Postinstall script fails with PNPM workspaces due to npm ERR! Cannot read properties of null (reading 'matches')

[ErlanBelekov]

Bug description

When running pnpm install in a monorepo, with this structure

packages
    server
         prisma
               schema.prisma
    shared-utils
         package.json
    web
         package.json
pnpm-workspace.yaml
package.json

I get this error:

#0 2.239
#0 2.239 > @hub/shared-utils@1.0.0 generate /app/packages/shared-utils
#0 2.239 > pnpm prisma generate
#0 2.239
#0 36.80 Prisma schema loaded from ../server/prisma/schema.prisma
#0 451.1 npm ERR! Cannot read properties of null (reading 'matches')
#0 451.2
#0 451.2 npm ERR! A complete log of this run can be found in:
#0 451.2 npm ERR!     /root/.npm/_logs/2022-08-23T02_34_57_814Z-debug-0.log
#0 451.2 Error: Command failed with exit code 1: npm install -D prisma@3.15.2
#0 451.3 undefined
#0 451.3 /app/packages/shared-utils:
#0 451.3  ERR_PNPM_RECURSIVE_RUN_FIRST_FAIL  @hub/shared-utils@1.0.0 generate: `pnpm prisma generate`
#0 451.3 Exit status 1

my package shared-utils installs prisma, web depends on shared-utils

shared-utils has a custom postinstall script, which generates Prisma client from custom location(from server package).
This is package.json of shared-utils

{
  "name": "@example/shared-utils",
  "version": "1.0.0",
  "main": "dist/src/index.js",
  "types": "dist/src/index.d.ts",
  "private": true,
  "license": "MIT",
  "scripts": {
    "build": "rm -rf dist && tsc --build",
    "test": "jest",
    "precommit": "eslint --ext .ts \"*/**/*\" --fix && prettier --write .",
    "postinstall": "pnpm prisma generate"
  },
  "dependencies": {
    "currency.js": "^2.0.4",
    "@prisma/client": "3.15.2",
    "date-fns": "^2.28.0"
  },
  "devDependencies": {
    "@example/eslint-config": "1.0.0",
    "@example/prettier-config": "1.0.0",
    "prisma": "3.15.2"
  },
  "prisma": {
    "schema": "../server/prisma/schema.prisma"
  },
  "prettier": "@example/prettier-config",
  "jest": {
    "preset": "ts-jest",
    "roots": [
      "src"
    ],
    "modulePaths": [
      "src"
    ],
    "moduleDirectories": [
      "node_modules"
    ]
  }
}

How to reproduce

1. Go to project root.
2. Run pnpm install
3. See error

Expected behavior

pnpm install installs packages, and Prisma schema is generated automatically

Prisma information

Environment & setup

• OS: Mac OS,
• Database: PostgreSQL
• Node.js version: 16.13.1

Prisma Version

3.15.2

[ErlanBelekov]

works now magically

Edit: it doesn't, the issue is still here

[janpio]

Can you maybe create a new project, and generate the minimal setup that is required to reproduce this and put it on GitHub? That would be best for us to reproduce - and then potentially fix the issue. Thanks.

[ErlanBelekov]

sure @janpio , I'll try to do this in next few days approx.

[whexy]

Same problem here.
A temporary workaround is to use pnpm add @prisma/client after prisma generate.

[ErlanBelekov]

@whexy could you show the full code for workaround please?

[ErlanBelekov]

@janpio when will Prisma support PNPM? 👀

seems like this is related to these issues, but I still haven't managed to make it work
#9848
#12501

[ErlanBelekov]

adding public-hoist-pattern[]=*prisma* to .npmrc file fixed this issue, took the solution from here

#12921

[timmeade]

Same problem here. A temporary workaround is to use pnpm add @prisma/client after `prisma generateor

This worked for me

[heyfirst]

Same problem here. A temporary workaround is to use pnpm add @prisma/client after `prisma generateor

This worked for me too

[millsp]

Hey folks, we have just improved our pnpm detection logic to fix this issue, and we will release this in our 4.13.0 release. That said, you can try it now by installing our dev version. npm install prisma@dev. Feedback welcome!

[jlemrond]

@millsp Some feedback for you. Installed prisma@dev with pnpm, fixed the issue and worked like a charm. Thanks.