Resolved crontabmng failed: Line (1): System.FormatException: Input string was not in a correct format.

[Paul Hermans]

Anybody having problems with Scheduled Tasks?

After running a Plesk update via Powershell: plesk installer --select-release-latest --upgrade-installed-components

We get these errors on a clean Windows Server 2019 server:

...
ERROR: Upgrade step Plesk\Upgrade\Action_UpgradeExtensions failed with error:
The execution of post-install.php has failed with the following message:

The execution of post-install.php has failed with the following message:
ERROR: PleskUtilException: crontabmng failed: Line (1):         System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at psa.scheduler.device.Parser.GetNumber(Int64 low, String[] names)
   at psa.scheduler.device.Parser.GetRange(Int64 low, Int64 high, String[] names)
   at psa.scheduler.device.Parser.Parse_6_5_FileLine()
   at psa.scheduler.device.PSAScheduler.Load_6_5_File(StreamReader sr)

...

(Error code 1) (Agent.php:196) (DeferredCommand.php:32)
Launching component and product checkers...
Downloading file pool/release/PLESK-WIN_18.0.32_4963/reportupdate.exe: 0%
Downloading file pool/release/PLESK-WIN_18.0.32_4963/reportupdate.exe: 100% was finished.

The changes were applied successfully.

PS C:\Users\Administrator>

We got similar errors on another server from the "Backup task notification"

<?xml version="1.0"?>
<execution-result local-dump-created="true" export-dump-created="false" status="warnings">
  <object type="Server" name="server.hostname.tld">
    <message severity="warning">
      <description>Unable to back up scheduled tasks. Error: crontabmng failed: Line (1):     System.FormatException: Input string was not in a correct format.&#xD;
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer&amp; number, NumberFormatInfo info, Boolean parseDecimal)&#xD;
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)&#xD;
   at psa.scheduler.device.Parser.GetNumber(Int64 low, String[] names)&#xD;
   at psa.scheduler.device.Parser.GetRange(Int64 low, Int64 high, String[] names)&#xD;
   at psa.scheduler.device.Parser.Parse_6_5_FileLine()&#xD;
   at psa.scheduler.device.PSAScheduler.Load_6_5_File(StreamReader sr)&#xD;

(Error code 1)</description>
    </message>
  </object>
</execution-result>

The same error appears via Plesk > Scheduled Tasks when editing (or simply click Apply) a task from: "server (user: Plesk Panel)"
This counts for all tasks of this user.

 

[Paul Hermans]

This error still exists, running crontabmng from the command line returns the same error:

PS C:\Program Files (x86)\Plesk\admin\bin> .\crontabmng.exe update
Line (1):       System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at psa.scheduler.device.Parser.GetNumber(Int64 low, String[] names)
   at psa.scheduler.device.Parser.GetRange(Int64 low, Int64 high, String[] names)
   at psa.scheduler.device.Parser.Parse_6_5_FileLine()
   at psa.scheduler.device.PSAScheduler.Load_6_5_File(StreamReader sr)

PS C:\Program Files (x86)\Plesk\admin\bin> plesk ext wp-toolkit --list
crontabmng failed: Line (1):    System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at psa.scheduler.device.Parser.GetNumber(Int64 low, String[] names)
   at psa.scheduler.device.Parser.GetRange(Int64 low, Int64 high, String[] names)
   at psa.scheduler.device.Parser.Parse_6_5_FileLine()
   at psa.scheduler.device.PSAScheduler.Load_6_5_File(StreamReader sr)

(Error code 1)

exit status 1

I checked all the Scheduled tasks in de Plesk db and compared with other Plesk servers and they seem alright.

 

[IgorG]

This error still exists, running crontabmng from the command line returns the same error:

Do you have another Plesk server with the same version that works correctly? Try to compare files C:\Program Files (x86)\Plesk\Schedules\psaadm
The issue is caused usually by the corrupted mentioned file.
I suggest you contact Plesk Support Team to fix it if you haven't another server to replace this corrupted file.

 

[Paul Hermans]

@IgorG thank you very much, this was the solution!!