FYI, we just published our patched polymer-cli package on https://www.npmjs.com/package/@nuxeo/polymer-build . You should now be able to build the Nuxeo Web UI.

For the record, the patch is described in https://github.com/Polymer/polymer-build/pull/254.

Hi, I get the same error and no clue

Logs file here :

verbose stack Error: 404 Not Found: @nuxeo/polymer-build@^{2.0.0 3251 verbose stack at fetch.then.res (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\lib\fetchers\registry\fetch.js:42:19) 3251 verbose stack at tryCatcher (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\util.js:16:23) 3251 verbose stack at Promise.settlePromiseFromHandler (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\promise.js:512:31) 3251 verbose stack at Promise.settlePromise (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\promise.js:569:18) 3251 verbose stack at Promise.settlePromise0 (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\promise.js:614:10) 3251 verbose stack at Promise.settlePromises (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\promise.js:693:18) 3251 verbose stack at Async.drainQueue (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\async.js:133:16) 3251 verbose stack at Async.drainQueues (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\async.js:143:10) 3251 verbose stack at Immediate.Async.drainQueues (C:\Program Files\nodejs\node_modules\npm\node_modules\bluebird\js\release\async.js:17:14) 3251 verbose stack at runCallback (timers.js:789:20) 3251 verbose stack at tryOnImmediate (timers.js:751:5) 3251 verbose stack at processImmediate as _immediateCallback 3252 verbose cwd C:\Users\nuxeo\addons\nuxeo-web-ui 3253 verbose Windows_NT 10.0.14393 3254 verbose argv “C:\Program Files\nodejs\node.exe” “C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js” “install” 3255 verbose node v8.9.4 3256 verbose npm v5.6.0 3257 error code E404 3258 error 404 Not Found: @nuxeo/polymer-build@}2.0.0