'Module not found' [nodemon] app crashed / não consigo fazer meu programa rodar

Boa tarde! Estou tendo problema com a falta de um modulo mas não sei o que fazer...

npm start

> roteiro@1.0.0 start /caminho/para/pasta/alura/1922-graphql
> nodemon -e js,json,graphql ./api/index.js

[nodemon] 2.0.15
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,json,graphql
[nodemon] starting `node ./api/index.js index.js`
internal/modules/cjs/loader.js:905
  throw err;
  ^

Error: Cannot find module '/caminho/para/pasta/alura/1922-graphql/index.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
    at Function.Module._load (internal/modules/cjs/loader.js:746:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:75:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}
[nodemon] app crashed - waiting for file changes before starting...

O que fazer? Obrigado pela atenção desde já!