Attempt to call field 'hasFastHalfInstructions' (a nil value)

[yuchenlin]

Every step works fine but the final step has a problem like this

bill@Darkstar:~/fbgo/darkforestGo/cnnPlayerV2$ th cnnPlayerMCTSV2.lua
/home/kangqi/workspace/distro/install/bin/luajit: ...qi/workspace/distro/install/share/lua/5.1/trepl/init.lua:384: ...qi/workspace/distro/install/share/lua/5.1/cudnn/init.lua:98: attempt to call field 'hasFastHalfInstructions' (a nil value)
stack traceback:
    [C]: in function 'error'
    ...qi/workspace/distro/install/share/lua/5.1/trepl/init.lua:384: in function 'require'
    ../utils/utils.lua:523: in function 'require_cutorch'
    cnnPlayerMCTSV2.lua:15: in main chunk
    [C]: in function 'dofile'
    ...ace/distro/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
    [C]: at 0x00405ea0

[yuchenlin]

Solution: Just install or update cutorch.