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Uncaught TypeError: Cannot read properties of undefined (reading '__internal')
What versions & operating system are you using?
System: OS: Windows 11 10.0.26200 CPU: (8) x64 AMD Ryzen 5 7520U with Radeon Graphics Memory: 3.29 GB / 15.24 GB Binaries: Node: 22.15.0 - C:\Program Files\nodejs\node.EXE npm: 11.6.3 - C:\Program Files\nodejs\npm.CMD pnpm: 10.18.3 - C:\Users\Chris\AppData\Roaming\npm\pnpm.CMD bun: 1.3.3 - C:\Users\Chris\AppData\Roaming\npm\bun.CMD
Please provide a link to a minimal reproduction
dont have link...
Describe the Bug
Trying to build a Hono api with connection to cloudflare and d1. Building it with typescript with better-auth, Prisma v7, Hono and bun. When starting up the server I get an error.
⎔ Starting local server...
X [ERROR] service core:user:learnflow_lms-api: Uncaught TypeError: Cannot read properties of undefined (reading '__internal')
at null.<anonymous> (index.js:56045:17) in t
at null.<anonymous> (index.js:74625:17)
X [ERROR] The Workers runtime failed to start. There is likely additional logging output above.
This happend after I upgraded Prisma from version 6.19.0 to version 7.
I'm running the project in a monorepo, using Bvhr
// root/package.json
{
"name": "learnflow",
"version": "0.0.1",
"description": "LearnFlow – A modern Learning Management System (LMS) combining structured learning with real-time collaboration.",
"author": "Christopher Tønnesland",
"license": "MIT",
"homepage": "https://www.chrisdev.no",
"packageManager": "[email protected]",
"workspaces": [
"./server",
"./client",
"./shared"
],
"scripts": {
"dev": "turbo dev",
"dev:client": "turbo dev --filter=client",
"dev:server": "turbo dev --filter=server",
"build": "turbo build",
"build:client": "turbo build --filter=client",
"build:server": "turbo build --filter=server",
"lint": "biome lint .",
"type-check": "turbo type-check",
"test": "turbo test",
"postinstall": "turbo build --filter=shared --filter=server",
"format": "biome format . --write"
},
"keywords": [
"learning-management-system",
"lms",
"education",
"react",
"vite",
"hono",
"bun",
"better-auth",
"tanstack",
"monorepo",
"turbo"
],
"devDependencies": {
"@biomejs/biome": "^2.3.7",
"bun-types": "latest",
"turbo": "^2.5.5"
},
"peerDependencies": {
"typescript": "^5.7.3"
},
"dependencies": {
"better-auth": "^1.4.1",
"i18next": "^25.6.3",
"zod": "^4.1.13"
}
}
// server/package.json
{
"name": "server",
"version": "0.0.1",
"main": "dist/index.js",
"types": "dist/index.d.ts",
"scripts": {
"dev": "wrangler dev src/index.ts",
"dev:remote": "wrangler dev src/index.ts --remote",
"deploy": "wrangler deploy src/index.ts",
"prisma:generate": "prisma generate",
"prisma:migrate": "prisma migrate dev",
"prisma:studio": "prisma studio",
"prisma:pull": "prisma db pull",
"prisma:push": "prisma db push",
"prisma:reset": "prisma migrate reset --force",
"prisma:diff": "prisma migrate diff --from-empty --to-schema-datamodel ./src/libs/db/prisma/schema.prisma --script --output ./migrations/$(date +%s)_init.sql",
"prisma:seed": "prisma db seed",
"auth:generate": "bunx @better-auth/cli generate --config=src/auth-cli/cli-auth.ts",
"auth:sync": "bunx @better-auth/cli generate --config=src/auth-cli/cli-auth.ts --output src/libs/db/prisma/schema.prisma",
"d1:apply:local": "wrangler d1 migrations apply learnflow_lms_db --local",
"d1:apply:remote": "wrangler d1 migrations apply learnflow_lms_db --remote",
"d1:execute": "wrangler d1 execute learnflow_lms_db --local --file",
"d1:seed": "wrangler d1 execute learnflow_lms_db --remote --file src/libs/db/prisma/seed.sql",
"types:workers": "bunx wrangler types",
"types:env": "bun ./scripts/gen-env-types.ts",
"lint": "biome check --write .",
"format": "biome format --write .",
"build": "echo 'Cloudflare Workers has no local build step — using wrangler deploy'",
"test": "bun test",
"env:check": "bun ./scripts/check-env.ts",
"prepare": "prisma generate"
},
"dependencies": {
"@prisma/adapter-d1": "^7.0.0",
"@prisma/client": "^7.0.0",
