PROBLEM:

While importing a dump, getting below error:

Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 – 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
ORA-39002: invalid operation
ORA-39174: Encryption password must be supplied.

SOLUTION:

The export dump is an encrypted one. I.e while taking export , ENCRYPTION_PASSWORD has been provided.
So for importing also,  we need to pass the same password. So get the password and import as below.