In App Browser - fails on build

I followed the instructions in the docs for In App Browser feature in a blank project. I built it for ios and got:

The following build commands failed:
CompileC /Users/CERM/Library/Developer/Xcode/DerivedData/MyApp-flwlknnnrwkdlxdpufuxspefydqg/Build/Intermediates.noindex/ArchiveIntermediates/MyApp/IntermediateBuildFilesPath/ MyApp/Plugins/org.apache.cordova.inappbrowser/CDVInAppBrowser.m normal armv7 objective-c

I tried npm outdated and got:

npm ERR! Darwin 16.7.0
npm ERR! argv “/usr/local/bin/node” “/usr/local/bin/npm” "outdated"
npm ERR! node v6.9.4
npm ERR! npm v3.10.10
npm ERR! code E404

npm ERR! 404 Registry returned 404 for GET on