问题
Using Xcode 10, when I stop my app using a breakpoint and try to print the content of an object in the Console, I obtain:
"Couldn't IRGen expression, no additional error"
However, I can see the value of the object in the Variables View panel.
How can I make it evaluate my expression instead?
回答1:
Thanks. I solved with rebuild carthage framework like imtx.me/archives/2719.html
carthage update --platform iOS --no-use-binaries
回答2:
In lldb as a workaround you can use:
fr v productVersion
fr v productBuild
which prints local variable type and address from current call stack frame.
Apple documentation for these kind of lldb capabilities: https://developer.apple.com/library/archive/documentation/General/Conceptual/lldb-guide/chapters/C5-Examining-The-Call-Stack.html
回答3:
I had defined as build system: "Legacy Build System", I changed it to "New Build System", then I build the project, and then I put it back as "Legacy Build System" and it worked again.
For to change the build mode: File->Workspace settings...->Build System
来源：https://stackoverflow.com/questions/52716637/xcode-10-lldb-couldnt-irgen-expression