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Warning: Attempt to read property "dirroot" on null in C:\Apache24\htdocs\moodle\backup\converter\imscc11\lib.php on line 12

Warning: require_once(/backup/converter/convertlib.php): Failed to open stream: No such file or directory in C:\Apache24\htdocs\moodle\backup\converter\imscc11\lib.php on line 12

Fatal error: Uncaught Error: Failed opening required '/backup/converter/convertlib.php' (include_path='.;C:\php\pear') in C:\Apache24\htdocs\moodle\backup\converter\imscc11\lib.php:12 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\moodle\backup\converter\imscc11\lib.php on line 12