"Unexpected token / in JSON"

[ehrencrona]

When using the command on an empty SvelteKit project I always get "Could not read the JSON file".

SvelteKit version [email protected]

Steps to reproduce:

pnpm init svelte@next addjest

✔ Which Svelte app template? › SvelteKit demo app. // i've tried skeleton app too with the same result
✔ Use TypeScript? … Yes
✔ Add ESLint for code linting? … No
✔ Add Prettier for code formatting? … Yes

cd addjest/
pnpm i
npx apply rossyman/svelte-add-jest

[ info ]  Applying preset rossyman/svelte-add-jest.
[ question ]  Enable Jest DOM support? (Y/n) · false
[ question ]  Enable TypeScript support? (y/N) · true
[ question ]  Generate example test file? (Y/n) · true
[ question ]  Enable JSDOM environment by default? (Y/n) · false
[ info ]  Adding required dependencies
[ info ]  Initializing Jest config
[ info ]  Initializing Babel config
[ info ]  Modifying TypeScript config for project
[ error ]  Could not read the JSON file.
SyntaxError: Unexpected token / in JSON at position 128
    at JSON.parse (<anonymous>)
    at EditJsonHandler.getContent (.../node_modules/apply/dist/Handlers/EditJsonHandler.js:58:50)
    at EditJsonHandler.handle (.../node_modules/apply/dist/Handlers/EditJsonHandler.js:28:42)
    at PresetApplier.performActions (.../node_modules/apply/dist/Applier/PresetApplier.js:78:27)

[yogenpoonudurai]

When using the command on an empty SvelteKit project I always get "Could not read the JSON file".

SvelteKit version [email protected]

Steps to reproduce:

pnpm init svelte@next addjest

✔ Which Svelte app template? › SvelteKit demo app. // i've tried skeleton app too with the same result
✔ Use TypeScript? … Yes
✔ Add ESLint for code linting? … No
✔ Add Prettier for code formatting? … Yes

cd addjest/
pnpm i
npx apply rossyman/svelte-add-jest

[ info ]  Applying preset rossyman/svelte-add-jest.
[ question ]  Enable Jest DOM support? (Y/n) · false
[ question ]  Enable TypeScript support? (y/N) · true
[ question ]  Generate example test file? (Y/n) · true
[ question ]  Enable JSDOM environment by default? (Y/n) · false
[ info ]  Adding required dependencies
[ info ]  Initializing Jest config
[ info ]  Initializing Babel config
[ info ]  Modifying TypeScript config for project
[ error ]  Could not read the JSON file.
SyntaxError: Unexpected token / in JSON at position 128
    at JSON.parse (<anonymous>)
    at EditJsonHandler.getContent (.../node_modules/apply/dist/Handlers/EditJsonHandler.js:58:50)
    at EditJsonHandler.handle (.../node_modules/apply/dist/Handlers/EditJsonHandler.js:28:42)
    at PresetApplier.performActions (.../node_modules/apply/dist/Applier/PresetApplier.js:78:27)

I faced the similar error. Removed the comments in the tsconfig.json file and ran the script again. And then it worked.

[rossyman]

Hi @ehrencrona and @firacloudtech -- We outlined this nuance within our README. Due to a lack of support from Preset to parse JSON-C files, this is something we cannot fix directly within our adder. I'm going to close this issue and mark it as wont-fix.

README Screenshot