not able to backup pg admin 4 (RM #1965)

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Issue migrated from Redmine: https://redmine.postgresql.org/issues/1965
Originally created by netgains technologies at 2016-11-16 12:17:19 UTC.

Error says that 'database' does not exist.

Backing up an object on the server 'PostgreSQL 9.6 (localhost:5432)' from database 'testdb'...
Running command:
D:\Program Files\PostgreSQL\9.6\bin\pg_dump.exe --file "D:/backup16112016/smtp" --host "localhost" --port "5432" --username "postgres" --no-password --verbose --role "postgres" --format=c --blobs ""testdb""

pg_dump: [archiver (db)] connection to database ""testdb"" failed: FATAL: database ""testdb"" does not exist