[turborepo] Error while trying to run script with filter when filter eliminates all possible workspaces

[trappar]

What version of Turborepo are you using?

1.8.2

What package manager are you using / does the bug impact?

pnpm

What operating system are you using?

Mac

Describe the Bug

In my project, if I'm sitting in the main branch with a clean working copy and I try to run:

turbo --filter "[main]" lint

I get the following output

• Packages in scope: 
• Running lint in 0 packages
• Remote caching disabled

No tasks were executed as part of this run.

 Tasks:    0 successful, 0 total
Cached:    0 cached, 0 total
  Time:    66ms 

However, if I make a modification to a file in my monorepo's root that is not inside a specific package, and is not an input to any package, such as .gitignore, then I get the following output:

 ERROR  run failed: error preparing engine: Could not find the following tasks in project: lint
Turbo error: error preparing engine: Could not find the following tasks in project: lint

Expected Behavior

I should not be getting this error, and turbo should instead simply run no tasks.

To Reproduce

In a monorepo with turborepo, checkout main/master with a clean working copy, then modify the project's .gitignore and try running turbo --filter "[{branch}]" {script} where {branch} is your main/master branch and {script} is any script configured in the turbo.json pipelines.

I just tested and this can be replicated using the starter monorepo created via npx create-turbo@latest

Reproduction Repo

No response

[tknickman]

Hey @trappar, this should be fixed in 1.8.2 (released today)!

[trappar]

Oops, sorry I was mistaken in the bug report. I'm actually already on 1.8.2, and it's still occurring. I'll update my original issue to reflect that.

% turbo --version             
1.8.2
% turbo --filter "[main]" lint
 ERROR  run failed: error preparing engine: Could not find the following tasks in project: lint
Turbo error: error preparing engine: Could not find the following tasks in project: lint

Just double checked and both my globally installed and locally installed versions are at 1.8.2.

[trappar]

@tknickman could you please reopen? 😅

This appears to be an unfixed edge case of the issue that was fixed in 1.8.2.

[tknickman]

Ah, my fault @trappar, sorry about that! We'll take a look.

[tkstang]

I am experiencing this issue as well. Thanks for taking a look!

[mehulkar]

Thanks for the reporting @trappar and @tkstang! I was able to reproduce and the fix issue in #3951. We should hopefully get a new patch release out shortly (this issue will probably close on merge). The explanation for the bug is essentially the same as in https://github.com/vercel/turbo/issues/3896#issuecomment-1439193366. Apologies for the inconvenience!

[mehulkar]

Just an update: we released 1.8.3 with the fix: https://github.com/vercel/turbo/releases/tag/v1.8.3

[Tittoh]

I just created a new project and quick search on a similar error brought me here.

run failed: error preparing engine: Could not find the following tasks in project: hello
Turbo error: error preparing engine: Could not find the following tasks in project: hello

according to the docs, Understanding turbo.json the expected error is:

task `hello` not found in turbo `pipeline` in "turbo.json".
Are you sure you added it?

dev, lint and `build commands are working as expected.

v: 1.8.3

[mehulkar]

@Tittoh good catch. Could you file a new issue to update the docs? If you don’t get to it I’ll make a note to do this on Monday! The error message did indeed change

[arantespp]

I got this error with v: 1.8.3 and running lint from root (//#lint). My turbo.json config.

[nathanhammond]

@arantespp //#lint is how to address that root task.

[arantespp]

It's working now! It didn't work if I updated manually (yarn add -DW turbo), but it worked when I updated via codemod (npx @turbo/codemod update).

[rhkdgns95]

This issue can be resolved by downgrading the version to 1.10.4.

It's not an ideal solution.

[magicspon]

I'm seeing this issue as well

yarn lint - works turbo run link - works

but when either task is run via lint-staged i get:

✖ turbo run lint:
 ERROR  run failed: error preparing engine: Could not find the following tasks in project: _path_to_repo_/.lintstagedrc.js, _path_to_repo/apps/cms/src/globals/Seo.ts, _path_to_repo/apps/cms/src/seed.ts, _path_to_repo/apps/cms/src/singles/About.ts, _path_to_repo/apps/cms/src/singles/Home.ts, _path_to_repo/apps/web/src/app/page.tsx, _path_to_repo/packages/config/eslint/react-internal.js, _path_to_repo/packages/ui/index.tsx

repo: https://github.com/magicspon/next-payloadcms-mono

[mehulkar]

@magicspon since this is already closed a long time ago, can you please open a new issue (thanks for the repro!)

[magicspon]

@mehulkar done -> https://github.com/vercel/turbo/issues/6358