Hi all, After linking the master branch of log4net to my project and debugged it, the error vanished somehow. Now it is also working with actual NuGet package 2.0.15. I have no clue, as I see (but it is after midnight here) no difference in the app.config or anywhere else. The only thing I did in between was updating my Visual Studio 2022 and set the langiage to English.
Sorry to have bothered you, maybe I see tomorrow more clear! So for now we can close the case on this! BR Peter From: Wein, Peter Sent: Wednesday, July 26, 2023 12:51 AM To: 'log4net-user@logging.apache.org' <log4net-user@logging.apache.org<mailto:log4net-user@logging.apache.org>> Subject: log4net RollingFileAppender seems to have an issue writing to LOCALAPPDATA folder or in General to hard code C: Pathes, in opposite to FileAppender, which works flawlessly Hi all, I am new here, and hope for help, it might actually be, I found something like a bug or something! In the end, it ended up that fileAppender and RollingFileAppender differs in data file placement rules. The one accesses easily places on C the other not. My System: - Windows 10 [cid:image001.png@01D9BF74.095F1C80] [cid:image002.png@01D9BF74.095F1C80] - .Net 6 Framework - Visual Studio 2022 I was configuring a small example project with Log4Net. I followed the Tim Corey Example here: https://www.youtube.com/watch?v=2lAdQ_QwNww but also I used your very similar and even more simple example in your example code for .Net 2.0, c#. I ran every time into the same issues: FileAppender seems to work with this configuration: <appender name="FileAppender" type="log4net.Appender.FileAppender"> <file type="log4net.Util.PatternString" value="${LOCALAPPDATA}\Temp\ProgramX\log.log"/> <encoding value="utf-8" /> <!-- <datePattern value="yyyy-MM-dd'-log.txt'" /> --> <appendToFile value="true" /> <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%logger] %level - %message%newline%exception" /> </layout> </appender> And writes it for example here in LOCALAPPDATA or to my personal documents folder on C: drive. RollingFileAppender misses that and just didn't do nothing (taken from your example with very simple config, mine was a little extended): <appender name="file" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="log_rolling.txt"/> <appendToFile value="true" /> <rollingStyle value="Size" /> <maxSizeRollBackups value="5" /> <maximumFileSize value="25MB" /> <staticLogFileName value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %level %logger.%method[%line] - %message%newline" /> </layout> </appender> Even with a place directly to an externally SSD, it works: <appender name="file" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="E:\log_rolling.txt"/> <appendToFile value="true" /> <rollingStyle value="Size" /> <maxSizeRollBackups value="5" /> <maximumFileSize value="25MB" /> <staticLogFileName value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %level %logger.%method[%line] - %message%newline" /> </layout> </appender> And finally I was able to work out my example with the date (where is the documentation on "App.config log4net rules" btw. It was a bit hairy to find it out (most of the way many stackoverflow solutions): <appender name="file" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="E:\%date{yyyyMMdd}_log_rolling_file.log"/> <encoding value="utf-8" /> <appendToFile value="true" /> <rollingStyle value="Date" /> <maxSizeRollBackups value="100" /> <maximumFileSize value="25MB" /> <preserveLogFileNameExtension value="true" /> <staticLogFileName value="false" /> <datePattern value="_yyyyMMdd'.log'" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %level %logger.%method[%line] - %message%newline" /> </layout> </appender> So now it prints the date at the beginning because of my filename and at the end(because of the datePattern). I will prefer the filename extension at the beginning, cause then you can sort acc. to date! But my main problem to be reported here is: Why are FileAppender and RollingFileAppender act so differently because of the file placement? I need to roll out in my company without knowing each specific access rights resolution. So I guess there must be a little difference in handling these two Appender Types. Please help! Thanks in advance Peter ----- KOSTAL Automobil Elektrik GmbH & Co. KG - Sitz Lüdenscheid, Registergericht Iserlohn HRA 2854, phG Kostal Verwaltungsgesellschaft mbH, Wien, Österreich – Handelsgericht Wien FN 494989 a - USt-Id-Nr./Vat No.: DE 125800885 Post- und Werksanschrift: An der Bellmerei 10, D-58513 Lüdenscheid * Telefon: +49 2351 16-0 * Telefax: +49 2351 16-2400 Bellmerei Geschäftsführung: Dipl.-Ing. Kai Knickmann (Vorsitzender), Dr.-Ing. Tino Naumann, Dipl.-Ing. Jörg Schwerak, Dipl.-Ing. Hansjörg Herrmann The information contained in this email and any attachment herein is strictly confidential. It is exclusively addressed to the intended addressee(s). 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