modelcontextprotocol / modelcontextprotocol/ext-apps
fresh install of basic-host example fails
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bug
- Dominant language
- TypeScript
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- Merged PRs (30d)
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Description
Describe the bug
When getting started with the basic-host example, the generate-schemas script fails due to the package ts-to-zod not being installed.
To Reproduce
Steps to reproduce the behavior:
- clone this repo
- run
cd ext-apps/examples/basic-host - run
npm install
Logs
> tsx scripts/generate-schemas.ts && prettier --write "src/generated/**/*"
node:internal/modules/run_main:104
triggerUncaughtException(
^
Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'ts-to-zod' imported from /Users/sam/Developer/ext-apps/scripts/generate-schemas.ts
at Object.getPackageJSONURL (node:internal/modules/package_json_reader:267:9)
at packageResolve (node:internal/modules/esm/resolve:768:81)
at moduleResolve (node:internal/modules/esm/resolve:854:18)
at defaultResolve (node:internal/modules/esm/resolve:984:11)
at nextResolve (node:internal/modules/esm/hooks:748:28)
at resolveBase (file:///Users/sam/Developer/ext-apps/node_modules/tsx/dist/esm/index.mjs?1781172307493:2:3744)
at resolveDirectory (file:///Users/sam/Developer/ext-apps/node_modules/tsx/dist/esm/index.mjs?1781172307493:2:4243)
at resolveTsPaths (file:///Users/sam/Developer/ext-apps/node_modules/tsx/dist/esm/index.mjs?1781172307493:2:4984)
at resolve (file:///Users/sam/Developer/ext-apps/node_modules/tsx/dist/esm/index.mjs?1781172307493:2:5361)
at nextResolve (node:internal/modules/esm/hooks:748:28) {
code: 'ERR_MODULE_NOT_FOUND'
}
Node.js v23.11.0
npm error code 1
npm error path /ext-apps
npm error command failed
npm error command sh -c npm run build && husky
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start in ext-apps/examples/basic-host by running npm install and inspect the generate-schemas.ts entry point referenced in the error. Verify that a fresh install provides ts-to-zod and that the generate-schemas command and subsequent build complete successfully.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Clearly specified
- Newbie friendliness
- 78/100