"@prisma/extension-accelerate": "^2.0.2",
"bcrypt": "^6.0.0",
"better-auth": "^1.4.1",
"dotenv": "^17.2.3",
"hono": "^4.7.11",
"i18next": "^25.6.3",
"nodemailer": "^7.0.10",
"pino": "^10.1.0",
"shared": "workspace:*",
"zod": "^4.1.13"
},
"devDependencies": {
"@types/bcrypt": "^6.0.0",
"@types/bun": "latest",
"prisma": "^7.0.0",
"typescript": "^5.7.3",
"wrangler": "^4.50.0"
}
}
// wrangler.jsonc
{
"$schema": "../node_modules/wrangler/config-schema.json",
"name": "learnflow_lms-api",
"main": "src/index.ts",
"compatibility_date": "2025-07-18",
"observability": {
"enabled": true,
},
"compatibility_flags": ["nodejs_compat"],
"vars": {
"BETTER_AUTH_URL": "http://localhost:8787",
"BETTER_AUTH_SECRET": "wyf0......8eW",
},
"d1_databases": [
{
"binding": "DB",
"database_name": "learnflow_lms_db",
"database_id": "c1c.......2c410bd0",
"migrations_dir": "./src/libs/db/prisma/migrations/001_init_database.sql",
},
],
}
Please provide any relevant error logs
--- 2025-11-25T07:12:50.395Z debug
🪵 Writing logs to "C:\Users\~\AppData\Roaming\xdg.config\.wrangler\logs\wrangler-2025-11-25_07-12-49_858.log"
---
--- 2025-11-25T07:12:50.394Z debug
Metrics dispatcher: Posting data {"deviceId":"04f354f5-9ea1-404b-ac9c-6c76f65fbcf6","event":"wrangler command started","timestamp":1764054770394,"properties":{"amplitude_session_id":1764054770387,"amplitude_event_id":0,"wranglerVersion":"4.50.0","osPlatform":"Windows","osVersion":"Windows 11 Home","nodeVersion":22,"packageManager":"bun","isFirstUsage":false,"configFileType":"jsonc","isCI":false,"isPagesCI":false,"isWorkersCI":false,"isInteractive":true,"hasAssets":false,"argsUsed":[],"argsCombination":"","command":"wrangler dev","args":{}}}
---
--- 2025-11-25T07:12:50.430Z debug
.env file not found at "C:\Users\~\OneDrive\Desktop\learnflow_lms\server\.env.local". Continuing... For more details, refer to https://developers.cloudflare.com/workers/wrangler/system-environment-variables/
---
--- 2025-11-25T07:12:50.603Z log
⛅️ wrangler 4.50.0
───────────────────
---
--- 2025-11-25T07:12:50.653Z debug
setting config
---
--- 2025-11-25T07:12:50.654Z debug
Updating config... undefined undefined
---
--- 2025-11-25T07:12:50.790Z log
Using vars defined in .dev.vars
---
--- 2025-11-25T07:12:50.795Z log
Your Worker has access to the following bindings:
---
--- 2025-11-25T07:12:50.796Z log
Binding Resource Mode
---
--- 2025-11-25T07:12:50.797Z log
env.DB (learnflow_lms_db) D1 Database local
---
--- 2025-11-25T07:12:50.798Z log
env.BETTER_AUTH_URL ("http://localhost:8787") Environment Variable local
---
--- 2025-11-25T07:12:50.799Z log
env.BETTER_AUTH_SECRET ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.800Z log
env.NODE_ENV ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.801Z log
env.DATABASE_URL ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.802Z log
env.DIRECT_DATABASE_URL ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.803Z log
env.GITHUB_CLIENT_ID ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.804Z log
env.GITHUB_CLIENT_SECRET ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.805Z log
env.SMTP_HOST ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.805Z log
env.SMTP_PORT ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.806Z log
env.SMTP_SECURE ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.806Z log
env.SMTP_USER ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.809Z log
env.SMTP_PASS ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.815Z log
env.SMTP_FROM ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.817Z log
env.CLOUDFLARE_ACCOUNT_ID ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.818Z log
env.CLOUDFLARE_ZONE_ID ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.819Z log
env.CLOUDFLARE_DATABASE_ID ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.819Z log
env.CLOUDFLARE_D1_TOKEN ("(hidden)") Environment Variable local
---
--- 2025-11-25T07:12:50.820Z log
---
--- 2025-11-25T07:12:50.905Z log
❓ Your types might be out of date. Re-run `wrangler types` to ensure your types are correct.
