log4net:WARN Cannot RollFile -> Source does not exist #208

rosennej · 2024-11-10T07:57:13Z

rosennej
Nov 10, 2024

I keep getting this error. I am using version 3.0.3 on Windows 11 and .NET 6.
This is the configuration file

<?xml version="1.0" encoding="utf-8" ?>
<log4net>
	<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
        <file type="log4net.Util.PatternString" value="${LOCALAPPDATA}\QSM Programming Ltd\QCrypto\QVerify.log" />
		<rollingStyle value="Composite" />
		<datePattern value="yyyyMMdd" />
		<maxSizeRollBackups value="100" />
		<maximumFileSize value="10MB" />
		<appendToFile value="false" />
		<param name="ImmediateFlush" value="true" />
		<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
		<layout type="log4net.Layout.PatternLayout">
			<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
		</layout>
	</appender>
	<root>
		<level value="DEBUG" />
		<appender-ref ref="RollingFileAppender"/>
	</root>
</log4net>

FreeAndNil · 2024-11-10T14:31:52Z

FreeAndNil
Nov 10, 2024
Collaborator

@rosennej can you provide a file listing?

PS> ls "$($env:LOCALAPPDATA)\QSM Programming Ltd\QCrypto"

And provide the full log message?

$"Cannot RollFile [{fromFile}] -> [{toFile}]. Source does not exist"

We need to know which file was tried to rename.

0 replies

rosennej · 2024-11-10T17:24:19Z

rosennej
Nov 10, 2024
Author

The file list is:


 Volume in drive C is OS
 Volume Serial Number is 5ECA-2CA7

 Directory of C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto

11/10/2024  12:00 PM    <DIR>          .
11/10/2024  11:59 AM    <DIR>          ..
11/10/2024  12:00 PM               162 QCrypto.config
11/10/2024  12:00 PM             1,321 QVerify.log
11/10/2024  11:58 AM             1,329 QVerify.log.1
11/10/2024  10:11 AM               227 QVerify.log.10
11/10/2024  10:10 AM             1,292 QVerify.log.11
11/10/2024  09:58 AM             1,047 QVerify.log.12
11/10/2024  09:58 AM             1,047 QVerify.log.13
11/10/2024  09:49 AM             1,047 QVerify.log.14
11/10/2024  09:35 AM             1,047 QVerify.log.15
11/10/2024  09:33 AM             1,033 QVerify.log.16
11/10/2024  09:32 AM             1,106 QVerify.log.17
11/10/2024  09:30 AM             1,397 QVerify.log.18
11/10/2024  09:27 AM             1,143 QVerify.log.19
11/10/2024  11:48 AM               197 QVerify.log.2
11/10/2024  09:22 AM             1,070 QVerify.log.20
11/10/2024  09:21 AM             1,073 QVerify.log.21
11/10/2024  09:16 AM             1,073 QVerify.log.22
11/10/2024  09:14 AM             1,071 QVerify.log.23
11/10/2024  09:13 AM               369 QVerify.log.24
11/10/2024  09:07 AM             1,081 QVerify.log.25
11/10/2024  11:47 AM               192 QVerify.log.3
11/10/2024  11:43 AM               131 QVerify.log.4
11/10/2024  11:31 AM               131 QVerify.log.5
11/10/2024  11:29 AM               131 QVerify.log.6
11/10/2024  10:18 AM             1,307 QVerify.log.7
11/10/2024  10:17 AM             1,251 QVerify.log.8
11/10/2024  10:12 AM             1,295 QVerify.log.9
11/08/2024  08:21 PM               462 QVerify.log20241108
11/08/2024  08:19 PM               462 QVerify.log20241108.1
11/09/2024  07:47 PM             1,018 QVerify.log20241109
11/09/2024  07:32 PM             1,018 QVerify.log20241109.1
11/09/2024  06:43 PM               225 QVerify.log20241109.10
11/09/2024  06:40 PM               225 QVerify.log20241109.11
11/09/2024  06:38 PM               937 QVerify.log20241109.12
11/09/2024  06:29 PM               937 QVerify.log20241109.13
11/09/2024  06:28 PM               225 QVerify.log20241109.14
11/09/2024  06:16 PM               225 QVerify.log20241109.15
11/09/2024  06:13 PM               225 QVerify.log20241109.16
11/09/2024  06:12 PM               858 QVerify.log20241109.17
11/09/2024  06:08 PM               858 QVerify.log20241109.18
11/09/2024  06:06 PM               858 QVerify.log20241109.19
11/09/2024  07:20 PM             1,839 QVerify.log20241109.2
11/09/2024  06:01 PM               858 QVerify.log20241109.20
11/09/2024  05:58 PM               225 QVerify.log20241109.21
11/09/2024  05:56 PM               366 QVerify.log20241109.22
11/09/2024  05:56 PM               225 QVerify.log20241109.23
11/09/2024  07:19 PM             1,839 QVerify.log20241109.3
11/09/2024  07:17 PM             1,663 QVerify.log20241109.4
11/09/2024  07:07 PM               225 QVerify.log20241109.5
11/09/2024  07:01 PM               225 QVerify.log20241109.6
11/09/2024  06:58 PM               225 QVerify.log20241109.7
11/09/2024  06:56 PM             1,690 QVerify.log20241109.8
11/09/2024  06:52 PM             1,690 QVerify.log20241109.9
              53 File(s)         43,173 bytes
               2 Dir(s)  21,056,380,928 bytes free

