SLF4j Migrating Issue

[gopinathboosam]

Dear Member,
I have SLF4J Migrator Version 1.7.5. My code is logged in by using LOG4J. After I migrated my whole code using the migrator, the code is getting converted partially. The formatting tags "{}" are not getting replaced. So that, I have to change the entire code manually. Hence, I would like to know,

1. Is there any chance that I have missed while migrating?
2. Why the entire code not replaced with SLF4J?

Thanks in advance.
Gopinath