The debugging events [error](/api/fusioncharts/namespaces/debugger#event-error) and [warning](/api/fusioncharts/namespaces/debugger#event-warning) pass on the "nature" of the error/warning as its argument. The value of this argument is one from the following list - giving a summary of the category of the error/warning raised.

Name	Description
`TypeException`	Type mismatch of an input being processed. For example, `null` or `undefined` has been found in an operation where only `string` type of data is expected.
`ValueRangeException`	The error or warning event was caused due to a critical value involved during an operation is outside the acceptable range.
`ParameterException`	This exception is caused when a parameter passed on to a function is missing or is in an unacceptable format.
`RuntimeException`	When a specific combination of inputs caused a process to reach a computational error such as division by zero, mathematical operation on non-numeric values, etc - this nature of warning or error is raised.
`DesignTimeException`	Specific implementations of FusionCharts library may cause issues on specific browsers. Such issues (wherever detected) is notified as `DesignTimeException`. An example for the same would be having a chart's variable name exposed globally and also be similar to the chart's Id - this causes issue on older versions of Internet Explorer browser.
`NotImplementedException`	You've hit a jackpot! The operation that caused this error or wanning is planned, but not yet implemented. Welcome to the future!
`UnspecifiedException`	Exceptions that were trapped but specific cause of the same is not ascertained.

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