i got it works now.
It was missing modules during first installation.

Another experience, server should have more than 512Mb Ram, better 1G to avoid npm install issue.

thanks @pichalite
Here is the step i have followed to install NodeBB on CentOS 7

Dec 1, 2016  /  IT Discussion

Installing NodeBB with Mongo on CentOS 7

Starting from a standard install of CentOS 7 Minimal r1511. Update CentOS yum -y update Install EPEL and firewalld yum -y install epel-release firewalld Start the firewall and enable it to start at boot systemctl start firewalld systemctl enable firewal...

I use node v6.11.0,
mongodb v3.4

and NodeBB latest version, i clone the repo at here
git clone https://github.com/NodeBB/NodeBB

Hi everyone,

i am new to NodeBB, trying to install it on CentOS7. After starting, browse the page and i get following error. Please show me how to fix it.

Thanks a lot.

Error: Failed to lookup view "500" in views directory "/opt/services/node/nodebb/build/public/templates"
at EventEmitter.render (/opt/services/node/nodebb/node_modules/express/lib/application.js:580:17)
at ServerResponse.render (/opt/services/node/nodebb/node_modules/express/lib/response.js:971:7)
at content (/opt/services/node/nodebb/src/middleware/render.js:70:15)
at /opt/services/node/nodebb/node_modules/async/dist/async.js:3830:24
at replenish (/opt/services/node/nodebb/node_modules/async/dist/async.js:946:17)
at /opt/services/node/nodebb/node_modules/async/dist/async.js:950:9
at eachOfLimit (/opt/services/node/nodebb/node_modules/async/dist/async.js:975:24)
at /opt/services/node/nodebb/node_modules/async/dist/async.js:980:16
at eachOf (/opt/services/node/nodebb/node_modules/async/dist/async.js:1051:5)
at _parallel (/opt/services/node/nodebb/node_modules/async/dist/async.js:3829:5)
at Object.parallelLimit [as parallel] (/opt/services/node/nodebb/node_modules/async/dist/async.js:3912:5)
at async.waterfall.str (/opt/services/node/nodebb/src/middleware/render.js:65:12)
at nextTask (/opt/services/node/nodebb/node_modules/async/dist/async.js:5273:14)
at next (/opt/services/node/nodebb/node_modules/async/dist/async.js:5280:9)
at /opt/services/node/nodebb/node_modules/async/dist/async.js:906:16
at fireFilterHook (/opt/services/node/nodebb/src/plugins/hooks.js:112:11)

--