During to deploy on Netlify it's giving "build.command" failed error

Hi @ZaubayerAhammedTolon,

Thanks for reaching out and welcome to Netlify’s Support Forums!

I’ve responded to your other post here:

As this looks to be the same issue, please respond to the other post (linked above). Also, to better help us out, please don’t open multiple post for the same issues as it can cause confusion. Thanks!