Hi everybody,

I'm using opensource Sugar 5.5.4.
When i try to upgrade it says "The zip file is missing a manifest.php file. Cannot proceed."

What should I do? I tried to download all types of upgrades and full versions - it always looks the same

Also maybe it'll help - at the top of the installation wizard there's an error list
Warning: Please upgrade 6.3.0 : The latest version of SugarCRM is 6.3.0. Please visit support.sugarcrm.com to acquire the latest version.

Warning: fopen(//cache/upload/upgrades/temp/upgrade_progress.php) [function.fopen]: failed to open stream: No such file or directory in /modules/UpgradeWizard/uw_utils.php on line 3459

Warning: touch() [function.touch]: Unable to create file //cache/upload/upgrades/temp/upgrade_progress.php because No such file or directory in /include/utils/sugar_file_utils.php on line 161

Warning: fopen(//cache/upload/upgrades/temp/upgrade_progress.php) [function.fopen]: failed to open stream: No such file or directory in /include/utils/sugar_file_utils.php on line 103

Thanks a lot in advance
Jan