SuperMemo error: SuperMemo error: Wrong repetition distribution for category no 1

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From: Ross E.
Sent: 18 February 2011 15:59
Subject: SuperMemo error: Wrong repetition distribution for category #1


Wrong repetition distribution for category #1
SuperMemo 2002 (Build 11.02, Aug 1, 2002)
Time: Feb 18, 2011, 15:58
--------------------SYSTEM DATA
New Windows 6.1 (Build 7600) 
Internet Explorer 7.0 (0) Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; HPNTDF; .NET4.0C)
User language: English (UK)
System language: English (UK)
Browser language: English (US)
Memory Used: 1.465 MB


  • please run File : Repair collection. This could be a simple statistical error caused by a crash that prevented saving some data. Collection repair should then solve it
  • if repair does not help, this could be related to a bug in older SuperMemos that would appear in very large collections. If you had more than 65,535 items in one of the categories of the repetition distribution, you could get this error. If possible, please send your KNO file to bug2011 AT supermemo DOT com. You could also write to help2011 AT supermemo DOT come to receive more help with resolving this issue.
  • there were two reports of this error occurring. One case was a simple recoverable error in the KNO file. The other case was reported for a collection with hundreds of thousands of elements that revealed the overflow bug. You will need more help if your case is caused by the collection size. Please get in touch via e-mail.