Guard::RSpec Fails with Errno::ENOENT: No such file or directory @ rb_sysopen - /app/tmp/rspec_guard_result

[rodrigotoledo]

I'm encountering an issue with Guard::RSpec where it fails to open the results file and raises an Errno::ENOENT exception. This occurs during the execution of tests, and it appears that the file /app/tmp/rspec_guard_result does not exist or cannot be accessed.

09:25:26 - ERROR - Guard::RSpec cannot open results file: "/app/tmp/rspec_guard_result". This is likely a bug so please report this at http://github.com/guard/guard-rspec/issues/new along with as much information as possible to reproduce this issue.
09:25:26 - ERROR - Guard::RSpec failed to achieve its <run_on_modifications>, exception was:
> [#] Errno::ENOENT: No such file or directory @ rb_sysopen - /app/tmp/rspec_guard_result

Steps to Reproduce:

Install and configure Guard::RSpec in a Rails project.
Run guard to start the Guard process.
Modify a file to trigger the run_on_modifications callback in Guard::RSpec.
Observe the error message in the console.
Expected Behavior: Guard::RSpec should create or access the results file in /app/tmp/rspec_guard_result without raising an ENOENT error.

Actual Behavior: The process fails with an Errno::ENOENT error, indicating that the file /app/tmp/rspec_guard_result could not be found or accessed.

Environment:

Guard Version: [Insert Version]
Guard::RSpec Version: [Insert Version]
RSpec Version: [Insert Version]
Ruby Version: [Insert Version]
Rails Version (if applicable): [Insert Version]
Operating System: [Insert OS and Version]
Additional Information:

The issue seems related to the file not being created or the directory /app/tmp/ not existing prior to the attempt to open the results file.
Any additional logs, configurations, or context that might help in debugging.
Proposed Solutions:

Ensure that Guard::RSpec creates the necessary directory and file before attempting to open them.
Add more detailed error handling around file operations to provide better diagnostics or automatic recovery.