Hi Harpreet,
This might happen because the XML was generated in CTP with an incorrect shelf type . This needs to be changed in CTP, then pull out the new XML from it and try.
Once you have checked that the platforms are the same, you could
1. Generate the xml from CTP file.
2. Replace all NCS names with 15454 because the NE release is10.6.
Only naming convention has been changed. Platform is still NCS2K.
Also, looking at the error:
Mismatch of shelf type (old=15454 M6 ANSI,new=NCS 2006 ETSI)
The chassis is configured as ANSI and the XML has ETSI configuration, these two have to match as well.
Best regards,
Sari