Webpack rebuild error

[digital216]

OS?

Ubuntu 16.04

Versions

angular-cli: 1.0.0-beta.28.3
node: 7.4.0
os: linux x64
@angular/common: 2.4.5
@angular/compiler: 2.4.5
@angular/core: 2.4.5
@angular/forms: 2.4.5
@angular/http: 2.4.5
@angular/platform-browser: 2.4.5
@angular/platform-browser-dynamic: 2.4.5
@angular/router: 3.4.5
@angular/compiler-cli: 2.4.5

Repro steps.

Created the app with the angular-cli (ng new). Ran ng serve to make sure everything was working. All was good, webpack worked and reported:

Hash: 7a95e8c73d53b9f210c7                    
Time: 8041ms
chunk    {0} main.bundle.js, main.bundle.map (main) 17.2 kB {3} [initial] [rendered]
chunk    {1} styles.bundle.js, styles.bundle.map (styles) 205 kB {4} [initial] [rendered]
chunk    {2} scripts.bundle.js, scripts.bundle.map (scripts) 375 kB {4} [initial] [rendered]
chunk    {3} vendor.bundle.js, vendor.bundle.map (vendor) 2.83 MB [initial] [rendered]
chunk    {4} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry] [rendered]
webpack: Compiled successfully.

I was able to load the app in a browser. Made a small change to the app.component.ts file (removed the trailing new line). Saved the file, webpack attempted to re-bundle the file, but failed.

The log given by the failure.

Hash: 7a95e8c73d53b9f210c7                
Time: 613ms
chunk    {0} main.bundle.js, main.bundle.map (main) 17.2 kB {3} [initial]
chunk    {1} styles.bundle.js, styles.bundle.map (styles) 205 kB {4} [initial]
chunk    {2} scripts.bundle.js, scripts.bundle.map (scripts) 375 kB {4} [initial]
chunk    {3} vendor.bundle.js, vendor.bundle.map (vendor) 2.83 MB [initial]
chunk    {4} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry]

ERROR in Cannot read property 'length' of undefined
webpack: Failed to compile.

[born2net]

same issue, works fine on first build, subsequent builds fail.

ERROR in ./src/app/campaigns/sequencer.ts
Module build failed: Error
    at WebpackCompilerHost.populateWebpackResolver (C:\msweb\studioweb\node_modules\@ngtools\webpack\src\compiler_host.js:218:51)
    at C:\msweb\studioweb\node_modules\@ngtools\webpack\src\plugin.js:352:33
    at process._tickCallback (internal/process/next_tick.js:103:7)
 @ ./src/app/campaigns/index.ts 26:0-40
 @ ./src async
 @ ./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js
 @ ./~/@angular/core/src/linker.js
 @ ./~/@angular/core/src/core.js
 @ ./~/@angular/core/index.js
 @ ./src/main.ts
 @ multi webpack-dev-server/client?http://localhost:4208/ ./src/main.ts
webpack: Failed to compile.

versions

angular-cli: 1.0.0-beta.28.3
node: 6.9.5
os: win32 x64
@angular/common: 2.4.5
@angular/compiler: 2.4.5
@angular/core: 2.4.5
@angular/forms: 2.4.5
@angular/http: 2.4.5
@angular/language-service: 2.4.5
@angular/platform-browser: 2.4.5
@angular/platform-browser-dynamic: 2.4.5
@angular/router: 3.2.1
@angular/compiler-cli: 2.4.5

[diicar]

Same issue ... :(
rebuilld is too fast 🥇 thank you ;)

[born2net]

I agree, I started crying from joy of how fast it was... but started crying again when it crashed

[johannesjo]

Same here on ubuntu 16.10 and node 6.9.2.

Happens with ng-cli
1.0.0-beta.22-1
1.0.0-beta.24
1.0.0-beta.26
1.0.0-beta.28

[trevor-hackett]

I may be wrong, but I believe it may have to do with the fact that the typescript doesn't get compiled, or at least compiled correctly after the first initial build. See my other comment

[intellix]

I'm getting the same issue and have been debugging a little. Not found anything yet but here's an example project: https://github.com/intellix/angular-cli-b28/tree/master/src/app/lazy

I only have the problem when saving lazy SCSS or HTML. Saving a TS doesn't give Module build failed: error though

[born2net]

ok I reverted back to .26 so I can work for now but that was not enough.
I also had to:

npm install --save @ngtools/webpack@1.2.4

until .28 gets stable

[web-dave]

@born2net I'll try it out

[johannesjo]

npm install --save @ngtools/webpack@1.2.4 

That's it! Works also with the new version (.28).

[web-dave]

pew, have to do a workshop tomorrow. saved my day/night