CMake variable EXTENSION_WC_REVISION is empty !

[whucsu]

Slicer 4.11 compiled successfully.
And the IGSIO compiled successfully.
But as to the SlicerIGSIO compiling, only one error :
CMake Error at C:/Slicer/SlicerSource/Extensions/CMake/SlicerFunctionGenerateExtensionDescription.cmake:70 (message):
8> CMake variable EXTENSION_WC_REVISION is empty !
thanks for any help or suggestion.

[Sunderlandkyl]

Is the SlicerIGSIO code not under version control?

If it isn't, then you can define the variables manually in CMake. See post here:
https://discourse.slicer.org/t/3d-slicer-release-build-error-variable-slicer-wc-last-changed-date-is-expected-to-be-defined-in-slicerpackageanduploadtarget/20984/23?u=sunderlandkyl

[whucsu]

thanks, I searched that issue. I will do as that suggetstion.

[whucsu]

Is the SlicerIGSIO code not under version control?

If it isn't, then you can define the variables manually in CMake. See post here: https://discourse.slicer.org/t/3d-slicer-release-build-error-variable-slicer-wc-last-changed-date-is-expected-to-be-defined-in-slicerpackageanduploadtarget/20984/23?u=sunderlandkyl

dose it mean that I need to re-compile the Slicer and add that TWO cmake variables ?