Can't locate object method "duplicate" via package "Slic3r::Print"

[CapnBry]

Using slic3r-console.exe 0.9.10b on Win 7 x64 to slice an stl file gives me an error:

C:\SysTools\Slic3r>slic3r-console.exe C:\Users\muser\Documents\OptoZ.stl
Can't locate object method "duplicate" via package "Slic3r::Print" at C:/SysTools/Slic3r/lib/std/cavaexecscript/slic3r-console.pl line 84.

Using Slic3r 0.9.9-dev (included with printrun) works fine, as does slicing with the 0.9.10b gui. I've also tried deleting the configuration directory %APPDATA%/Slic3r and get the same error.

[alranel]

Can you confirm using slic3r.exe instead of slic3r-console.exe works? (It will just be silent, with no terminal output, but it will still slice the file)

[CapnBry]

Yes using just slic3r.exe works great. Oddly enough, I'm invoking it from a Ruby script and even using slic3r.exe I get progress report information from the pipe. Ruby code for those interested

IO.popen "C:\\SysTools\\Slic3r\\slicer.bat #{stl_name} 2>&1" do |io|
    io.each { |l| print l }
end

And the batch file it calls, again really simple

c:\SysTools\Slic3r\slic3r.exe --load "C:\Users\bmayland\AppData\Roaming\Slic3r\print\slicer.ini" --load "C:\Users\bmayland\AppData\Roaming\Slic3r\filament\slicer.ini" --load  "C:\Users\bmayland\AppData\Roaming\Slic3r\printer\slicer.ini" "%1"

[alranel]

Okay, then it was a failure in the build process. Thank you.