I try to make an ICC camera profile for my a7r using Argyll. Scanin does not recognize the reference file, I keep getting the error
"scanin: Error - Scanin failed with code 0x10000004, read_elists: error opening match reference file 'ColorChecker.cht' "
I have tried with the Passport both in full size and reduced to 25 % (this helped in an earlier case, where Graeme told me that the noise from the image broke the pattern). I also tried to just use the part of the image that corresponds to the CC24 and rotate it (like in the error report quoted), but no avail. I have tried to contact both Graeme and the Argyll list, but no response this time. I'm stuck... :-(
if you can share the raw file that might be helpful (somebody can try on their system and may be provide a hint)... otherwise you can use rawdigger / makeinputicc argyll frontend workflow... that shall bypass your issue at all.