3 replies

rosennej Nov 10, 2024
Author

Unfortunately the problem does not occur now. We will see in the next few days.

FreeAndNil Nov 10, 2024
Collaborator

Thanks for the list.
Please post an updated file list in case the error occurs again.

Just to be sure: there is only one application writing logs in this directory?

FreeAndNil Nov 10, 2024
Collaborator

Another question: Why is "appendToFile" false?
I've never seen this when using RollingFileAppender. It's at least uncommon.

rosennej · 2024-11-10T20:58:58Z

rosennej
Nov 10, 2024
Author

Yes, there is only one application writing logs in this directory.

0 replies

rosennej · 2024-11-10T21:47:38Z

rosennej
Nov 10, 2024
Author

See https://logging.apache.org/log4net/release/config-examples.html "This example show how to configure the RollingFileAppender to roll log files once per program execution. The appendToFile property is set to false to prevent the appender from overwriting the existing files."

1 reply

FreeAndNil Nov 10, 2024
Collaborator

So you want one log file for each program execution?
If this is what you want, then this is the way ;-)

rosennej · 2024-11-10T22:19:58Z

rosennej
Nov 10, 2024
Author

It happened again. I suspect it is a problem with Windows or Visual Studio rather than with Log4net. The folder does not get properly released after the program being tested was aborted. The problem goes away after VS is restarted. I have a similar problem of folders not being released with Eclipse and Maven.

This is the console:

log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.34] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.35]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.33] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.34]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.32] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.33]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.31] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.32]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.30] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.31]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.29] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.30]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.28] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.29]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.27] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.28]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.26] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.27]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.25] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.26]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.24] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.25]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.23] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.24]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.22] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.23]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.21] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.22]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.20] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.21]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.19] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.20]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.18] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.19]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.17] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.18]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.16] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.17]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.15] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.16]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.14] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.15]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.13] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.14]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.12] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.13]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.11] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.12]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.10] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.11]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.9] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.10]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.8] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.9]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.7] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.8]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.6] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.7]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.5] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.6]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.4] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.5]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.3] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.4]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.2] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.3]. Source does not exist
log4net:WARN Cannot RollFile [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.1] -> [C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto\QVerify.log.2]. Source does not exist

These are the files:

C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto>dir
 Volume in drive C is OS
 Volume Serial Number is 5ECA-2CA7

