Travis Building Failed : Cannot download node-sass

[songzheng45]

Travis building log is blow:

> [email protected] install /home/travis/build/songzheng45/xingzheng.me/node_modules/node-sass
> node scripts/install.js
Downloading binary from https://github.com/sass/node-sass/releases/download/v4.8.2/linux-x64-64_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.8.2/linux-x64-64_binding.node": 
HTTP error 404 Not Found
Hint: If github.com is not accessible in your location
      try setting a proxy via HTTP_PROXY, e.g. 
      export HTTP_PROXY=http://example.com:1234
or configure npm proxy via
      npm config set proxy http://example.com:8080

......
npm ERR! Failed at the [email protected] postinstall script.

[songzheng45]

Steps to solve problem:

1. Install node version v8.11.1 instead of latest version (v10)
2. Install npm version v4 instead of latest
3. run npm rebuild node-saas before npm install

language: node_js
node_js: 
  - "8.11.1"

before_install: 
  - npm install -g npm@4

install:
  - npm rebuild node-sass
  - npm install

Step 1

After test, I found latest version of node (v10) can't solve this problem, so I downgrade to v8.11.1.

Step 2

One contributor of node-sass said we need to downgrad to npm@4
sass/node-sass#1991 (comment)

Step 3

We need to build the binding for current environment
sass/node-sass#1527 (comment)

How to downgrade npm version: expo/expo#297 (comment)