Nodejs exception error: listen eacces

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Exception information

Error: listen EACCES
    at Object.exports._errnoException (util.js:1018:11)
    at exports._exceptionWithHostPort (util.js:1041:20)
    at Server._listen2 (net.js:1245:19)
    at listen (net.js:1294:10)
    at net.js:1404:9
    at GetAddrInfoReqWrap.asyncCallback [as callback] (dns.js:62:16)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:81:10)

npm ERR! Windows_NT 10.0.14393
npm ERR! argv "D:\\nodejs\\node.exe" "D:\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! node v6.10.3
npm ERR! npm  v3.10.10
npm ERR! [email protected] start: `http-server ./app -a localhost -p 8000 -c-1`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script 'http-server ./app -a localhost -p 8000 -c-1'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the angular-phonecat package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     http-server ./app -a localhost -p 8000 -c-1
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs angular-phonecat
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls angular-phonecat
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     E:\Git\Repository\angular-phonecat\npm-debug.log

The solution

The exception is caused by 8000 port being occupied. Check the 8000 port being occupied under Windows

E:\Git\Repository\angular-phonecat>netstat -ano|findstr "8000"
  TCP               LISTENING       18480
  TCP        TIME_WAIT       0
  TCP        TIME_WAIT       0
  TCP        TIME_WAIT       0
  TCP        TIME_WAIT       0
  TCP        TIME_WAIT       0
  TCP        TIME_WAIT       0
  TCP         TIME_WAIT       0
  UDP           *:*                                    18480

Because process 0 is a system process, executing “Taskkill/PID 0” will not kill it. So, find another way to change the port, as follows:

Under node’s installation root, find package.json, search 8000, and replace with 8888


Then execute the command NPM Start from the command line, and it starts successfully

Enter it in the browser
, you can see the successful access

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