Upgrading to Meteor1.5 : TypeError: module1.exportDefault is not a function

[Falieson]

Updated a project to 1.5.0 and started receiving the below error when running meteor test.

I have isolated this to a problem with updating to Meteor 1.5.x (1.5.1 too) by aligning all the packages listed in .meteor/packages with the package versions before upgrading.

Error

W20170724-13:11:49.212(-7)? (STDERR) /Users/sjcfmett/.meteor/packages/meteor-tool/.1.5.1.gda7tv++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/server-lib/node_modules/fibers/future.js:280
W20170724-13:11:49.247(-7)? (STDERR) 						throw(ex);
W20170724-13:11:49.247(-7)? (STDERR) 						^
W20170724-13:11:49.248(-7)? (STDERR)
W20170724-13:11:49.248(-7)? (STDERR) TypeError: module1.exportDefault is not a function
W20170724-13:11:49.248(-7)? (STDERR)     at meteorInstall.node_modules.meteor.practicalmeteor:mocha.meteor.src.setup.setupMochaClient.js (packages/practicalmeteor:mocha/meteor/src/setup/setupMochaClient.js:1:9)
W20170724-13:11:49.249(-7)? (STDERR)     at fileEvaluate (packages/modules-runtime.js:333:9)
W20170724-13:11:49.249(-7)? (STDERR)     at require (packages/modules-runtime.js:228:16)
W20170724-13:11:49.251(-7)? (STDERR)     at meteorInstall.node_modules.meteor.practicalmeteor:mocha.meteor.src.setup.index.js (packages/practicalmeteor:mocha/meteor/src/setup/index.js:1:150)
W20170724-13:11:49.252(-7)? (STDERR)     at fileEvaluate (packages/modules-runtime.js:333:9)
W20170724-13:11:49.252(-7)? (STDERR)     at require (packages/modules-runtime.js:228:16)
W20170724-13:11:49.252(-7)? (STDERR)     at meteorInstall.node_modules.meteor.practicalmeteor:mocha.meteor.src.index.js (packages/practicalmeteor:mocha/meteor/src/index.js:1:431)
W20170724-13:11:49.253(-7)? (STDERR)     at fileEvaluate (packages/modules-runtime.js:333:9)
W20170724-13:11:49.253(-7)? (STDERR)     at require (packages/modules-runtime.js:228:16)
W20170724-13:11:49.253(-7)? (STDERR)     at /private/var/folders/wz/73gq7k591wjbmk5zjf_1h5bnlwwdyw/T/meteor-test-run9yq19b/.meteor/local/build/programs/server/packages/practicalmeteor_mocha.js:8141:15
=> Exited with code: 1

Working Package 1.4.4.2

meteor-base@1.0.4             # Packages every Meteor app needs to have
mobile-experience@1.0.4       # Packages for a great mobile UX
mongo@1.1.17                   # The database Meteor supports right now
blaze-html-templates    # Compile .html files into Meteor Blaze views
reactive-var@1.0.11            # Reactive variable for tracker
tracker@1.1.3                 # Meteor's client-side reactive programming library

standard-minifier-css@1.3.4   # CSS minifier run for production mode
standard-minifier-js@2.0.0    # JS minifier run for production mode
es5-shim@4.6.15                # ECMAScript 5 compatibility for older browsers.
ecmascript@0.8.0-rc.5              # Enable ECMAScript2015+ syntax in app code

kadira:flow-router      # FlowRouter is a very simple router for Meteor
kadira:blaze-layout     # Layout manager for blaze (works well with FlowRouter)
less@2.7.9                    # Leaner CSS language


practicalmeteor:mocha             # A package for writing and running your meteor app and package tests with mocha
johanbrook:publication-collector  # Test a Meteor publication by collecting its output
fourseven:scss
arillo:flow-router-helpers
aldeed:simple-schema
aldeed:collection2@2.10.0
dburles:factory
accounts-ui@1.1.9
accounts-password@1.3.6
accounts-google@1.1.2
service-configuration
accounts-base@1.3.0
babel-compiler@6.20.0-pre.1
modules@0.10.0-pre.1
localstorage@1.2.0-pre.1
ecmascript-runtime-client@0.5.0-pre.1
ecmascript-runtime-server@0.5.0-pre.1
aldeed:collection2-core@1.2.0
alanning:roles

Broken Package 1.5.0

meteor-base@1.1.0             # Packages every Meteor app needs to have
mobile-experience@1.0.4       # Packages for a great mobile UX
mongo@1.1.18                   # The database Meteor supports right now
blaze-html-templates    # Compile .html files into Meteor Blaze views
reactive-var@1.0.11            # Reactive variable for tracker
tracker@1.1.3                 # Meteor's client-side reactive programming library

standard-minifier-css@1.3.4   # CSS minifier run for production mode
standard-minifier-js@2.1.0    # JS minifier run for production mode
es5-shim@4.6.15                # ECMAScript 5 compatibility for older browsers.
ecmascript@0.8.0              # Enable ECMAScript2015+ syntax in app code

kadira:flow-router      # FlowRouter is a very simple router for Meteor
kadira:blaze-layout     # Layout manager for blaze (works well with FlowRouter)
less@2.7.9                    # Leaner CSS language


practicalmeteor:mocha             # A package for writing and running your meteor app and package tests with mocha
johanbrook:publication-collector  # Test a Meteor publication by collecting its output
fourseven:scss
arillo:flow-router-helpers
aldeed:simple-schema
aldeed:collection2@2.10.0
dburles:factory
accounts-ui@1.1.9
accounts-password@1.3.6
accounts-google@1.2.0
service-configuration@1.0.11
accounts-base@1.3.0
babel-compiler@6.19.1
modules@0.9.0
localstorage@1.1.0
ecmascript-runtime-client@0.4.1
ecmascript-runtime-server@0.4.1
aldeed:collection2-core@1.2.0
alanning:roles
dynamic-import@0.1.0

Asked on Stack Overflow: https://stackoverflow.com/questions/45293117/mocha-testing-broken-after-upgrade-to-meteor-1-5-x