Error: Can't set headers after they are sent.

[fengmk2]

2013-04-30 10:54:57.008 nodejs.ErrorException: Error: Can't set headers after they are sent.
    at ServerResponse.OutgoingMessage.setHeader (http.js:673:11)
    at ServerResponse.res.setHeader (/home/admin/alimovie/target/alimovie/node_modules/connect/lib/patch.js:59:22)
    at send (/home/admin/alimovie/target/alimovie/node_modules/connect-render/lib/render.js:103:7)
    at /home/admin/alimovie/target/alimovie/node_modules/connect-render/lib/render.js:159:7
    at _render_tpl (/home/admin/alimovie/target/alimovie/node_modules/connect-render/lib/render.js:38:3)
    at /home/admin/alimovie/target/alimovie/node_modules/connect-render/lib/render.js:96:5
    at fs.readFile (fs.js:176:14)
    at Object.oncomplete (fs.js:297:15)
pid: 25453
domainThrown: false
Host: v065117.cm4
URL: 
Data: ""
2013-04-30 10:54:57.008