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Description
Following the instructions to create a new app using npx create-mastra@latest, the created app has type errors. It is not immediately obvious what is wrong and how to fix it. Not a great first impression.
Tested with node 18, node 20, and node 22.
Full repro below.
~/GitHub/steadicat ‣ npx create-mastra@latest
┌ Mastra Create
│
◇ What do you want to name your project?
│ mastra-test
│
◇ Project created
│
◇ NPM dependencies installed
│
◇ mastra installed
│
◇ @mastra/core installed
│
◇ .gitignore added
│
└ Project created successfully
┌ Mastra Init
│
◇ Where should we create the Mastra files? (default: src/)
│ src/
│
◇ Choose components to install:
│ Agents
│
◇ Add tools?
│ Yes
│
◇ Select default provider:
│ Groq
│
◇ Enter your groq API key?
│ Skip for now
│
◇ Add example
│ Yes
│
◇
│
◇ ───────────────────────────────────────────────────────╮
│ │
│ │
│ Mastra initialized successfully! │
│ │
│ Add your GROQ_API_KEY as an environment variable │
│ in your .env.development file │
│ │
│ │
├──────────────────────────────────────────────────────────╯
│
└
To start your project:
cd mastra-test
npm run dev
~/GitHub/steadicat ‣ cd mastra-test
~/GitHub/steadicat/mastra-test ‣ tsc
zsh: correct tsc to gsc [nyae]? n
src/mastra/agents/index.ts:1:23 - error TS2307: Cannot find module '@mastra/core/agent' or its corresponding type declarations.
There are types at '/Users/stefano/GitHub/steadicat/mastra-test/node_modules/@mastra/core/dist/agent/index.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.
1 import { Agent } from '@mastra/core/agent';
~~~~~~~~~~~~~~~~~~~~
src/mastra/index.ts:2:24 - error TS2307: Cannot find module '@mastra/core/mastra' or its corresponding type declarations.
There are types at '/Users/stefano/GitHub/steadicat/mastra-test/node_modules/@mastra/core/dist/mastra/index.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.
2 import { Mastra } from '@mastra/core/mastra';
~~~~~~~~~~~~~~~~~~~~~
src/mastra/index.ts:3:30 - error TS2307: Cannot find module '@mastra/core/logger' or its corresponding type declarations.
There are types at '/Users/stefano/GitHub/steadicat/mastra-test/node_modules/@mastra/core/dist/logger/index.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.
3 import { createLogger } from '@mastra/core/logger';
~~~~~~~~~~~~~~~~~~~~~
src/mastra/tools/index.ts:1:28 - error TS2307: Cannot find module '@mastra/core/tools' or its corresponding type declarations.
There are types at '/Users/stefano/GitHub/steadicat/mastra-test/node_modules/@mastra/core/dist/tools/index.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.
1 import { createTool } from '@mastra/core/tools';
~~~~~~~~~~~~~~~~~~~~
src/mastra/tools/index.ts:31:21 - error TS7031: Binding element 'context' implicitly has an 'any' type.
31 execute: async ({ context }) => {
~~~~~~~
Found 5 errors in 3 files.
Errors Files
1 src/mastra/agents/index.ts:1
2 src/mastra/index.ts:2
2 src/mastra/tools/index.ts:1
~/GitHub/steadicat/mastra-test ‣ node --version
v22.13.1
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