Unable to start a simple program with nodejs and express

I'm encountering some difficulties with a simple nodejs and express program.

When I try to use npm start to run node .\bin\www, I receive the following errors:

C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api>npm start

<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5a393e39773b2a331a6a746a746a">[email protected]</a> start C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api
node .\bin\www


events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: listen EADDRINUSE
    at errnoException (net.js:904:11)
    at Server._listen2 (net.js:1042:14)
    at listen (net.js:1064:10)
    at Server.listen (net.js:1138:5)
    at Function.app.listen (C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api\node_modules\express\lib\application.js:556:24)
    at Object.<anonymous> (C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api\bin\www:
7:18)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)

npm ERR! <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4c2f282f612d3c250c7c627c627c">[email protected]</a> start: `node .\bin\www`
npm ERR! Exit status 8
npm ERR!
npm ERR! Failed at the <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c7a4a3a4eaa6b7ae87f7e9f7e9f7">[email protected]</a> start script.
npm ERR! This is most likely a problem with the cdc-api package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node .\bin\www
npm ERR! You can get their info via:
npm ERR!     npm owner ls cdc-api
npm ERR! There is likely additional logging output above.
npm ERR! System Windows_NT 6.2.9200
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
ejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! cwd C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api
npm ERR! node -v v0.10.32
npm ERR! npm -v 1.4.28
npm ERR! code ELIFECYCLE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api\npm-debug.log
npm ERR! not ok code 0

C:\Users\{USRNAME}\Desktop\projets\cdc\cdc-api>

Here's what the npm-debug.log contains:

0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'start' ]
2 info using <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c5abb5a885f4ebf1ebf7fd">[email protected]</a>
3 info using <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ef81808b8aaf99dfc1dedfc1dcdd">[email protected]</a>
4 verbose node symlink C:\Program Files\nodejs\\node.exe
5 verbose run-script [ 'prestart', 'start', 'poststart' ]
6 info prestart <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="99fafdfab4f8e9f0d9a9b7a9b7a9">[email protected]</a>
7 info start <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="bdded9de90dccdd4fd8d938d938d">[email protected]</a>
8 verbose unsafe-perm in lifecycle true
9 info <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1e7d7a7d337f6e775e2e302e302e">[email protected]</a> Failed to exec start script
10 error <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1e7d7a7d337f6e775e2e302e302e">[email protected]</a> start: `node .\bin\www`
10 error Exit status 8
11 error Failed at the <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e88b8c8bc5899881a8d8c6d8c6d8">[email protected]</a> start script.
11 error This is most likely a problem with the cdc-api package,
11 error not with npm itself.
11 error Tell the author that this fails on your system:
11 error     node .\bin\www
11 error You can get their info via:
11 error     npm owner ls cdc-api
11 error There is likely additional logging output above.
12 error System Windows_NT 6.2.9200
13 error command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
14 error cwd C:\Users\Moucheg\Desktop\projets\cdc\cdc-api
15 error node -v v0.10.32
16 error npm -v 1.4.28
17 error code ELIFECYCLE
18 verbose exit [ 1, true ]

I've attempted various solutions from online resources like reinstalling Node and recreating package.json but nothing seems to work.

Just to mention, I'm running Windows 8.

Thank you all for your anticipated help!

node.jsexpress

Answer №1

If you encounter the "EADDRINUSE" error, it indicates that the port you are trying to utilize is currently being used by another process on your system. To resolve this issue, consider changing the port assigned to your application or terminating the program that is occupying it.

Answer №2

An issue has arisen pointing out that the port is currently being utilized. It is advisable to modify the code and switch to a different port. On many occasions, node.js/express examples define the port in the file app.js.

Answer №3

EADDRINUSE occurs when your application is attempting to use a port that is already in use by another program. To resolve this issue, consider changing the port number to see if it resolves the problem.

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