Integrity checksum failure while installing API Connect toolkit #apiconnect

Question

I\'m getting the following error while installing API Connect toolkit:

sha1-UhOHSxsj+deaxi0QbjKXDirzcn8= integrity checksum failed when using sha1: wa

Answer 1

I was also getting the same problem but solved by

(1st get older version of npm 4.x.x)

npm install -g npm@4.6.1

next optional in your case if you are building something and in your project package.lock.json is present delete package.lock.json (it means node version 5 is was installed hance some installers (like while deploying app on Heroku app) automatically detect this file and upgrade to version 5)

Now Try npm install it should work

Thank you

Answer 2

try again, add params ' --unsafe-perm=true ' npm install -g plugman --unsafe-perm=true

Answer 3

There are multiple solutions to this problem. I've encountered it many times and always different things helped me.

A. At first try cleaning the cache: npm cache clean --force then npm install

B. Second you can try npm install --update-binary

C. Third option is to try A and delete node_modules folder and then npm install

D. Fourth option is to uninstall nodejs reboot and reinstall and then try npm install

E. Last of my options which worked for me was to delete npm and npm-cache folders in Users%username%\AppData\Roaming and running npm install

You can try also other combinations usually its best to always do A and clean the cache at least or delete the node_modules folder.