I tryed to install flutter in the 2.6 v. wordpress and I get this message:
Plugin could not be activated because it triggered a fatal error.
Warning: include_once(RCCWP_Constant.php) [function.include-once]: failed to open stream: No such file or directory in /mnt/local/home/....../wp-content/plugins/fresh-page/main.php on line 17
Warning: include_once() [function.include]: Failed opening 'RCCWP_Constant.php' for inclusion (include_path='.:/usr/local/php5/lib/php:/usr/local/lib/php') in /mnt/local/home/......../wp-content/plugins/fresh-page/main.php on line 17
Warning: include_once(RCCWP_Application.php) [function.include-once]: failed to open stream: No such file or directory in /mnt/local/home/......./wp-content/plugins/fresh-page/main.php on line 18
etc etc