NoExplicitTypeError on Startup

[astangelo]

We're looking to use Type-GraphQL with our Prisma ORM. I feel like I've wired everything up correctly and I'm getting the following error on startup:

/sample/tasks-api/node_modules/type-graphql/dist/helpers/findType.js:19
        throw new errors_1.NoExplicitTypeError(prototype.constructor.name, propertyKey, parameterIndex, argName);
              ^


NoExplicitTypeError: Unable to infer GraphQL type from TypeScript reflection system. You need to provide explicit type for parameter #2 of 'aggregateTask' of 'TaskCrudResolver' class.
    at Object.findType (/sample/tasks-api/node_modules/type-graphql/dist/helpers/findType.js:19:15)
    at Object.getParamInfo (/sample/tasks-api/node_modules/type-graphql/dist/helpers/params.js:10:49)
    at <anonymous> (/sample/tasks-api/node_modules/type-graphql/dist/decorators/Args.js:12:25)
    at /sample/tasks-api/prisma/generated/type-graphql/resolvers/crud/Task/TaskCrudResolver.ts:2:1398
    at __decorateClass (/sample/tasks-api/prisma/generated/type-graphql/resolvers/crud/Task/TaskCrudResolver.ts:2:1229)
    at <anonymous> (/sample/tasks-api/prisma/generated/type-graphql/resolvers/crud/Task/TaskCrudResolver.ts:28:9)
    at Object.<anonymous> (/sample/tasks-api/prisma/generated/type-graphql/resolvers/crud/Task/TaskCrudResolver.ts:24:14)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Object.F (/sample/node_modules/@esbuild-kit/cjs-loader/dist/index.js:1:941)
    at Module.load (node:internal/modules/cjs/loader:1117:32)

Node.js v18.15.0

Obviously, all of these types and resolvers have been generated by way of typegraphql-prisma. And the second parameter seems to be typed. Plus, if I was to override the type, the generated file would be overwritten the next time I did a prisma generate.

Thoughts?

[MichalLytek]

you're using 3rd party compiler that does not emit types metadata, you need to enable emit redundant types in generator options

[astangelo]

At the risk of saying something stupid, I'm not using anything special. The only third-party generator that I'm using is this one, tyepgraphql-prisma. The top of my prisma.schema looks like this:

datasource mysql {
	provider		= "mysql"
	url			= env("MYSQL_ROOT_URL")
}

generator client {
	provider		= "prisma-client-js"
	output		= "./generated/prisma-client-js"
	binaryTargets	= ["native", "linux-musl-arm64-openssl-3.0.x"]
}

generator typegraphql {
	provider		= "typegraphql-prisma"
	output		= "./generated/type-graphql"
}

Am I missing something obvious?

[MichalLytek]

Do you use tsc to compile your TypeScript code, or bundler like swc, esbuild or babel?
Did you set up everything properly?
https://typegraphql.com/docs/installation.html

[ohadgk]

Hello, I'm having the exact same error, I set up everything based on this https://typegraphql.com/docs/installation.html
and this
https://prisma.typegraphql.com/docs/basics/installation ,
yet when I'm reciving the same error:

/root/projects/profet-turborepo/node_modules/.pnpm/[email protected][email protected][email protected]/node_modules/type-graphql/dist/helpers/findType.js:19
        throw new errors_1.NoExplicitTypeError(prototype.constructor.name, propertyKey, parameterIndex, argName);
              ^
NoExplicitTypeError: Unable to infer GraphQL type from TypeScript reflection system. You need to provide explicit type for parameter #2 of 'aggregateUser' of 'UserCrudResolver' class.

any suggestion?