Hi,

Sometimes the nodeSetup task is failing with the error
'Couldn't follow symbolic link.' on osx.

Cleaning the .gradle directory fixes the issue.

../gradlew build
:typescript-script-sample:nodeSetup FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Could not list contents of '/Users/rabbit/xxx/xxx/typescript-script-sample/.gradle/nodejs/node-v6.9.4-darwin-x64/bin/npm'. Couldn't follow symbolic link.

$> ll /Users/rabbit/xxx/xxx/typescript-script-sample/.gradle/nodejs/node-v6.9.4-darwin-x64/bin/npm
/Users/rabbit/xxx/xxx/typescript-script-sample/.gradle/nodejs/node-v6.9.4-darwin-x64/bin/npm -> /Users/rabbit/xxx/xxx/gradle-typescript-script-sample/.gradle/nodejs/node-v6.9.4-darwin-x64/lib/node_modules/npm/bin/npm-cli.js