"error": "Unexpected token P in JSON at position 0"

[jlarmstrongiv]

Created a new issue (as requested by @janpio ) with a reproducible example.

I have been debugging this all night. The issue cannot be reproduced on mac. However, it causes errors on windows and unix (vscode online).

Here's a sample repo:
https://github.com/jlarmstrongiv/temp-prisma-template

Steps:

• cd temp-prisma-template
• yarn install
• npx prisma2 dev
• yarn generate
• yarn dev:nexus

[jlarmstrongiv]

See #985

[jlarmstrongiv]

Downgrading to 17.2 did not fix the issue for me

[janpio]

What errors are you getting? Please share the full error message.

[janpio]

Tried your reproduction:

Here's a sample repo:
https://github.com/jlarmstrongiv/temp-prisma-template

Steps:

• cd temp-prisma-template
• yarn install
• npx prisma2 dev
• yarn generate
• yarn dev:nexus

This worked perfectly fine for me:

C:\Users\Jan\Documents
λ cd throwaway\

C:\Users\Jan\Documents\throwaway
λ git clone https://github.com/jlarmstrongiv/temp-prisma-template 1162
Cloning into '1162'...
remote: Enumerating objects: 50, done.
remote: Counting objects: 100% (50/50), done.
remote: Compressing objects: 100% (34/34), done.
remote: Total 50 (delta 13), reused 49 (delta 12), pack-reused 0
Unpacking objects: 100% (50/50), done.

C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ yarn install
yarn install v1.17.3
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@2.1.2: The platform "win32" is incompatible with this module.
info "fsevents@2.1.2" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "graphql-yoga > graphql-playground-middleware-lambda@1.7.12" has unmet peer dependency "aws-lambda@^0.1.2".
warning "graphql-yoga > graphql-subscriptions@0.5.8" has incorrect peer dependency "graphql@^0.10.5 || ^0.11.3 || ^0.12.0 || ^0.13.0".
warning "graphql-yoga > apollo-server-express > apollo-server-core@1.4.0" has incorrect peer dependency "graphql@^0.9.0 || ^0.10.0 || ^0.11.0 || ^0.12.0 || ^0.13.0".
warning "graphql-yoga > apollo-server-express > apollo-server-core > apollo-cache-control@0.1.1" has incorrect peer dependency "graphql@0.10.x - 0.13.x".
warning "graphql-yoga > apollo-server-express > apollo-server-core > apollo-tracing@0.1.4" has incorrect peer dependency "graphql@0.10.x - 0.13.x".
warning "graphql-yoga > apollo-server-express > apollo-server-core > graphql-extensions@0.0.10" has incorrect peer dependency "graphql@0.10.x - 0.13.x".
[4/4] Building fresh packages...
success Saved lockfile.
warning Your current version of Yarn is out of date. The latest version is "1.21.1", while you're on "1.17.3".
Done in 45.43s.

C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ C:\Users\Jan\Documents\throwaway\1162
C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ npx prisma2 -v
prisma2@2.0.0-preview018.2, binary version: 3c4da1d6caa0c40a0210a346ec982c77f74e18c7

C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ npx prisma2 dev

   Watching for changes in prisma\schema.prisma
   Last changed at 21:50:10


   Migrations
   ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────  ✓ Database successfully migrated in 321ms
   To save changes into a migration file, run prisma2 lift save


   Generators
   ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────  ✓ Photon.js    Generated in 9.57s





















































   Studio endpoint: http://localhost:5555/
   ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
   d: diff
Terminate batch job (Y/N)?
^C
C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ yarn generate
yarn run v1.17.3
$ yarn -s generate:prisma && yarn -s generate:types && yarn -s generate:nexus
> Downloading Prisma engines for windows [====================] 100%

Generating Photon.js to .\node_modules\@prisma\photon
Done in 4.08s

npx: installed 2 in 3.465s
Created files success
'NODE_ENV' is not recognized as an internal or external command,
operable program or batch file.
error Command failed with exit code 1.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ yarn dev:nexus
yarn run v1.17.3
$ ts-node-dev --tree-kill --no-notify --respawn --transpile-only src/main.ts
Using ts-node version 8.4.1, typescript version 3.7.2
� Server ready at http://localhost:4000
Terminate batch job (Y/N)?
^CThe system cannot open the device or file specified.

C:\Users\Jan\Documents\throwaway\1162 (master -> origin)
λ http://localhost:4000

[jlarmstrongiv]

@janpio Did you go to localhost and try to make a query? I forgot to add that final step. The error occurs on localhost in the graphql playground

[janpio]

No, I followed the provided steps. Let me know which query to run and how and where (assume I know nothing about nexus and GraphQL).

[pantharshit00]

I am also not able to reproduce this.

I tried some queries and everything is in order:

[jlarmstrongiv]

Yea, we were able to reproduce it 11 times on Monday, but not once after that. The querying seems to work now, but not studio on localhost:5555.

New alphas were released after 2.0.0-alpha.453, but I haven't had time to check and see which versions were installed.

Strange stuff 🤷‍♂

[pantharshit00]

I am going to close this for now. Please comment here or open a new issue if this is still reproducable.