Sinon not installing while doing npm install

Question

I am doing

npm install Sinon

the error that I am getting is

32 verbose stack Error: 404 Not Found: @sinonjs/formatio@^2.0.0 32 verbose stack at fetch.then.res (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\pacote\lib\fetchers\registry\fetch.js:42:19) 32 verbose stack at tryCatcher (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\util.js:16:23) 32 verbose stack at Promise._settlePromiseFromHandler (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:512:31) 32 verbose stack at Promise._settlePromise (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:569:18) 32 verbose stack at Promise._settlePromise0 (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:614:10) 32 verbose stack at Promise._settlePromises (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:693:18) 32 verbose stack at Async._drainQueue (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:133:16) 32 verbose stack at Async._drainQueues (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:143:10) 32 verbose stack at Immediate.Async.drainQueues (C:\Users\gvqc48\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:17:14) 32 verbose stack at runCallback (timers.js:789:20) 32 verbose stack at tryOnImmediate (timers.js:751:5) 32 verbose stack at processImmediate [as _immediateCallback] (timers.js:722:5) 34 verbose Windows_NT 10.0.15063 35 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\gvqc48\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "install" "sinon" "--save-dev" 36 verbose node v8.9.4 37 verbose npm v5.7.1 38 error code E404 39 error 404 Not Found: @sinonjs/formatio@^2.0.0 40 verbose exit [ 1, true ]

I am running

Node 8.9.4

Npm 5.7.1

Answer 1

There's apparently some issue with the encodeURI. Which can be caused by a lot of things. The sloped slashdot for scoped packages gets turned into %2f, so you get a 404 package not found. Long story short, removing the ~/.npmrc file fixed it for me. Be careful to back it up since it may also contain useful stuff in there.

Have a look here and the links in the threat: https://github.com/sinonjs/formatio/issues/14#issuecomment-371681402