[#btck-KernelNotifications-FatalErrorHandler]
= xref:btck.adoc[btck]::xref:btck/KernelNotifications.adoc[KernelNotifications]::FatalErrorHandler
:relfileprefix: ../../
:mrdocs:

Called on a fatal, unrecoverable error.

== Synopsis

Declared in `<kernel/bitcoinkernel_wrapper.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
FatalErrorHandler(std::string_view error);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *error*
| A human‐readable error message.
|===


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