Meteor _this._launchConnection is not a function [SOLVED]

On a project I just did a package update

This project is already at Meteor, the latest release.
Changes to your projects package version selections from updating package versions:
accounts-ui-unstyled  upgraded from 1.4.0 to 1.4.1
babel-compiler        upgraded from 7.0.7 to 7.0.8
caching-compiler      upgraded from 1.1.11 to 1.1.12
ecmascript            upgraded from 0.10.7 to 0.10.8
facebook-oauth        upgraded from 1.4.0 to 1.4.1
http                  upgraded from 1.4.0 to 1.4.1
minifier-js           upgraded from 2.3.4 to 2.3.5
standard-minifier-js  upgraded from 2.3.3 to 2.3.4

but the client (browser) now fails to launch and this is the first error it throw

after that everything else stops parsing and the client shows “no route defined”

Has anybody else seen this?

Fixed by upgrading npm modules babel-runtime and @babel/runtime

    "@babel/runtime": "^7.0.0-beta.46",
    "babel-runtime": "^6.26.0",
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