fatal error 'include/plugin_api.inc.php'

[ecom_user]

hello,

I installed the last stable version 1.4.12. After succesfull installation I don't reach the login-screen.
Instead I have the folling error:
Fatal error: main() [function.require]: Failed opening required 'include/plugin_api.inc.php' (include_path='.:/usr/local/lib/php') in .../cpg/include/init.inc.php on line 222

who can help?

Thanks
ecom_user

[Sami]

welcome to community
re-upload plugin_api.inc.php to include folder