Meteor 1.6 build failing with `require(...).ensureDependencies is not a function`

Hi trying to meteor build my project with 1.6 … (this worked fine with 1.5.2)

meteor build ../b7build_13nov --directory --mobile-settings production_settings.json --server=https://buzzy.buzz

error is

/Users/adamginsburg/.meteor/packages/huttonr_bootstrap3/.3.3.6_13.1qk5yij.fxax++os+web.browser+web.cordova/plugin.build-bootstrap3.os/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:165
      throw error;
      ^

TypeError: require(...).ensureDependencies is not a function
    at buildmessage.enterJob (/tools/cordova/index.js:33:10)
    at /tools/utils/buildmessage.js:359:18
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:352:34
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:350:23
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.enterJob (/tools/utils/buildmessage.js:324:26)
    at ensureDevBundleDependencies (/tools/cordova/index.js:27:16)
    at main.captureAndExit (/tools/cli/commands.js:1050:7)
    at /tools/utils/buildmessage.js:271:13
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:264:29
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:262:18
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:253:23
    at exports.EnvironmentVariable.withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.capture (/tools/utils/buildmessage.js:252:19)
    at Object.main.captureAndExit (/tools/cli/main.js:274:29)
    at buildCommand (/tools/cli/commands.js:1042:10)
    at Command.func (/tools/cli/commands.js:876:12)
    at /tools/cli/main.js:1522:15

We use huttonr:bootstrap3 Any ideas pls?