@kunalgithub Seems like an issue with your internet connection. Are you behind a proxy or firewall that might be disrupting requests to github.com?

yes - i am behind proxy

@kunalgithub Be sure to configure npm to use your proxy then. Here are the relevant configuration variables:

• proxy
• https-proxy
• cafile

I think you might have to configure git to use the proxy as well.

these all are configured properly .. fine and dandy except -- cafile ? -
GIT config
http.sslcainfo=C:/program files/git/mingw64/ssl/certs/ca-bundle.crt

Is the proxy configured for npm, or just for git?

I am using it on my home computer with no proxy configured, what to do?
I am using ubuntu 14.04 and using IntelliJ/Android studio

@SauravDas90 Maybe you have a firewall?

What a strange question, I put my /etc/hosts in github.com commented out, no problem!!!!

@kunalgithub Is this still an issue for you?

Closing as abandoned.

i had this same error

I had same this, my network not behind proxy.

i have same error . please help me

I have same error. I configured proxy settings also. still it's coming for me.

Try the solution that @ubuntuvim proposed.

Same problem here

Did you try the solution @ubuntuvim mentioned?

I was using iTerm and got the same error.
Switched to normal Terminal and it worked.

@ubuntuvim Thank you, it works for me.

@LiYaHX You are welcome......

I use windows and i have same error. Someone help?

Does the solution from @ubuntuvim work for you? What is npm -v and node -v?

I am back - This issue persists. Here is log
npm -v ==> 3.3.8
node -v ==> 6.11.3
BEHIND PROXY - PROXY is set in NPMRC and GIT
-------------LOGS
npm WARN addRemoteGit cmd: 'git -c core.longpaths=true config --get remote.origin.url' }
npm info resetRemote resetting C:\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb for git+https
//github.com/joshuafcole/async-node-events.git#d32411f1f4
npm verb gentlyRm don't care about contents; nuking C:\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0
326afb
npm info git [ 'clone',
npm info git '--template=C:\Users\ME\AppData\Roaming\npm-cache\_git-remotes\_templates',
npm info git '--mirror',
npm info git 'https://github.com/joshuafcole/async-node-events.git',
npm info git 'C:\Users\ME\AppData\Roaming\npm-cache\_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb' ]
npm ERR! git clone --template=C:\Users\ME\AppData\Roaming\npm-cache_git-remotes_templates --mirror https://github.com/joshuafcole/async-node-events.git C:\Users\ME\AppData\Roaming\npm-cac
e_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb: Cloning into bare repository 'C:\Users\ME\AppData\Roaming\npm-cache_git-remote
\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb'...
npm ERR! git clone --template=C:\Users\ME\AppData\Roaming\npm-cache_git-remotes_templates --mirror https://github.com/joshuafcole/async-node-events.git C:\Users\ME\AppData\Roaming\npm-cac
e_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb: fatal: unable to access 'https://github.com/joshuafcole/async-node-events.git/': Fai
ed to connect to github.com port 443: Connection refused
npm verb stack Error: Command failed: git -c core.longpaths=true clone --template=C:\Users\ME\AppData\Roaming\npm-cache_git-remotes_templates --mirror https://github.com/joshuafcole/async-node
events.git C:\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb
npm verb stack Cloning into bare repository 'C:\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb
...
npm verb stack fatal: unable to access 'https://github.com/joshuafcole/async-node-events.git/': Failed to connect to github.com port 443: Connection refused
npm verb stack
npm verb stack at ChildProcess.exithandler (child_process.js:198:12)
npm verb stack at emitTwo (events.js:106:13)
npm verb stack at ChildProcess.emit (events.js:191:7)
npm verb stack at maybeClose (internal/child_process.js:920:16)
npm verb stack at Socket. (internal/child_process.js:351:11)
npm verb stack at emitOne (events.js:96:13)
npm verb stack at Socket.emit (events.js:188:7)
npm verb stack at Pipe._handle.close [as _onclose] (net.js:497:12)
npm verb cwd C:\Bla\app
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Users\ME\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js" "--verbose" "install"
npm ERR! node v6.11.3
npm ERR! npm v3.3.8
npm ERR! code 128

npm ERR! Command failed: git -c core.longpaths=true clone --template=C:\Users\ME\AppData\Roaming\npm-cache_git-remotes_templates --mirror https://github.com/joshuafcole/async-node-events.git C
\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb
npm ERR! Cloning into bare repository 'C:\Users\ME\AppData\Roaming\npm-cache_git-remotes\git-https-github-com-joshuafcole-async-node-events-git-d32411f1f4-c1010c71660940b2a2eaab4c0f326afb'...
npm ERR! fatal: unable to access 'https://github.com/joshuafcole/async-node-events.git/': Failed to connect to github.com port 443: Connection refused
npm ERR!
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR! https://github.com/npm/npm/issues
npm verb exit [ 1, true ]

npm ERR! Please include the following file with any support request:
npm ERR! C:\Bla\app\npm-debug.log

failed to connect to github
unknown host: api.github.com?? this error is coming in my android studio

how to resolve??

Same problem here

Use a proxy to connect to the internet.
Use the Package httr
library("httr")
set_config(use_proxy("abcd.com",port = 8080, username = "*******", password="********"))
its worked for me

{"failed":"cURL error 7: Failed to connect to api.github.com port 443: Connection timed out"}

i have this problem in my WordPress website http://www.technicalstock.in how to remove this error

Well, i fixed that problem by using vpn. I guess my provider blocked some server that sdkman uses(i live in Russia).

The solution to this error
{"failed":"cURL error 7: Failed to connect to api.github.com port 443: Connection timed out"} my website http://www.technicalstock.in I was a problem for most of the time

This error showing for some security virus in our home directory ( Step 1)

1. if you have Hostgator hosting account first scan virus for home directory and after scan repair those files

2. step go to Port 80 option in Hostgator penal unblock port

problam solve