---
--- 2025-11-25T07:12:53.395Z debug
Writing additional module to output C:\Users\~\OneDrive\Desktop\learnflow_lms\server\.wrangler\tmp\dev-VzbpVb\225d6627024026c76e82b46856fed8d6eaa49858-query_compiler_bg.wasm
---
--- 2025-11-25T07:12:53.423Z debug
RemoteRuntimeController teardown beginning...
---
--- 2025-11-25T07:12:53.424Z debug
RemoteRuntimeController teardown complete
---
--- 2025-11-25T07:12:53.474Z log
⎔ Starting local server...
---
--- 2025-11-25T07:12:53.537Z debug
[InspectorProxyWorker] handleProxyControllerIncomingMessage {"type":"reloadStart"}
---
--- 2025-11-25T07:12:54.925Z error
X [ERROR] service core:user:learnflow_lms-api: Uncaught TypeError: Cannot read properties of undefined (reading '__internal')
at null.<anonymous> (index.js:56045:17) in t
at null.<anonymous> (index.js:74625:17)
---
--- 2025-11-25T07:12:54.934Z debug
Error in LocalRuntimeController: Error reloading local server
MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.
at #assembleAndUpdateConfig (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:62409:13)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async Mutex.runWith (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:38880:48)
at async #waitForReady (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:62496:5)
at async #onBundleComplete (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\wrangler\wrangler-dist\cli.js:271340:33)
at async Mutex.runWith (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:38880:48) {
code: 'ERR_RUNTIME_FAILURE',
cause: undefined
}
---
--- 2025-11-25T07:12:54.935Z debug
=> Error contextual data: undefined
---
--- 2025-11-25T07:12:54.937Z log
---
--- 2025-11-25T07:12:54.943Z error
X [ERROR] The Workers runtime failed to start. There is likely additional logging output above.
---
--- 2025-11-25T07:12:54.944Z debug
MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.
at #assembleAndUpdateConfig (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:62409:13)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async Mutex.runWith (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:38880:48)
at async #waitForReady (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:62496:5)
at async #onBundleComplete (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\wrangler\wrangler-dist\cli.js:271340:33)
at async Mutex.runWith (C:\Users\~\OneDrive\Desktop\learnflow_lms\node_modules\miniflare\dist\src\index.js:38880:48)
---
--- 2025-11-25T07:12:54.944Z log
If you think this is a bug then please create an issue at https://github.com/cloudflare/workers-sdk/issues/new/choose
---
--- 2025-11-25T07:13:00.667Z debug
Sentry: Capturing exception MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.
---
--- 2025-11-25T07:13:00.677Z debug
Metrics dispatcher: Posting data {"deviceId":"04f354f5-9ea1-404b-ac9c-6c76f65fbcf6","event":"wrangler command errored","timestamp":1764054780677,"properties":{"amplitude_session_id":1764054770387,"amplitude_event_id":1,"wranglerVersion":"4.50.0","osPlatform":"Windows","osVersion":"Windows 11 Home","nodeVersion":22,"packageManager":"bun","isFirstUsage":false,"configFileType":"jsonc","isCI":false,"isPagesCI":false,"isWorkersCI":false,"isInteractive":true,"hasAssets":false,"argsUsed":[],"argsCombination":"","command":"wrangler dev","args":{},"durationMs":10357,"durationSeconds":10.357,"durationMinutes":0.17261666666666667}}
---
Hi @Christonn93,
Thanks for the detailed report. I tried reproducing this with a minimal hello world Worker using Prisma v7 but wasn't able to hit the same error.
To help us investigate further, could you share a minimal reproduction repo (or a stripped‑down version of your monorepo) that still triggers the __internal error? That will help us identify what's going wrong in your setup.
Hello @edmundhung
Thanks for quick response. I can add you as a contributor to the repository and share it that way. If that is okey. I have investigated more myself, and I figured out where its coming from, but not why its happening.
In the repository I have identified that it have to do with these files: server/src/routes/chat.ts server/src/services/chatService.ts
These are used inside here: server/src/index.ts
Hi @Christonn93,
Thanks for the offer! That said, a minimal public reproduction would be really helpful here - it makes debugging much easier and also benefits others who might run into the same issue.
Since you have already narrowed it down to chat.ts and chatService.ts, would you be able to extract just the relevant parts into a small standalone repo? Sometimes that process itself helps pinpoint the root cause too.
Let us know how it goes 👍🏼