@TaylorOtwell the new package.json worked for me! However, I'm now getting an error when running npm run dev. All of my assets compile, but at the very top you can see it says that it failed to compile with 1 error, however, it doesn't give any indication as to what error occurred. Here's my output from npm run dev:
ERROR Failed to compile with 1 errors
error
Asset Size Chunks Chunk Names
js/ajaxScorePassword.js 2.82 kB [emitted]
fonts/glyphicons-halflings-regular.eot?f4769f9bdb7466be65088239c12046d1 20.1 kB [emitted]
fonts/glyphicons-halflings-regular.ttf?e18bbf611f2a2e43afc071aa2f4e1512 45.4 kB [emitted]
fonts/glyphicons-halflings-regular.woff?fa2772327f55d8198301fdb8bcfc8158 23.4 kB [emitted]
fonts/glyphicons-halflings-regular.woff2?448c34a56d699c29117adc64c43affeb 18 kB [emitted]
/js/app.js 1.15 MB 0 [emitted] [big] /js/app
/css/app.css 745 kB 0 [emitted] [big] /js/app
mix-manifest.json 66 bytes [emitted]
js/ajaxFind.js 1.86 kB [emitted]
js/listSorter.js 551 bytes [emitted]
fonts/glyphicons-halflings-regular.svg?89889688147bd7575d6327160d64e760 109 kB [emitted]
js/ajaxPostcodeLookup.js 4.03 kB [emitted]
js/bootstrap-switch.min.js 15.7 kB [emitted]
css/bootstrap-switch.min.css 6.28 kB [emitted]
fonts/glyphicons-halflings-regular.eot 20.1 kB [emitted]
fonts/glyphicons-halflings-regular.woff2 18 kB [emitted]
fonts/glyphicons-halflings-regular.woff 23.4 kB [emitted]
fonts/glyphicons-halflings-regular.ttf 45.4 kB [emitted]
fonts/glyphicons-halflings-regular.svg 109 kB [emitted]
js/bootstrap/bootstrap-switch.min.js 15.7 kB [emitted]
How can solve this mix