Fail to find file octypes.h when running 'npm install'

[xiaoyu3x]

According to in-more-details , I run to 8 step and execute 'npm install' in the iotivity-node folder. A issue happens:

[xiaoyu3x]

hi,
This issue is reproduced on fedora by the same manual way.

Furthermore, I use automatic method to install npm, but error happens.
Step:

1. git clone https://github.com/otcshare/iotivity-node
2. cd iotivity-node & npm install
3. node js/high-level-server.coaps.js
4. node js/high-level-client.coaps.js

Error outputs on client:

[xiaoyu3x]

This issue is reproduced with commit 35461e8