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Colin Santry commented on LOG4NET-69: ------------------------------------- Hi, If getting the same issue, I'm using v1.2.10! I have just downloaded the 1.2.10 version today (23-Sep-2011). <log4net.Error>Exception during StringFormat: Input string was not in a correct format. <format>Reading config! User:{0} Domain:(1}</format><args>{test1, test2}</args></log4net.Error> Source line: log.DebugFormat("Reading config!\nUser:{0}\nDomain:(2}", "test1", "test2"); Is 1.2.10 the latest? according to SourceForge the latest is v1.2.0-beta8 ?! Regards, Colin > Exception thrown when *Format methods are given a malformed format string > ------------------------------------------------------------------------- > > Key: LOG4NET-69 > URL: https://issues.apache.org/jira/browse/LOG4NET-69 > Project: Log4net > Issue Type: Bug > Affects Versions: 1.2.9 > Reporter: Ron Grabowski > Assignee: Nicko Cadell > Priority: Critical > Fix For: 1.2.10 > > > FormatException thrown when *Format methods are given a malformed format > string: log.DebugFormat("Malformed {{,,,5}format{8}!"); > This statement: > log.DebugFormat("Malformed {{,,,5}format{8}!"); > throws the following exception: > [FormatException: Input string was not in a correct format.] > System.Text.StringBuilder.FormatError() > System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String > format, Object[] args) > System.String.Format(IFormatProvider provider, String format, Object[] > args) > log4net.Core.LogImpl.DebugFormat(String format, Object[] args) > which is consistent with the documentation for String.Format: > System.FormatException: The format item in format is invalid. -or- The > number indicating an argument to format is less than zero, or greater than or > equal to the number of specified objects to format. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira