EEXIST: file already exists on ng build

[360disrupt]

🐞 Bug report

Command (mark with an x)

- [x] build

Is this a regression?

The problem occurred after updating angular and angular-cli (don't know the prev version).

Description

Angular-cli complains about an already existing file in the node_modules cache. The problem can be (temporarily) solved by deleting .cache with rm -rf node_modules/.cache but reoccurs one build later again.

🔬 Minimal Reproduction

• ng build --prod --extra-webpack-config webpack.extra.js

The project is on:
https://github.com/grassberry-high/grow-frontend

🔥 Exception or Error

An unhandled exception occurred: EEXIST: file already exists, copyfile '/Users/user/Projekte/1-NODEJS/some-project/some-pi/frontend/node_modules/.cache/angular-build-dl/content-v2/sha512/36/86/afb82f76da09848c154ccb79a5213dc67698763412e526216fbce17a94bd0b1762da3627677b3ee97a05cdc837739fdc4dbdc08b13fbd50cbb0fb9a0b512' -> '/Users/user/Projekte/1-NODEJS/some-project/some-pi/frontend/dist/gh-frontend/runtime.24b02acc1f369d9b9f37.js'
See "/private/var/folders/q_/dr0933813977s5p6g5l754cc0000gn/T/ng-KwQpJ9/angular-errors.log" for further details.

angular-errors.log

    [error] Error: EEXIST: file already exists, copyfile '/Users/user/Projekte/1-NODEJS/some-project/some-pi/frontend/node_modules/.cache/angular-build-dl/content-v2/sha512/36/86/afb82f76da09848c154ccb79a5213dc67698763412e526216fbce17a94bd0b1762da3627677b3ee97a05cdc837739fdc4dbdc08b13fbd50cbb0fb9a0b512' -> '/Users/user/Projekte/1-NODEJS/some-project/some-pi/frontend/dist/gh-frontend/runtime.24b02acc1f369d9b9f37.js'
at Object.copyFileSync (fs.js:1743:3)
at SwitchMapSubscriber.rxjs_1.from.pipe.operators_1.switchMap [as project] (/Users/user/Projekte/1-NODEJS/some-project/some-pi/frontend/node_modules/@angular-devkit/build-angular/src/browser/index.js:332:28)

🌍 Your Environment

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.803.0
@angular-devkit/build-angular     0.803.0
@angular-devkit/build-optimizer   0.803.0
@angular-devkit/build-webpack     0.803.0
@angular-devkit/core              8.3.0
@angular-devkit/schematics        8.3.0
@angular/cdk                      7.2.0
@angular/cli                      8.3.0
@angular/material                 7.2.0
@ngtools/webpack                  8.3.0
@schematics/angular               8.3.0
@schematics/update                0.803.0
rxjs                              6.5.2
typescript                        3.5.3
webpack                           4.39.2

Anything else relevant?

Mac OSX

[alan-agius4]

Hi, which Node version are you using? Can you try to update to @angular-devkit/build-angular 0.803.3?

[360disrupt]

Node version: v11.15.0
Updated the package, but the error persists.

[alan-agius4]

Can you try to below steps please?

rm -rf dist
npm i @angular-devkit/[email protected] --save-dev
ng build --prod --extra-webpack-config webpack.extra.js

Thanks

[clydin]

Please be aware that Node.js v11 is EOL and is no longer supported. Can you try with v10.16.0+ or v12.0.0+? There is a known defect with file copying with MacOS on versions less than those.

[360disrupt]

@alan-agius4 these steps trigger the same problem.
@clydin I'll try to upgrade everything the next days, I had some problems recently with upgrading/or I'll use a diff. node version for backend/frontend. I'll come back.

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