هرکار میکنم لاراول میکس نصب نمیشه

سلام دوستان من لاراول 5.6 نصب کردم . ورژن نود هم 9 هست . ورزن npm هم 5.8.0 هست . ولی هرکار میکنم npm install درلاراول خطا میده . خطاشم هرچی سرچ کردم توی اینترنت اصلا نیست . نمیدونم چشه . دسترسی پوشه هم ۷۷۷ است .

⚠ EACCES: permission denied, mkdir '/opt/lampp/htdocs/Zaf/node_modules/gifsicle/vendor'
⚠ gifsicle pre-build test failed
ℹ compiling from source
/opt/lampp/htdocs/Zaf/node_modules/onetime/index.js:15
throw new Error(fnName + ' can only be called once.');
^

Error: callback() can only be called once.
at onetime (/opt/lampp/htdocs/Zaf/node_modules/onetime/index.js:15:11)
at /opt/lampp/htdocs/Zaf/node_modules/download/index.js:156:5
at ConcatStream.<anonymous> (/opt/lampp/htdocs/Zaf/node_modules/concat-stream/index.js:37:43)
at ConcatStream.emit (events.js:132:15)
at finishMaybe (/opt/lampp/htdocs/Zaf/node_modules/readable-stream/lib/_stream_writable.js:630:14)
at endWritable (/opt/lampp/htdocs/Zaf/node_modules/readable-stream/lib/_stream_writable.js:638:3)
at ConcatStream.Writable.end (/opt/lampp/htdocs/Zaf/node_modules/readable-stream/lib/_stream_writable.js:594:41)
at DuplexWrapper.onend (/opt/lampp/htdocs/Zaf/node_modules/readable-stream/lib/_stream_readable.js:577:10)
at Object.onceWrapper (events.js:219:13)
at DuplexWrapper.emit (events.js:132:15)