I recently deployed an application using SQL Anywhere v 12.0.1.3942 with the .Net Dataprovider and using Entity Framework 5.

Since deployment a few days ago I've noticed that I'm intermittently getting the following error - iAnywhere.Data.SQLAnywhere.SAException: Run time SQL error -- *** ERROR *** Assertion failed: 104909 (12.0.1.3942)[] Invalid request on pooled connection

Here is the complete stack trace - http://pastebin.com/rsbChVXN

So far I haven't been able to find any details on what the potential cause of this may be as I am wrapping my context's in using blocks.

Like I said earlier, its only happened a total of 3 times, but I'd prefer to get to the bottom of this before things potentially get out of hand. Thanks in advance.

This is a known issue. This can potentially happen if you have a newer version of the database server than the ADO.NET provider.

Specifically, CR #742355 is implemented on the database server (the server is a higher build than 12.0.1.3924 or 16.0.0.1588), but CR #741707 is not implemented on the ADO.NET provider (the ADO.NET provider is a lower version than 12.0.1.3924 or 16.0.0.1588).

Deploying the same version of the ADO.NET provider to match the database server version (e.g. 12.0.1.3942) to the client should resolve this issue.

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