TypeError: Cannot read property 'text' of undefined

[alexgorbatchev]

I'm getting an error

[10:28:53] Requiring external module ts-node/register

    project/node_modules/ts-node/dist/ts-node.js:68
            var result = output.outputFiles[1].text;
                                              ^
    TypeError: Cannot read property 'text' of undefined
        at getOutput (project/node_modules/ts-node/dist/ts-node.js:68:43)
        at compile (project/node_modules/ts-node/dist/ts-node.js:91:16)
        at Object.loader (project/node_modules/ts-node/dist/ts-node.js:94:27)
        at Module.load (module.js:355:32)
        at Function.Module._load (module.js:310:12)
        at Module.require (module.js:365:17)
        at require (module.js:384:17)
        at Liftoff.handleArguments (project/node_modules/gulp/bin/gulp.js:116:3)
        at Liftoff.<anonymous> (project/node_modules/gulp/node_modules/liftoff/index.js:192:16)
        at module.exports (project/node_modules/gulp/node_modules/liftoff/node_modules/flagged-respawn/index.js:17:3)

I've made a snapshot of the project here alexgorbatchev/gulp-typescript-webpack-react-hotreload@d6fc57f . Try running gulp dev.

[blakeembrey]

Hmm, weird. I just checked out the same commit and get:

➜  gulp-typescript-webpack-react-hotreload git:(master) ✗ gulp dev
[10:59:07] Requiring external module ts-node/register
----------------------------------
⨯ Unable to compile TypeScript

gulpfile.ts (3,23): Cannot find module 'path'. (2307)
gulpfile.ts (5,14): Cannot find name 'require'. (2304)
gulpfile.ts (6,13): Cannot find name 'require'. (2304)
gulpfile.ts (7,23): Cannot find name 'require'. (2304)
gulpfile.ts (10,12): Cannot find name 'require'. (2304)
gulpfile.ts (11,14): Cannot find name 'require'. (2304)
gulpfile.ts (12,15): Cannot find name 'require'. (2304)
gulpfile.ts (13,11): Cannot find name 'require'. (2304)
gulpfile.ts (14,11): Cannot find name 'require'. (2304)
gulpfile.ts (15,12): Cannot find name 'require'. (2304)
gulpfile.ts (16,10): Cannot find name 'require'. (2304)
gulpfile.ts (17,10): Cannot find name 'require'. (2304)
gulpfile.ts (18,15): Cannot find name 'require'. (2304)
gulpfile.ts (22,85): Cannot find name 'require'. (2304)
gulpfile.ts (24,33): Cannot find name 'require'. (2304)
gulpfile.ts (64,19): Cannot find name 'require'. (2304)
gulpfile.ts (66,11): Cannot find name 'require'. (2304)
gulpfile.ts (69,14): Cannot find name 'process'. (2304)
gulpfile.ts (1,1): File '/Users/blakeembrey/Projects/tmp/gulp-typescript-webpack-react-hotreload/typings/tsd.d.ts' not found. (6053)
----------------------------------

What version of ts-node is installed?

[blakeembrey]

Actually, I didn't install the typings. I have the same issue now, I'll have it fixed right away 😄

[alexgorbatchev]

I've been trying to diagnose this, and I got I have a feeling that this error might be caused by issues in .tsx files.

Here's a minimum breaking/working case:

1. delete src/client/index.tsx
2. change src/client/app.tsx to

import * as React from 'react';

interface HelloWorldProps extends React.Props<any> {
  name: string;
  kind: string;
}

export default class App extends React.Component<HelloWorldProps, any> {
}

module.exports = App;

The above will still cause the error... Deleting kind: string; line will make the error go away... Which makes me believe it has something to do with not properly handling TypeScript compilation errors... maybe?

[blakeembrey]

There's a declaration issue that I'm not collecting from TypeScript program (it's not in the language services layer). I'm refactoring it to handle it now and properly output the error.

[alexgorbatchev]

[blakeembrey]

@alexgorbatchev I released a patch with 0.3.0, though I'll have to do a further check later (I'm busy this weekend) to make sure the compilation speed isn't being impacted.

[alexgorbatchev]

Fantastic, thank you!