The Existing Data Directory Is Not Compatible With This Server

IT Support Forum Forums Databases PostgreSQL Installation The Existing Data Directory Is Not Compatible With This Server

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      When installing Postgres, specifically after selecting the Data Directory, you may get this error:

      Error

      The existing data directory (catalog version: 201909212) is not compatible with
      this server (catalog version: 201510051).

      This is because you specified a data directory that already contains a database, and the database is of a newer version than is supported by the version of Postgres that you are trying to install.

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