The error message you’re encountering, (node:9544) UnhandledPromiseRejectionWarning: TypeError: sass.sync is not a function, indicating that there’s a problem with the usage of the sass.sync function in your code, possibly within your Gulp task related to deploying extensions. Here are a few steps you can take to troubleshoot and solve this issue: Check Dependencies: Make sure… Continue reading How to solve the error : (node:9544) UnhandledPromiseRejectionWarning: TypeError: sass.sync is not a function while executing the gulp commands?