Turbopack Error: Failed to write app endpoint /api/files/upload/route

[sweetcard]

Turbopack version: de6bc159
Next.js version: 16.0.3

Error message:

Turbopack Error: Failed to write app endpoint /api/files/upload/route

198.2 -----
198.2
207.9
207.9 > Build error occurred
207.9 Error [TurbopackInternalError]: Failed to write app endpoint /api/files/upload/route
207.9
207.9 Caused by:
207.9 - internal error: entered unreachable code
207.9
207.9 Debug info:
207.9 - Execution of get_all_written_entrypoints_with_issues_operation failed
207.9 - Execution of EntrypointsOperation::new failed
207.9 - Execution of all_entrypoints_write_to_disk_operation failed
207.9 - Execution of Project::emit_all_output_assets failed
207.9 - Execution of *emit_assets failed
207.9 - Execution of all_assets_from_entries_operation failed
207.9 - Execution of *all_assets_from_entries failed
207.9 - Execution of output_assets_operation failed
207.9 - Execution of ::output failed
207.9 - Failed to write app endpoint /api/files/upload/route
207.9 - Execution of AppEndpoint::output failed
207.9 - Execution of AppEndpoint::app_entry_chunks failed
207.9 - Execution of entry_chunk_group_asset failed
207.9 - Execution of ::entry_chunk_group failed
207.9 - internal error: entered unreachable code
207.9 at (TurbopackInternalError: Failed to write app endpoint /api/files/upload/route) {
207.9 type: 'TurbopackInternalError',
207.9 location: '/build/turbopack/crates/turbopack-core/src/chunk/chunk_group.rs:243:25'
207.9 }