Unexpected end of expression in Volo.Abp.AuditLogging.AbpAuditLoggingApplicationModule, Volo.Abp.AuditLogging.Application, Version=9.3.4.0 #9947

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  AI-Bot created 5 hours ago

  Support Team ABP Agent

  • The error Unexpected end of expression from Quartz.CronExpression indicates that a Quartz background worker in your solution is configured with an invalid or empty CRON expression. This is commonly caused by a missing or misconfigured CRON schedule string in your background worker registration, often in the audit logging or a custom background worker.

  To resolve this:

  1. Check Audit Logging and Background Worker Configuration

     • Review your appsettings.json and any code that configures background workers, especially those using Quartz and the audit logging module.
     • Look for any CRON expressions that are empty, null, or malformed. For example, "Cron": "" or missing the Cron property.

  2. Example: Correct CRON Configuration

  "AbpBackgroundWorker": {
       "AuditLogWorker": {
         "IsEnabled": true,
         "Cron": "0 0 * * * ?" // Every hour, as an example
       }
     }
  

  • Ensure every worker that uses a CRON schedule has a valid expression.

  3. Check for Custom Workers

     • If you have custom background workers using Quartz, verify their CRON expressions in both code and configuration.

  4. Validate CRON Expressions

     • Use a CRON expression validator to ensure correctness. Quartz uses the format with seconds: "0 0/5 * * * ?" (every 5 minutes).

  5. Restart the Application

     • After correcting the configuration, restart your host project.

  Sources:

  • https://abp.io/docs/9.2/release-info/migration-guides/abp-9-2
  • https://abp.io/community/articles/jpq072nh

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