TypeScript build fails (tsc build of this project itself)

[Bnaya]

This a build of a plain fork on the same commit as this repo
https://travis-ci.org/brandtotal/TypeScript/jobs/209286829

The build fails on:

node built/local/tsc.js --noImplicitAny --noImplicitThis --noEmitOnError --types  --pretty --preserveConstEnums --outDir built/local/ --module commonjs -sourcemap -mapRoot file:////home/travis/build/brandtotal/TypeScript/built/local --target es5 --lib es5,scripthost --noUnusedLocals --noUnusedParameters src/server/cancellationToken/cancellationToken.ts
1841     export class URLSearchParams implements Iterable<string[]> {
                                                 ~~~~~~~~
node_modules/@types/node/index.d.ts(1841,45): error TS2304: Cannot find name 'Iterable'.

The --lib es5,scripthost is missing es6 to have the iterator interface.

I don't know how your travis build is passing, i would assume its something on the cached dependencies.
try to clear your cache and run the build again

[sslgeorge]

I am having the same exact issue now

[kitsonk]

I have run into something similar. It appears that @types/node of the 7.0.X versions assumes an ES6 environment. I have noticed that if your force a @types/node@^6.0.0 in a package.json you can eliminate the dependency on the build in ES6 features that are part of the 7.0.X release.

I assume recently the 7.0.X versions became the default, which means if there is a cache with an older version of @types/node it using the non ES6 specific typings and therefore builds continue to succeed without the --lib es6 instead of --lib es5.

[mhegazy]

As @kitsonk noted, this is caused by recent change to @types/node. Should be fixed by #14553