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Error: ngCompiler.ReflectorHost is not a constructor #3241

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Description

Please provide us with the following information:

OS?

Mac OSX (Sierra)

Versions.

ngtools/webpack - 1.1.7

Repro steps.

git clone github.com/prsolucoes/angular2-starter-project
cd angular2-starter-project
npm install
npm start

The log given by the failure.

paulo@MacBook-Pro-de-Paulo:~/Developer/workspaces/node/angular2-starter-project (master) $ npm start

> angular2-starter-project@1.0.0 start /Users/paulo/Developer/workspaces/node/angular2-starter-project
> npm run ngc && concurrently -r "webpack-dev-server --config webpack.config.js" "node ./bin/ngc-watch.js"


> angular2-starter-project@1.0.0 ngc /Users/paulo/Developer/workspaces/node/angular2-starter-project
> ngc -p ./tsconfig.json

/Users/paulo/Developer/workspaces/node/angular2-starter-project/node_modules/@ngtools/webpack/src/plugin.js:127
        this._reflectorHost = new ngCompiler.ReflectorHost(this._program, this._compilerHost, this._angularCompilerOptions);
                              ^

TypeError: ngCompiler.ReflectorHost is not a constructor
    at AotPlugin._setupOptions (/Users/paulo/Developer/workspaces/node/angular2-starter-project/node_modules/@ngtools/webpack/src/plugin.js:127:31)
    at new AotPlugin (/Users/paulo/Developer/workspaces/node/angular2-starter-project/node_modules/@ngtools/webpack/src/plugin.js:35:14)
    at Object.<anonymous> (/Users/paulo/Developer/workspaces/node/angular2-starter-project/webpack/plugins.js:12:2)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    at tryModuleLoad (module.js:432:12)
    at Function.Module._load (module.js:424:3)
    at Module.require (module.js:483:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/paulo/Developer/workspaces/node/angular2-starter-project/webpack.config.js:15:11)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    at tryModuleLoad (module.js:432:12)
    at Function.Module._load (module.js:424:3)

Mention any other details that might be useful.

My repository with the current problem:
https://github.com/prsolucoes/angular2-starter-project

My plugin initialization:

let ngtools = require('@ngtools/webpack');
module.exports = [
	new ngtools.AotPlugin({
		tsConfigPath: './tsconfig.json',
		baseDir: path.join(process.cwd(), 'src'),
		entryModule: path.join(process.cwd(), 'src', 'app', 'modules', 'app.module') + '#AppModule'
	}),
....

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