Nativescript: Upgrading zone.js to latest ^0.6.18 doesn't let app build

[roblav96]

tldr;

Revert back to 0.6.17 zone.js

---

I get this error when trying to build my app:

Sep 10 12:27:29 Robs-MBP client[10264]: 3   0x10b85392d start
Sep 10 12:27:29 Robs-MBP client[10264]: **file:///app/tns_modules/zone.js/dist/zone-node.js:670:21: JS ERROR Error: Could not find module 'timers'**. Computed path '/Users/roblav96/Library/Developer/CoreSimulator/Devices/F0820311-799D-4113-AE34-3C3AAD669E9F/data/Containers/Bundle/Application/B5D1EF38-393A-4AA2-B204-C03023FC42D6/client.app/app/tns_modules/timers'.
Sep 10 12:27:29 Robs-MBP com.apple.CoreSimulator.SimDevice.F0820311-799D-4113-AE34-3C3AAD669E9F.launchd_sim[2436] (UIKitApplication:com.roblav96.sandbox[0x4bbd][10264]): Service exited due to signal: Segmentation fault: 11

Checking npm info zone.js:

     '0.6.16': '2016-08-22T17:29:49.463Z',
     '0.6.17': '2016-08-22T22:41:52.196Z',
     '0.6.18': '2016-09-10T16:04:53.468Z',
     '0.6.19': '2016-09-10T16:06:17.234Z' },

I revert back to 0.6.17 and everything works fine again.

[warren-bank]

ditto.. I'm not sure whether the zone.js team would necessarily care about code changes that would break compatibility with NativeScript, but I added an issue in their repo that describes the problem and its origin.

In the meanwhile, we're stuck with either:

• reverting our version of zone.js (as suggested here) to a known/working copy
• write a (temporary?) workaround that exposes a module "timers", which simply wraps the existing module "timer"

[ross-bradbury]

This looks related to nativescript-angular issue #144

[warren-bank]

tldr;

• quick example that summarizes the process to revert the version of zone.js in a NativeScript project
• tested (this time)

tns create ExampleProject --ng
cd ExampleProject

# revert version of "zone.js" in "nativescript-angular":
cd node_modules/nativescript-angular
npm uninstall zone.js --save
npm install [email protected] --save

# revert version of "zone.js" in "ExampleProject":
# (note: its "package.json" doesn't list this module, so it must be listed under "peerDependencies" in one of the listed "dependencies".. didn't bother to track it down)
cd ../..
npm uninstall zone.js
npm install [email protected]

# remove "tns_modules" (if they already exist):
rm -rf platforms

# add "android" as a target plaform (if it isn't already):
tns platform add android

# rebuild and do a test run:
tns run android

[warren-bank]

update: I was curious.. and learned something new..

the module: @angular/core is a "scoped package"

it's "package.json" includes "zone.js" in its "peerDependencies".

when npm installs @angular/core, the peer is added adjacent to the parent "scope" (ie: as a peer to @angular), which is the 2nd instance of "zone.js" reverted in the above example.

[tsonevn]

related to issue #444 .
Please comment in issue #444 .

[lock[bot]]

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