 Directory of C:\Users\Jony\AppData\Local\QSM Programming Ltd\QCrypto

11/11/2024  12:08 AM    <DIR>          .
11/10/2024  11:59 AM    <DIR>          ..
11/10/2024  11:48 PM               162 QCrypto.config
11/11/2024  12:08 AM               431 QVerify.log
11/11/2024  12:04 AM               431 QVerify.log.1
11/08/2024  08:21 PM               462 QVerify.log20241108
11/08/2024  08:19 PM               462 QVerify.log20241108.1
11/09/2024  07:47 PM             1,018 QVerify.log20241109
11/09/2024  07:32 PM             1,018 QVerify.log20241109.1
11/09/2024  06:43 PM               225 QVerify.log20241109.10
11/09/2024  06:40 PM               225 QVerify.log20241109.11
11/09/2024  06:38 PM               937 QVerify.log20241109.12
11/09/2024  06:29 PM               937 QVerify.log20241109.13
11/09/2024  06:28 PM               225 QVerify.log20241109.14
11/09/2024  06:16 PM               225 QVerify.log20241109.15
11/09/2024  06:13 PM               225 QVerify.log20241109.16
11/09/2024  06:12 PM               858 QVerify.log20241109.17
11/09/2024  06:08 PM               858 QVerify.log20241109.18
11/09/2024  06:06 PM               858 QVerify.log20241109.19
11/09/2024  07:20 PM             1,839 QVerify.log20241109.2
11/09/2024  06:01 PM               858 QVerify.log20241109.20
11/09/2024  05:58 PM               225 QVerify.log20241109.21
11/09/2024  05:56 PM               366 QVerify.log20241109.22
11/09/2024  05:56 PM               225 QVerify.log20241109.23
11/09/2024  07:19 PM             1,839 QVerify.log20241109.3
11/09/2024  07:17 PM             1,663 QVerify.log20241109.4
11/09/2024  07:07 PM               225 QVerify.log20241109.5
11/09/2024  07:01 PM               225 QVerify.log20241109.6
11/09/2024  06:58 PM               225 QVerify.log20241109.7
11/09/2024  06:56 PM             1,690 QVerify.log20241109.8
11/09/2024  06:52 PM             1,690 QVerify.log20241109.9
11/10/2024  11:57 PM               431 QVerify.log20241110
11/10/2024  11:54 PM               431 QVerify.log20241110.1
11/10/2024  11:58 AM             1,329 QVerify.log20241110.10
11/10/2024  11:48 AM               197 QVerify.log20241110.11
11/10/2024  11:47 AM               192 QVerify.log20241110.12
11/10/2024  11:43 AM               131 QVerify.log20241110.13
11/10/2024  11:31 AM               131 QVerify.log20241110.14
11/10/2024  11:29 AM               131 QVerify.log20241110.15
11/10/2024  10:18 AM             1,307 QVerify.log20241110.16
11/10/2024  10:17 AM             1,251 QVerify.log20241110.17
11/10/2024  10:12 AM             1,295 QVerify.log20241110.18
11/10/2024  10:11 AM               227 QVerify.log20241110.19
11/10/2024  11:53 PM               431 QVerify.log20241110.2
11/10/2024  10:10 AM             1,292 QVerify.log20241110.20
11/10/2024  09:58 AM             1,047 QVerify.log20241110.21
11/10/2024  09:58 AM             1,047 QVerify.log20241110.22
11/10/2024  09:49 AM             1,047 QVerify.log20241110.23
11/10/2024  09:35 AM             1,047 QVerify.log20241110.24
11/10/2024  09:33 AM             1,033 QVerify.log20241110.25
11/10/2024  09:32 AM             1,106 QVerify.log20241110.26
11/10/2024  09:30 AM             1,397 QVerify.log20241110.27
11/10/2024  09:27 AM             1,143 QVerify.log20241110.28
11/10/2024  09:22 AM             1,070 QVerify.log20241110.29
11/10/2024  11:52 PM               431 QVerify.log20241110.3
11/10/2024  09:21 AM             1,073 QVerify.log20241110.30
11/10/2024  09:16 AM             1,073 QVerify.log20241110.31
11/10/2024  09:14 AM             1,071 QVerify.log20241110.32
11/10/2024  09:13 AM               369 QVerify.log20241110.33
11/10/2024  09:07 AM             1,081 QVerify.log20241110.34
11/10/2024  11:48 PM             1,324 QVerify.log20241110.4
11/10/2024  07:21 PM             1,324 QVerify.log20241110.5
11/10/2024  07:21 PM             1,324 QVerify.log20241110.6
11/10/2024  07:21 PM             1,324 QVerify.log20241110.7
11/10/2024  07:21 PM             1,324 QVerify.log20241110.8
11/10/2024  12:00 PM             1,321 QVerify.log20241110.9
              64 File(s)         52,379 bytes
               2 Dir(s)  20,823,511,040 bytes free

1 reply

FreeAndNil Nov 11, 2024
Collaborator

@rosennej are you running your application in the debugger?
Can you reproduce the problem without Visual Studio?
Can you try

  <staticLogFileName value="false" />

?

rosennej · 2024-11-16T12:45:19Z

rosennej
Nov 16, 2024
Author

I am running in the debugger. It happens only after the debugger is aborted. I suggest this is a Visual Studio or Windows problem, not a log4net problem.

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log4net:WARN Cannot RollFile -> Source does not exist #208

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