Home/ Questions/Error: npm err! cb() never called! – Quick tips
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Jules Caron
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Asked: 2022-05-12T12:08:46+00:00 In:

Error: npm err! cb() never called! – Quick tips

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I am new to javascript and searching the “npm err! cb() never called!” to understand it better. It seems it doesn’t work as expected when I used some suggestions before.
This is the command line I use:

git push heroku

The error I’m getting is below:

Counting objects: 14, done.
 Delta compression using up to 6 threads.
 Compressing objects: 100% (12/12), done.
 Writing objects: 100% (12/12), 1.20 KiB, done.
 Total 12 (delta 8), reused 0 (delta 0)
 
 -----> Node.js app detected
 -----> Resolving engine versions
  Using Node.js version: 0.6.20
  Using npm version: 1.2.12
 -----> Fetching Node.js binaries
 -----> Vendoring node into slug
 -----> Installing dependencies with npm
  npm http GET https://registry.npmjs.org/pg/0.6.15
  npm http GET https://registry.npmjs.org/socket.io
  npm http 200 https://registry.npmjs.org/pg/0.6.15
  npm http GET https://registry.npmjs.org/pg/-/pg-0.6.15.tgz
  npm http 200 https://registry.npmjs.org/socket.io
  npm http GET https://registry.npmjs.org/socket.io/-/socket.io-0.9.13.tgz
  npm http 200 https://registry.npmjs.org/pg/-/pg-0.6.15.tgz
  npm http 200 https://registry.npmjs.org/socket.io/-/socket.io-0.9.13.tgz
  npm http GET https://registry.npmjs.org/socket.io-client/0.9.11
  npm http GET https://registry.npmjs.org/policyfile/0.0.4
  npm http GET https://registry.npmjs.org/base64id/0.1.0
  npm http GET https://registry.npmjs.org/redis/0.7.3
  npm http GET https://registry.npmjs.org/generic-pool/1.0.9
  npm http 200 https://registry.npmjs.org/policyfile/0.0.4
  npm http GET https://registry.npmjs.org/policyfile/-/policyfile-0.0.4.tgz
 
  npm http 200 https://registry.npmjs.org/base64id/0.1.0
  npm http GET https://registry.npmjs.org/base64id/-/base64id-0.1.0.tgz
  npm http 200 https://registry.npmjs.org/generic-pool/1.0.9
  npm http GET https://registry.npmjs.org/generic-pool/-/generic-pool-1.0.9
 .tgz
  npm http 200 https://registry.npmjs.org/socket.io-client/0.9.11
  npm http GET https://registry.npmjs.org/socket.io-client/-/socket.io-clie
 nt-0.9.11.tgz
  npm http 200 https://registry.npmjs.org/redis/0.7.3
  npm http GET https://registry.npmjs.org/redis/-/redis-0.7.3.tgz
  npm http 200 https://registry.npmjs.org/policyfile/-/policyfile-0.0.4.tgz
 
  npm http 200 https://registry.npmjs.org/base64id/-/base64id-0.1.0.tgz
  npm http 200 https://registry.npmjs.org/generic-pool/-/generic-pool-1.0.9
 .tgz
  npm http 200 https://registry.npmjs.org/socket.io-client/-/socket.io-clie
 nt-0.9.11.tgz
  npm http 200 https://registry.npmjs.org/redis/-/redis-0.7.3.tgz
 
  > [email protected] install /tmp/build_36us8733h7kkr/node_modules/pg
  > node-waf configure build || (exit 0)
 
