Toad World® Forums

TOAD error - cannot use application


When I try to connect to Oracle database I encountered the following error:

The given key was not present in the dictionary.
Stack Trace:
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Quest.Toad.Db.ConnectionProxy.Implementation.ConnectionImplementation.GetObject(Int32 objectId)
at Quest.Toad.Db.ConnectionProxy.ProxyConnection.GetImplementation()
at Quest.Toad.Db.ConnectionProxy.ProxyConnection.GetActualState()

The application cannot show database tables and then asks me to close it.

windows 7 64 Bit, TDP Pro edition.

I would appreciate some help.


This error is unique to .net 4.6 and Oracle 64-bit client. We have fixed this in TDP 3.8.1 and TDP 4.0.

TDP 4.0 was released today so please down load and try.

Thank you Debbie.

version 3.81.677 solved the problem.