The root directory you have set here isn't a valid root directory which is the reason your build is failing: https://vercel.com/izumiandos-projects/portfolio/settings/build-and-deployment

Hi Swarnava, thanks for getting back to me so quickly. I am not sure what you mean, I have a active github repo in the root directory, and it is the same directory from which i can run the code on my local machine. (update: I made a new project on vercel and it worked with the same source code so i'm all set thanks!)

Unless you have Monorepo, since the root directory is already the entire repo which you are deploying, you don't need a root directory and keep blank.