DevTools failed to load SourceMap: Could not load content for file:///D:/ProjectPersional/A-Sang/PowerHtml/power/assets/css/icons.min.css.map: System error: net::ERR_FILE_NOT_FOUND code example

Example: DevTools failed to load SourceMap: Could not load content for

Open Developer Tools, 
go to "Settings" for Developer Tools, 
then uncheck Enable JavaScript Sourcemaps under the "Sources" settings.
Restart Browser if needed