NDSolve::ndnl NDSolveValue::ndnl ParametricNDSolve::ndnl ParametricNDSolveValue::ndnl

Details

This message is generated when the endpoints specified for the range of integration are not real numbers.
Off[message] switches off the message; On[message] switches it on. For example: Off[NDSolve::ndnl].

An error occurs because the limits on the independent variable do not have values:

This shows a correct specification of the limits on the variable:

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