Can't install getting long page of errors

I had no problem installing 1.6 version of Piwik. Now when I try to install 1.7 I get a page with all kinds of errors. Any suggestions on what I am doing wrong? I tried adding piwik both from ssh and ftp in binary, but still same problem.

Notice: require_once() [function.require-once]: 1. h->opened_path=[/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] h->filename=[/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] in /home/studs68/public_html/analytics/index.php on line 32

Notice: require_once() [function.require-once]: apc_cache_find [47863638] in /home/studs68/public_html/analytics/index.php on line 32

Notice: require_once() [function.require-once]: 2. h->opened_path=[/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] h->filename=[/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] in /home/studs68/public_html/analytics/index.php on line 32

Notice: require_once() [function.require-once]: apc_cache_make_file_entry: entry->data.file.filename is [/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] in /home/studs68/public_html/analytics/index.php on line 32

Notice: require_once() [function.require-once]: Inserting [/home/studs68/public_html/analytics/libs/upgradephp/upgrade.php] in /home/studs68/public_html/analytics/index.php on line 32

Notice: require_once() [function.require-once]: 1. h->opened_path=[/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] h->filename=[/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] in /home/studs68/public_html/analytics/index.php on line 33

Notice: require_once() [function.require-once]: apc_cache_find [47863268] in /home/studs68/public_html/analytics/index.php on line 33

Notice: require_once() [function.require-once]: 2. h->opened_path=[/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] h->filename=[/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] in /home/studs68/public_html/analytics/index.php on line 33

Notice: require_once() [function.require-once]: apc_cache_make_file_entry: entry->data.file.filename is [/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] in /home/studs68/public_html/analytics/index.php on line 33

Notice: require_once() [function.require-once]: Inserting [/home/studs68/public_html/analytics/core/testMinimumPhpVersion.php] in /home/studs68/public_html/analytics/index.php on line 33

It looks like you use apc.

Please restart Apache to clear the apc opcode cache.

There may be an apc setting to automatically flush its cache when it detects changed files.

Thank you for the reply. Turns out it was related to APC. Somehow I install in debug mode. Once I uninstalled APC and then reinstalled without debug, Piwik worked perfectly!

-Kim