Gulp error - can't solve it. No answer here yet

I get this error.

There is an error in your gulpfile: 
Error: `libsass` bindings not found. Try reinstalling `node-sass`?
at getBinding (/Users/SubjectiveEffect/node_modules/gulp-sass/node_modules/node-sass/lib/index.js:22:11)
at Object.<anonymous> (/Users/SubjectiveEffect/node_modules/gulp-sass/node_modules/node-sass/lib/index.js:188:23)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)

I’ve reinstalled node-sass, npm, node, ionic, everything.

Any idea what is going on? I see that a lot of people have problems with this but there seem to be no solutions…

Do this
npm uninstall gulp-sass
install gulp-sass@2
npm rebuild node-sass