Angular CI/CD : d3 format types failing while fetching in tfs build definitions - angular

Angular CI/CD : d3 format types failing while fetching in tfs build definitions.
error message:
npm ERR! FetchError: request to failed, reason: connect ECONNREFUSED
npm ERR! at ClientRequest.req.on.err (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\node_modules\make-fetch-happen\node_modules\node-fetch-npm\src\index.js:68:14)


Error when yarn add and npm i

Good evening!
i'm trying to add some packages to my native react application but it's not working with either npm or yarn. i have uninstalled and reinstalled yarn but it has not changed anything
I use Windows 10.
for yarn :
yarn add react-navigation
yarn add v1.5.1
[1/4] Resolving packages...
error An unexpected error occurred: "Couldn't find the binary git".
info If you think this is a bug, please open a bug report with the information provided in "C:\\Users\\Boubacar\\Desktop\\blob\\essai\\yarn-error.log".
info Visit for documentation about this command.
for npm :
npm i react-navigation
npm ERR! code ENOGIT
npm ERR! No git binary found in $PATH
npm ERR!
npm ERR! Failed using git.
npm ERR! Please check if you have git installed and in your PATH.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Boubacar\AppData\Roaming\npm-cache\_logs\2018-04-08T00_02_28_158Z-debug.log.
Help me please!
The console log is plain and clear.
error An unexpected error occurred: "Couldn't find the binary git".
Check/Install Git on your system.

create-react-app npm run build fail to minify watson node sdk

I am new to React and I am trying to build a react app using create-react-app and Watson node-sdk. Everything works fine in development mode after running npm start. But when I try to build a production package using npm run build and below is the error I receive.
e:\Microsoft\Workspace\React\myapp>npm run build
> myapp#0.1.0 build e:\Microsoft\Workspace\React\myapp
> react-scripts build
Creating an optimized production build...
Failed to compile.
Failed to minify the code from this file:
Read more here:
npm ERR! errno 1
npm ERR! myapp#0.1.0 build: `react-scripts build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the myapp#0.1.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional
logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\yk\AppData\Roaming\npm-cache\_logs\2017-09-
The line that giving error is let missing; and seems like the let is causing the issue. Is there anything I can do with this?
Encountered this problem today. the doc suggests some solutions:
Open an issue on the dependency's issue tracker and ask that the package be published pre-compiled.
Fork the package and publish a corrected version yourself.
If the dependency is small enough, copy it to your src/ folder and treat it as application code.
Read more here:

“ionic cordova platform add ios” Failed to fetch platform cordova-ios#0.0.1

When I run "ionic cordova platform add ios", that got the following error. How to fix it?
Exception: Using cordova-fetch for cordova-ios#0.0.1
Error: Failed to fetch platform cordova-ios#0.0.1
Probably this is either a connection problem, or platform spec is incorrect.
Check your connection and platform name/version/URL.
Error: npm: Command failed with exit code 1 Error output:
npm ERR! code ETARGET
npm ERR! notarget No matching version found for cordova-ios#0.0.1
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/thanhnguyen/.npm/_logs/2017-08-25T10_34_19_961Z-debug.log
The following command should resolve the issue:
cordova platform add ios#latest

Error when using 'create-react-native-app'

I tried to create a new React Native app using the command create-react-native-app in the node.js terminal on my Windows system. I got the following terminal error:
D:\project>create-react-native-app crna
Creating a new React Native app in D:\project\crna.
Installing packages. This might take a couple minutes.
Installing react-native-scripts...
npm WARN deprecated fs-promise#1.0.0: Use mz or fs-extra^3.0 with Promise Suppor
npm WARN deprecated #exponent/spawn-async#1.2.8: Please switch to #expo/spawn-as
ync, the new name of this package. It's the same code with our new name.
npm ERR! shasum check failed for C:\Users\ui-admin\AppData\Local\Temp\npm-3204-a
npm ERR! Expected: 37fe66f922b1003da2a78c66b7d4d3bc9313e423
npm ERR! Actual: d134060eb730b880da06d5c040ca933f6a75b613
npm ERR! From:
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\ui-admin\AppData\Roaming\npm-cache\_logs\2017-05-26T09_36_
`npm install --save-dev --save-exact react-native-scripts` failed
Anyone met this error or fix it?
I got the same error, though in RubyMine, which provided the response that react-native doesn't work with npm 5 yet. it said you can either revert to npm 4 or feel free to log an issue here:
I think you're best bet would be to revert and wait it out!

kafka-node npm install failing on windows 7

I am new to apache kafka and trying to install their node client which is failing with the following message-
gyp ERR! stack Error: Python executable "python" is v3.4.1, which is not supported by gyp.
gyp ERR! stack You can pass the --python switch to point to Python >= v2.5.0 & < 3.0.0.
There's an optional dependency called snappy that requires compilation. This dependency has been made optional since kafka-node v0.3.3 and above so you can ignore any errors generated from npm install.