How do i fix "npm does not support Node.js v12.14.1" when they came from the same LTS download?

Truthfully this has never happened with me on any development environment My node version: 12.14.1 My npm version: 6.13.4

I was building a Gatsby Site using Sanity.io as a CRM and Im getting this error:

ahinds$ npm run dev

> [email protected] dev /Users/ahinds/Desktop/AHinds/dev/LMPropertyMgmt
> lerna run dev --parallel

lerna notice cli v3.20.2
lerna info Executing command in 2 packages: "npm run dev"
sanity-gatsby-blog-web: npm WARN npm npm does not support Node.js v12.14.1
sanity-gatsby-blog-web: npm WARN npm You should probably upgrade to a newer version of node as we
sanity-gatsby-blog-web: npm WARN npm can't make any promises that npm will work with this version.
sanity-gatsby-blog-web: npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9, 10.
sanity-gatsby-blog-web: npm WARN npm You can find the latest version at https://nodejs.org/
sanity-gatsby-blog-studio: npm WARN npm npm does not support Node.js v12.14.1
sanity-gatsby-blog-studio: npm WARN npm You should probably upgrade to a newer version of node as we
sanity-gatsby-blog-studio: npm WARN npm can't make any promises that npm will work with this version.
sanity-gatsby-blog-studio: npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9, 10.
sanity-gatsby-blog-studio: npm WARN npm You can find the latest version at https://nodejs.org/
sanity-gatsby-blog-web: > [email protected] dev /Users/ahinds/Desktop/AHinds/dev/LMPropertyMgmt/web
sanity-gatsby-blog-web: > npm run clean-cache && gatsby develop
sanity-gatsby-blog-studio: > [email protected] dev /Users/ahinds/Desktop/AHinds/dev/LMPropertyMgmt/studio
sanity-gatsby-blog-studio: > sanity start
sanity-gatsby-blog-web: npm WARN npm npm does not support Node.js v12.14.1
sanity-gatsby-blog-web: npm WARN npm You should probably upgrade to a newer version of node as we
sanity-gatsby-blog-web: npm WARN npm can't make any promises that npm will work with this version.
sanity-gatsby-blog-web: npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9, 10.
sanity-gatsby-blog-web: npm WARN npm You can find the latest version at https://nodejs.org/
sanity-gatsby-blog-studio: Error occured trying to resolve project root:
sanity-gatsby-blog-studio: Unexpected token ] in JSON at position 425
sanity-gatsby-blog-studio: npm ERR! code ELIFECYCLE
sanity-gatsby-blog-studio: npm ERR! errno 1
sanity-gatsby-blog-studio: npm ERR! [email protected] dev: `sanity start`
sanity-gatsby-blog-studio: npm ERR! Exit status 1
sanity-gatsby-blog-studio: npm ERR! 
sanity-gatsby-blog-studio: npm ERR! Failed at the [email protected] dev script.
sanity-gatsby-blog-studio: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
sanity-gatsby-blog-web: > [email protected] clean-cache /Users/ahinds/Desktop/AHinds/dev/LMPropertyMgmt/web
sanity-gatsby-blog-web: > gatsby clean
sanity-gatsby-blog-studio: npm ERR! A complete log of this run can be found in:
sanity-gatsby-blog-studio: npm ERR!     /Users/ahinds/.npm/_logs/2020-02-14T21_27_42_015Z-debug.log
lerna ERR! npm run dev exited 1 in 'sanity-gatsby-blog-studio'
lerna ERR! npm run dev stdout:

> [email protected] dev /Users/ahinds/Desktop/AHinds/dev/LMPropertyMgmt/studio
> sanity start


lerna ERR! npm run dev stderr:
npm WARN npm npm does not support Node.js v12.14.1
npm WARN npm You should probably upgrade to a newer version of node as we
npm WARN npm can't make any promises that npm will work with this version.
npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9, 10.
npm WARN npm You can find the latest version at https://nodejs.org/
Error occured trying to resolve project root:
Unexpected token ] in JSON at position 425
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] dev: `sanity start`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/ahinds/.npm/_logs/2020-02-14T21_27_42_015Z-debug.log

lerna ERR! npm run dev exited 1 in 'sanity-gatsby-blog-studio'
lerna WARN complete Waiting for 1 child process to exit. CTRL-C to exit immediately.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] dev: `lerna run dev --parallel`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/ahinds/.npm/_logs/2020-02-14T21_27_42_097Z-debug.log

Any idea why this version of node wouldn't work with this version of npm? I installed both from the NOde.js website so they were packaged together.

Here is my Repo

Solution

So I am pretty much sure that here is your problem

sanity-gatsby-blog-studio: Error occured trying to resolve project root:
sanity-gatsby-blog-studio: Unexpected token ] in JSON at position 425

Don't bother with WARNs that's alright

EDIT 1

Try to delete package-lock.json and node_modules, and do npm install, and try then

EDIT 2

After analyzing code error is in studio -> sanity.json

I can make pull request if you want, but it's small change so go try :)