.9patch.online/editor and created the 9 patch image of this png and this website gives me this 9 slice image
and now when i run
`dart run nine_patcher path/to/the/.9.png/image` and then it returns this error

`Unhandled exception:
InvalidNinePatchException: 'No stretch area found along the top.'
#0 findStretch (package:nine_patcher/src/image_decode.dart:115:5)
#1 decodeNinePatchMetadata (package:nine_patcher/src/image_decode.dart:24:19)
#2 new NinePatchImage.fromImage (package:nine_patcher/src/image.dart:18:22)
#3 main (file:///Users/ahmadizaz/.pub-cache/hosted/pub.dev/nine_patcher-1.0.1/bin/nine_patcher.dart:65:29)
`

Now Okay the error is self explanatory but whatever image I add, it always just gives the error. was not able to create .json file for once.