This message is generated when the error estimates computed by "DoubleExponentialOscillatory" do not fit the model of the error behavior. The message is given together with NIntegrate::deoncon.
Off[message] switches off the message; On[message] switches it on. For example: Off[NIntegrate::deorel].
Examples
Basic Examples(1)
This shows an attempt to computer a divergent integral with "DoubleExponentialOscillatory":