Spot the link / entityClass error!

gulpfile.js

@@ -0,0 +1,32 @@
+const gulp = require('gulp');
+const less = require('gulp-less');
+
+/* ----------------------------------------- */
+/*  Compile LESS
+/* ----------------------------------------- */
+
+const SW5E_LESS = ["less/*.less"];
+function compileLESS() {
+  return gulp.src("less/sw5e.less")
+    .pipe(less())
+    .pipe(gulp.dest("./"))
+}
+const css = gulp.series(compileLESS);
+
+/* ----------------------------------------- */
+/*  Watch Updates
+/* ----------------------------------------- */
+
+function watchUpdates() {
+  gulp.watch(SW5E_LESS, css);
+}
+
+/* ----------------------------------------- */
+/*  Export Tasks
+/* ----------------------------------------- */
+
+exports.default = gulp.series(
+  gulp.parallel(css),
+  watchUpdates
+);
+exports.css = css;