grunt shell出错

Running "shell:jekyll" (shell) task

[Error: The specified procedure could not be found.

d:\work\svn\html\node_modules\grunt-shell-spawn\node_modules\execSync\win32\v0.8

\shell.node]

Warning: execSync incompatible with installed nodejs Use --force to continue.

Aborted due to warnings.

不知是什么原因~