Sass Compiling Error

header.css
"File Permissions Error, could not write to the CSS directory."

main.css
"File Permissions Error, could not write to the CSS directory."

hero.css
"File Permissions Error, could not write to the CSS directory."

text-container.css
"File Permissions Error, could not write to the CSS directory."

products.css
"File Permissions Error, could not write to the CSS directory."