Turbopack Error: Next.js package not found

[leoyoon17]

Currently running Yarn 4 and yarn dev with turbopack throws the following error. Next.js 15.3.2 is currently installed and yarn dev with webpack works as expected.

Turbopack version: d9ec4a4b

Error message:

Next.js package not found

Debug info:
- Execution of get_entrypoints_with_issues_operation failed
- Execution of EntrypointsOperation::new failed
- Execution of Project::entrypoints failed
- Execution of AppProject::routes failed
- Execution of directory_tree_to_entrypoints_internal failed
- Execution of directory_tree_to_loader_tree failed
- Execution of get_next_package failed
- Next.js package not found

[deepaucksharma]

#80027 (comment) hope this helps

[leoyoon17]

Unfortunately, the suggestions didn't work for my setup... Here are my current project specs
package.json

Node V22.9.0
Yarn V4.9.1
Front-end and back-end are on separate repos