Peter Steinberger • 6/4/2020

How to Fix LLDB: Couldn't IRGen Expression

This article details the investigation and workaround for a specific LLDB debugger error ('Couldn't IRGen expression') encountered after integrating PSPDFKit. It analyzes the conditions under which the error occurs (e.g., Swift-only projects vs. mixed-language), discusses the complexities of reproducible testing, and provides a known workaround involving adding an Objective-C class and bridging header. The issue was also reported to Apple (FB7718242).

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#debugging #Swift #Xcframework