  Checking for program g++ or c++ : /usr/bin/g++
  Checking for program cpp : /usr/bin/cpp
  Checking for program ar : /usr/bin/ar
  Checking for program ranlib : /usr/bin/ranlib
  Checking for g++ : ok
  Checking for node path : not found
  Checking for node prefix : ok /tmp/node-node-nNUw
  Checking for program pg_config : /usr/bin/pg_config
  'configure' finished successfully (0.058s)
  Waf: Entering directory `/tmp/build_36us8733h7kkr/node_modules/pg/build'
  [1/2] cxx: src/binding.cc -> build/Release/src/binding_1.o
  [2/2] cxx_link: build/Release/src/binding_1.o -> build/Release/binding.no
 de
  Waf: Leaving directory `/tmp/build_36us8733h7kkr/node_modules/pg/build'
  'build' finished successfully (0.492s)
  npm http GET https://registry.npmjs.org/uglify-js/1.2.5
  npm http GET https://registry.npmjs.org/ws
  npm http GET https://registry.npmjs.org/xmlhttprequest/1.4.2
  npm http GET https://registry.npmjs.org/active-x-obfuscator/0.0.1
  npm http 200 https://registry.npmjs.org/active-x-obfuscator/0.0.1
  npm http GET https://registry.npmjs.org/active-x-obfuscator/-/active-x-ob
 fuscator-0.0.1.tgz
  npm http 200 https://registry.npmjs.org/uglify-js/1.2.5
  npm http GET https://registry.npmjs.org/uglify-js/-/uglify-js-1.2.5.tgz
  npm http 200 https://registry.npmjs.org/xmlhttprequest/1.4.2
  npm http GET https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1
 .4.2.tgz
  npm http 200 https://registry.npmjs.org/ws
  npm http GET https://registry.npmjs.org/ws/-/ws-0.4.25.tgz
  npm http 200 https://registry.npmjs.org/active-x-obfuscator/-/active-x-ob
 fuscator-0.0.1.tgz
  npm http 200 https://registry.npmjs.org/uglify-js/-/uglify-js-1.2.5.tgz
  npm http 200 https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1
 .4.2.tgz
  npm http 200 https://registry.npmjs.org/ws/-/ws-0.4.25.tgz
  npm http GET https://registry.npmjs.org/zeparser/0.0.5
  npm http GET https://registry.npmjs.org/commander
  npm http GET https://registry.npmjs.org/tinycolor
  npm http GET https://registry.npmjs.org/options
  npm http 200 https://registry.npmjs.org/zeparser/0.0.5
  npm http GET https://registry.npmjs.org/zeparser/-/zeparser-0.0.5.tgz
  npm http 200 https://registry.npmjs.org/options
  npm http GET https://registry.npmjs.org/options/-/options-0.0.3.tgz
  npm http 200 https://registry.npmjs.org/tinycolor
  npm http GET https://registry.npmjs.org/tinycolor/-/tinycolor-0.0.1.tgz
  npm http 200 https://registry.npmjs.org/commander
  npm http GET https://registry.npmjs.org/commander/-/commander-0.6.1.tgz
  npm http 200 https://registry.npmjs.org/zeparser/-/zeparser-0.0.5.tgz
  npm http 200 https://registry.npmjs.org/options/-/options-0.0.3.tgz
  npm http 200 https://registry.npmjs.org/tinycolor/-/tinycolor-0.0.1.tgz
  npm http 200 https://registry.npmjs.org/commander/-/commander-0.6.1.tgz
 
  > [email protected] install /tmp/build_36us8733h7kkr/node_modules/socket.io/node_
 modules/socket.io-client/node_modules/ws
  > (node-gyp rebuild 2> builderror.log) || (exit 0)
 
  make: Entering directory `/tmp/build_36us8733h7kkr/node_modules/socket.io
 /node_modules/socket.io-client/node_modules/ws/build'
  CXX(target) Release/obj.target/bufferutil/src/bufferutil.o
  SOLINK_MODULE(target) Release/obj.target/bufferutil.node
  SOLINK_MODULE(target) Release/obj.target/bufferutil.node: Finished
  COPY Release/bufferutil.node
  CXX(target) Release/obj.target/validation/src/validation.o
  SOLINK_MODULE(target) Release/obj.target/validation.node
  SOLINK_MODULE(target) Release/obj.target/validation.node: Finished
  COPY Release/validation.node
  make: Leaving directory `/tmp/build_36us8733h7kkr/node_modules/socket.io/
 node_modules/socket.io-client/node_modules/ws/build'
  npm ERR! cb() never called!
  npm ERR! not ok code undefined
  npm ERR! cb() never called!
  npm ERR! not ok code 1
  ! Failed to install --production dependencies with npm
  ! Heroku push rejected, failed to compile Node.js app
 
 To [email protected]:still-chamber-1286.git
  ! [remote rejected] master -> master (pre-receive hook declined)
 error: failed to push some refs to '[email protected]:still-chamber-1286.git'
npm ERR! cb() never called!
  npm ERR! not ok code undefined
  npm ERR! cb() never called!
  npm ERR! not ok code 1
  ! Failed to install --production dependencies with npm
  ! Heroku push rejected, failed to compile Node.js app
 
  To [email protected]:still-chamber-1286.git
  ! [remote rejected] master -> master (pre-receive hook declined)
  error: failed to push some refs to '[email protected]:still-chamber-1286.git'

Please give me the solution for this issue.

cb() never called
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2 Answers

  1. Best Answer
    Expert

    The cause: I think this error happens perhaps because the engine you were using for Node was outdated.

    The solution: These steps below will help you solve this error:

    1. Clear your npm cache: sudo npm cache clean -f
    2. Install the latest version of the Node helper: sudo npm install -g n
    3. Tell the helper (n) to install the latest stable version of Node: sudo n stable

    You will be up to date if you get a progress display  

    • 5

  2. Try this first if you have npm Version 5 or higher 

    $ sudo npm cache verify

    Otherwise: 

    $ sudo npm cache clean

    My node version and the npm version are: 

    $ node -v
v0.10.0

$ npm -v
1.2.14


    https://docs.npmjs.com/cli/cache

    • 12

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