I cannot compile the latest devel v0.20 successfully, never happened before. I use vc2013 in window7.
Here is the output of command koch boot -d:release:
D:\Tool\Nim>koch boot -d:release
iteration: 1
compiler\nim0.exe c -d:release --nimcache:nimcache/r_windows_i386 compiler\nim.nim
..\lib\system.nim(376, 50) Warning: unknown magic 'Destroy' might crash the compiler [UnknownMagic]
sigmatch.nim(330, 8) Warning: mdbg is deprecated [Deprecated]
Hint: operation successful (122295 lines compiled; 8.350 sec total; 282.906MiB peakmem; Release Build) [SuccessX]
iteration: 2
compiler\nim1.exe c -d:release --nimcache:nimcache/r_windows_i386 compiler\nim.nim
nim.nim(1, 2) Error: cannot open file: ""
FAILURE
nim.exe is generated in the first iteration, but it cannot compile any file. It is always say "nim.nim(1, 2) Error: cannot open file: """.
Help needed.