## Class: SB-THREAD:THREAD-ERROR [![package](https://img.shields.io/badge/Package-SB--THREAD-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Class-5f9ea0.svg?style=social&colorA=999999)](../#class) > Conditions of type THREAD-ERROR are signalled when thread operations fail. > The offending thread is initialized by the :THREAD initialization argument and > read by the function THREAD-ERROR-THREAD. ### Precedence list ```cl (sb-thread:thread-error error serious-condition condition sb-pcl::slot-object t) ``` ### Initargs ```cl (:thread) ```