Any way to silence ng-metadata "Cannot find source file" warnings?

[jalbr74]

Everything is working great, but I keep getting warnings like the following when I run a build:

WARNING in ./~/ng-metadata/platform-browser-dynamic.js
Cannot find source file 'platform-browser-dynamic.ts': Error: Cannot resolve 'file' or 'directory' ./platform-browser-dynamic.ts in .\Angular1-scaffold\node_modules\ng-metadata
(... plus many more)

Is there anything I can do to silence only these messages?

I'm running this build on Windows 7.

Thanks!

[aciccarello]

Can you share a bit about your tsconfig.json config and how you are importing ng-metadata?

[jalbr74]

Well, I haven't made any changes to the Angular1-scaffold project, so the tsconfig.json isn't any different than what's found at: https://github.com/ngParty/Angular1-scaffold/blob/master/tsconfig.json.

The steps to reproduce for me are very straight forward:

$ git clone https://github.com/ngParty/Angular1-scaffold.git
$ cd Angular1-scaffold
$ npm run build

...everything builds fine, but I get 64 warnings.

My environment is as follows:

OS: Windows 7
Node: v7.7.1
NPM: 4.3.0

[artem-v-shamsutdinov]

Same here:

1. cloned the repo
2. npm i
3. npm start

OS: Windows 7
Node: v6.10.1
NPM: 3.10.10

[kptLucek]

Same here, warnings shows only on Windows (7 also in my case), Ubuntu works pretty much well.

[Predhin]

Same here. ./~/ng-metadata is showing warnings!

[jalbr74]

I think I've been able to get to the bottom of this. After reading the following post, I discovered my problem to be in the source-map-loader:
angular-redux/store#64

For some reason, the "exclude" section was being respected on Linux, but not Windows. So after some experimentation, I discovered that I had to add another item to the "exclude" section for Windows' sake.

So here's how my module.rules[] section looked in webpack.conf.js before making the change:

{
    test: /\.js$/,
    use: "source-map-loader",
    enforce: "pre",
    "exclude": [
        /\/node_modules\//,
    ]
},

Here's what solved my problem on a Windows 7 machine:

{
    test: /\.js$/,
    use: "source-map-loader",
    enforce: "pre",
    "exclude": [
        /\/node_modules\//,
        /\\node_modules\\/
    ]
},

Not sure if this will fix it for everyone, but I just thought I'd pass along what worked for me.

[Moorzee]

Worked here for warnings with ng2-toastr when building angular-cli & webpack.

Thanks pal, been wasting hours trying to resolve.....

[aciccarello]

Great, I think this can be closed then