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by edprochak
15 Jun 2018, 20:37
Forum: Help
Topic: Upgrade 1.2.4 to 2.15.0 install.php fails to run
Replies: 1
Views: 2731

Upgrade 1.2.4 to 2.15.0 install.php fails to run

OS: Windows server 2008R2
XAMPP configuration running only mantisbt
current version 1.2.4 Yeah very old
installing version 2.15.0

Error message:
Warning: require_once(C:\xampp\htdocs\mantis\vendor/autoload.php): failed to open stream: No such file or directory in C:\xampp\htdocs\mantis\core.php on ...