spm版本：3.6.12
node版本：0.12.8
系统环境：max

无论运行什么命名，都报以下错误！

var r = binding.read(fd, buffer, offset, length, position);
^
Error: EISDIR, illegal operation on a directory
at Error (native)
at Object.fs.readSync (fs.js:552:19)
at Object.fs.readFileSync (fs.js:384:28)
at parse (/usr/local/lib/node_modules/spm/node_modules/spmrc/index.js:123:15)
at Object.exports.get (/usr/local/lib/node_modules/spm/node_modules/spmrc/index.js:51:26)
at Object. (/usr/local/lib/node_modules/spm/lib/utils/run.js:4:26)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)