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Jeff WaalkesJeff Waalkes 

How to clear an existing trigger error

I am working on building an apex code that checks incoming emails that have a null or blank value in the subject line and will set a placeholder value in the subject line that will be the new case subject line. 
What am I missing in this field and what is the potential duplicate trigger that is being used. 
Thanks User-added image
Abdul KhatriAbdul Khatri
Hi Jeff,

Please check if you either have a trigger, class etc. with the same name.

PriyaPriya (Salesforce Developers) 

Hey Jeff,

Kindly change the name of Trigger and then proceed.

Thank You,

Priya Ranjan