ionic cordova build - node_contextify.cc:635 Assertion `args[1]->IsString()' failed

[dave-k]

Description:
ionic v1 app does not build
There is an issue with node and the 'internal contextify script' : Assertion `args[1]->IsString()' failed

Steps to Reproduce:

$ ionic cordova build ios

Output:

> ionic-v1 build
ionic-v1[53011]: ../src/node_contextify.cc:635:static void node::contextify::ContextifyScript::New(const FunctionCallbackInfo<v8::Value> &): Assertion `args[1]->IsString()' failed.

My ionic info:

<paste here>

Other Information:
macOS High Sierra v10.13.5

$ npm -v
6.2.0
$ node -v
v10.7.0
$ ionic -v
CLI 4.0.2
$ cordova -v
8.0.0

[imhoffd]

@dave-k Have you tried reinstalling dependencies?

[dave-k]

I reinstalled node_modules, but the error is still there.

rm -rf node_modules 
npm install 

[imhoffd]

Okay, I installed Node 10.7.0 and I also get the error. However, when I do this, the issue is resolved: nodejs/node#20285 (comment)

Please try:

rm -rf node_modules
rm package-lock.json
npm cache clean --force
npm install 

[dave-k]

The issue is resolved, but now I get this error - not sure if it is related or a new issue.
Error: Command failed: xcrun simctl list --json

$ ionic cordova build ios
> ionic-v1 build
[12:49:26] Cannot run sass task: missing in gulpfile.js
> cordova build ios
Running command: /Users/dev/mobileapp/hooks/after_prepare/010_add_platform_class.js /Users/dev/mobileapp
add to body class: platform-ios
(node:62271) UnhandledPromiseRejectionWarning: Error: Command failed: xcrun simctl list --json
dyld: Symbol not found: _SimDeviceBootKeyDisabledJobs
  Referenced from: /Applications/Xcode.app/Contents/Developer/usr/bin/simctl
  Expected in: /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
  in /Applications/Xcode.app/Contents/Developer/usr/bin/simctl

at ChildProcess.exithandler (child_process.js:291:12)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:961:16)
    at Socket.stream.socket.on (internal/child_process.js:380:11)
    at Socket.emit (events.js:182:13)
    at Pipe._handle.close (net.js:599:12)

[imhoffd]

That looks like an issue with Xcode. Make sure it's up to date, and make sure you open it.

[umadesign]

npm install natives solved this on my setup:

Ionic:

ionic (Ionic CLI) : 4.12.0 (/usr/local/lib/node_modules/ionic)
Ionic Framework : ionic1 1.2.4
@ionic/v1-toolkit : 1.0.22

System:

NodeJS : v11.6.0 (/usr/local/Cellar/node/11.6.0/bin/node)
npm : 6.9.0
OS : macOS High Sierra

[imhoffd]

I would not recommend installing that.

The best course of action is to switch to a supported LTS version of Node. If problem persists, try the steps in this comment: #3462 (comment)