Process Exit Code1

Good Morning All,

I have a nightly job that runs from the management studio. But the job has been failing for the past few days with the following error:

Executed as user: AD\MOSS_IyBI. C:\WINDOWS\system32>F:    F:\>cd\tools2\SSIS\MonthlyProcess\MonthlyProcess    F:\Tools2\SSIS\MonthlyProcess\MonthlyProcess>dtexec /f "Package.dtsx" /Rep "EW"  1>>F:\Tools2\Log\MonthlyProcess.log.  Process Exit Code 1.  The step failed.

The actual process is the SQL SERVER uses the "CmdExec" command to invoke a .bat file and the .bat file is

F:
cd\tools2\SSIS\MonthlyProcess\MonthlyProcess
dtexec /f "Package.dtsx" /Rep "EW" >> F:\Tools2\Log\MonthlyProcess.log

cany anyone please tell me the reason why the job is failing. Your help is greatly appreciated.

Thanks

SV