file_put_contents() generates errors in report status page

Process to regenerate the problem:

• Create a new site (no one will hit a page before the next few clicks)
• Turn on Boost
• Go to admin/reports/status

Then I get those two errors because the cache folder was not yet created:

• warning: file_put_contents(cache/perm/roundhomes.alexishouses.com/.boost) [function.file-put-contents]: failed to open stream: No such file or directory in .../drupal/sites/all/modules/boost/boost.install on line 77.
• warning: file_put_contents(cache/perm/roundhomes.alexishouses.com/.boost) [function.file-put-contents]: failed to open stream: No such file or directory in .../drupal/sites/all/modules/boost/boost.install on line 83.

In this case, the roundhomes.alexishouses.com folder does not exist yet. Going to the boost admin screen first fixes the problem.

Thank you.
Alexis