Prisma 3.9.x+ multiple clients being generated, and in the wrong Yarn 1 workspace

Bug description

In yarn 1 workspaces, sometimes prisma will create the .prisma folder at one or more of the nested workspaces’ node_modules.

Migrations and generation produces the client in the root node_modules/.prisma but when running inside a workspace, it picks a different prisma client, causing this error

In our case:

├── node_modules
│   ├── .prisma # 👈 this is good!
├── web
│   ├── node_modules
├── api
│   ├── node_modules
│   │   ├── .prisma  # 😨 whai?

Node version: v16.13.1 Yarn version: 1.23.0-20220130.1630 (set using yarn version classic)

How to reproduce

Reproduction is in this repo here:

• https://github.com/dac09/prisma-multiple-clients-repro
• To launch on gitpod: https://gitpod.io/#https://github.com/dac09/prisma-multiple-clients-repro

Steps to reproduce:

1. Check that theres no prisma folder in api/node_modules

ls -la api/node_modules

1. Go into api and generate prisma client

cd api && yarn rw prisma generate

1. Notice that prisma has now been generated in api node_modules

❯ ls -a api/node_modules
.       ..      .prisma

1. And to see the actual problem this causes run:

yarn rw prisma migrate dev
# equivalent to
# yarn prisma migrate dev --schema "./api/db/schema.prisma"

and then

yarn rw prisma db seed

And you should see:

PrismaClientKnownRequestError:
Invalid `db.post.create()` invocation in
/Users/dac09/Experiments/prisma-repro/scripts/seed.ts:24:41

  21
  22 Promise.all(
  23   posts.map(async (post) => {
→ 24     const newPost = await db.post.create(
  The table `main.Post` does not exist in the current database.
    at Object.request (/Users/dac09/Experiments/prisma-repro/node_modules/@prisma/client/runtime/index.js:39809:15)
    at PrismaClient._request (/Users/dac09/Experiments/prisma-repro/node_modules/@prisma/client/runtime/index.js:40637:18)
    at /Users/dac09/Experiments/prisma-repro/scripts/seed.ts:24:27
    at async Promise.all (index 0) {
  code: 'P2021',
  clientVersion: '3.10.0',
  meta: { table: 'main.Post' }

Expected behavior

Prisma should only generate client at root of the workspace, not in nested workspaces.

Prisma information

Schema: https://github.com/dac09/prisma-multiple-clients-repro/blob/main/api/db/schema.prisma Query: https://github.com/dac09/prisma-multiple-clients-repro/blob/main/api/src/services/posts/posts.ts#L6

Environment & setup

• OS: MacOS, Linux, Windows
• Database: Tested with SQLite, but likely problem with all DBs
• Node.js version: 16.13.1

Prisma Version

prisma                  : 3.10.0
@prisma/client          : 3.10.0
Current platform        : darwin-arm64
Query Engine (Node-API) : libquery-engine 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at node_modules/@prisma/engines/libquery_engine-darwin-arm64.dylib.node)
Migration Engine        : migration-engine-cli 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at node_modules/@prisma/engines/migration-engine-darwin-arm64)
Introspection Engine    : introspection-core 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at node_modules/@prisma/engines/introspection-engine-darwin-arm64)
Format Binary           : prisma-fmt 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at node_modules/@prisma/engines/prisma-fmt-darwin-arm64)
Default Engines Hash    : 73e60b76d394f8d37d8ebd1f8918c79029f0db86
Studio                  : 0.458.0

---

Mirrored Redwood Issue

https://github.com/redwoodjs/redwood/issues/4605

[dac09]

Last known working version (in Redwood world) - Prisma 3.8.1

@millsp hope this helps! ✌️

[thedavidprice]

@millsp Thank you so much! So you have transparency with our timeline, we are targeting March 21 for a “final” v1-rc, with stable v1 to follow within a couple of weeks. This is one of the last remaining issues on my radar — not meant to imply pressure but just so you know why I’m watching it more closely 😆