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Unknown database connector error

Sep 15, 2017 at 04:38 PM


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We are trying to connect to oracle 12c from crystal reports rpt file at runtime and getting "Unknown database connector error" when we are trying to assign schema.tablename to location property of table object of crystal runtime engine. We are also getting the same error when trying to export the rpt file as html file to local disk.

This is happening only when we are trying to run it from visual studio 2013. In QA env it is working. Our Crystal Reports (dev version) is - 64 bit.

We are guessing that it is a runtime dll conflict but not sure. It suddenly and rarely works once in a while but fails 9 out of 10 times. Would appreciate help to sort this out. Thanks.

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1 Answer

Don Williams
Sep 15, 2017 at 04:39 PM

Check runtime versions and permissions.

Can even be Firewall and AV software blocking access

Make sure the Redist package on the app server is the same versions as you DEV PC is.

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