# [DFWD_FW_COMPILER_EXEC](https://apps.juniper.net/syslog-explorer/?msg=DFWD_FW_COMPILER_EXEC)

## SYSLOG Details
- **Message**: exec of firewall compiler () failed: <variable>error-message</variable>
- **Help**: DFWD could not exec the firewall compiler
- **Description**: DFWD found an error when using the exec() system call to start the firewall compiler.
- **Type**: SNO: Should Not Occur
- **Severity**: error
- **Cause**: An internal software failure occurred.
- **Action**: Contact your technical support representative.
- **Attributes**: error-message
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=DFWD_FW_COMPILER_EXEC&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=DFWD_FW_COMPILER_EXEC&sw=Junos%20OS&rel=23.4R1)