Hi Sujith,The path and name of the Block and Pictorial symbols must be exactly the same, and in the same case. So if, in your My Libraries list you have:
Blocks | ACME Electronics | RR-9000
you must also have:
Pictorials | ACME Electronics | RR-9000
Notes: you must have the roots "Blocks", "Racks", "Pictorials", "Panels", and the Convert to function is case-sensitive so in the example above "Pictorials | Acme Electronics | RR-9000" would not work. The word in red is the wrong case.