Can not find module angular-devkit build-angular

Question

Using npm  I followed the getting started directions on the Angular CLI quick start page    Angular CLI Quickstart  Running ng serve --open after creating and going into my new project  frontend  gave this error   Could not find module   angular-devkit build-angular  from  C   Users  Brandon  project-name  frontend   Error  Could not find module   angular-devkit build-angular  from  C   Users  Brandon  project-name  frontend    at Object resolve  C  Users Brandon project-name node modules  angular-devkit core node resolve js 141 11   at Observable rxjs 1 Observable  as  subscribe   C  Users Brandon project-name node modules  angular-devkit architect src architect js 132 40    I have tried suggestions from the other question similar to mine but it did not work  Answer was to run npm install --save-dev  angular-devkit build-angular   Similar Question  I have also deleted modules  cleared cache  then did an install which also did not work   package json       name    frontend     version    0 0 0     scripts         ng    ng       start    ng serve       build    ng build       test    ng test       lint    ng lint       e2e    ng e2e       private   true   dependencies         angular animations     6 0 2       angular common     6 0 2       angular compiler     6 0 2       angular core     6 0 2       angular forms     6 0 2       angular http     6 0 2       angular platform-browser     6 0 2       angular platform-browser-dynamic     6 0 2       angular router     6 0 2      core-js     2 5 4      rxjs     6 0 0      zone js     0 8 26       devDependencies         angular compiler-cli     6 0 2       angular-devkit build-angular     0 6 3      typescript     2 7 2       angular cli     6 0 3       angular language-service     6 0 2       types jasmine     2 8 6       types jasminewd2     2 0 3       types node     8 9 4      codelyzer     4 2 1      jasmine-core     2 99 1      jasmine-spec-reporter     4 2 1      karma     1 7 1      karma-chrome-launcher     2 2 0      karma-coverage-istanbul-reporter     1 4 2      karma-jasmine     1 1 1      karma-jasmine-html-reporter     0 2 2      protractor     5 3 0      ts-node     5 0 1      tslint     5 9 1         angular json          schema      node modules  angular cli lib config schema json      version   1     newProjectRoot    projects      projects          frontend            root              sourceRoot    src          projectType    application          prefix    app          schematics              architect              build                builder     angular-devkit build-angular browser              options                  outputPath    dist frontend                index    src index html                main    src main ts                polyfills    src polyfills ts                tsConfig    src tsconfig app json                assets                    src favicon ico                  src assets                              styles                    src styles css                              scripts                              configurations                  production                    fileReplacements                                          replace    src environments environment ts                      with    src environments environment prod ts                                                    optimization   true                 outputHashing    all                  sourceMap   false                 extractCss   true                 namedChunks   false                 aot   true                 extractLicenses   true                 vendorChunk   false                 buildOptimizer   true                                               serve                builder     angular-devkit build-angular dev-server              options                  browserTarget    frontend build                          configurations                  production                    browserTarget    frontend build production                                                extract-i18n                builder     angular-devkit build-angular extract-i18n              options                  browserTarget    frontend build                                  test                builder     angular-devkit build-angular karma              options                  main    src test ts                polyfills    src polyfills ts                tsConfig    src tsconfig spec json                karmaConfig    src karma conf js                styles                    src styles css                              scripts                    assets                    src favicon ico                  src assets                                                lint                builder     angular-devkit build-angular tslint              options                  tsConfig                    src tsconfig app json                  src tsconfig spec json                              exclude                       node modules                                                             frontend-e2e            root    e2e           projectType    application          architect              e2e                builder     angular-devkit build-angular protractor              options                  protractorConfig    e2e protractor conf js                devServerTarget    frontend serve                                  lint                builder     angular-devkit build-angular tslint              options                  tsConfig    e2e tsconfig e2e json                exclude                       node modules                                                               defaultProject    frontend

User · Answer

I had the same problem  as it did not installed       angular-devkit build-angular   The answer which has worked for me was this      npm i --only dev

User · Answer

I tried all the possible commands listed above and none of them worked for me  Check if Package json contain   angular-devkit build-angular  if not just install it using in my case version 0 803 19 worked      npm i  angular-devkit build-angular 0 803 19   Or checkout at npm website repositories for version selection

User · Answer

Install  angular-devkit build-angular as dev dependency  This package is newly introduced in Angular 6 0  npm install --save-dev  angular-devkit build-angular   or   yarn add  angular-devkit build-angular --dev

User · Answer

I struggled with the same problem just a minute ago  My project was generated using the v 1 6 0 of angular-cli   npm update -g  angular cli editing my package json changing the line   angular cli    1 6 0   to   angular cli     1 6 0   npm update did the trick

User · Answer

Running ng serve --open after creating and going into my new project  frontend  gave this error    After creating the project  you need to run   npm install    to install all the dependencies listed in package json

User · Answer

From angular 6 you can run the command below to fix that issue npm install --save-dev  angular-devkit build-angular  OR yarn add  angular-devkit build-angular --dev   If your you still can not resolve issues  you can see other option from an unhandled exception occurred  cannot find module   angular-devkit build-angular package json

User · Answer

D project contactlist npm install then D project contactlist ng new client  D project contactlist client ng serve  this worked for me for some reason i had to delete the client folder and start npm install from the contactlist folder  i tried every thing even clearing the cache and finally this worked

User · Answer

I looked inside node modules and apparently  only dependencies are installed  not devDependencies  With the new NPM  we need to explicitly get the devDependencies   npm i --only dev   If you wish to install just the devkit   npm install  angular-devkit build-angular   Joint idea with - ken107 github

User · Answer

I ve just encountered this problem and fixed it  I think the root cause of this problem is ng and current version of node js  10 6 0  and accompanying npm are not in sync  I ve installed the LTS version of node js  8 11 3  and the problem disappeared

User · Answer

Try to install angular-devkit for building angular projects npm install --save-dev  angular-devkit build-angular

User · Answer

Another issue could be with your dev-dependencies  Please check if they have been installed properly  check if they are availabe in the node modules folder   If not then a quick fix would be   npm i --only dev   Or check how your npm settings are regarding prod   npm config get production   In case they are set to true - change them to false   npm config set -g production false   and setup a new angular project   Found that hint here  https   github com angular angular-cli issues 10661  ken107 and lichunbin814   Hope that helps

User · Answer

Use npm update or  Run  npm install --save-dev  angular-devkit build-angular

User · Answer

did all the above didn t work    may be some issue with NPM  Yarn    was helpful     Yarn Install

User · Answer

npm install --save-dev  angular-devkit build-angular      It s Install  angular-devkit build-angular as dev dependency  This package is newly introduced in Angular 6 0

User · Answer

If you are updating from angular 7 to angular 8 then do this  ng update  angular cli  angular core   for more information read here https   github com just-jeb angular-builders blob master MIGRATION MD

User · Answer

If you are using angular version 8 please run the below command to fix this issue   ng update  angular cli  angular core

User · Answer

Run the below command to get it resolved  Whenever you pull a new project  few dependencies wont get added to the working directory  Run the below command to get it resolved  npm install --save-dev  angular-devkit build-angular

User · Answer

This worked for me  Type npm audit fix in the commandline  Afterwards I was able to use ng serve --open again

[node.js] Can not find module “@angular-devkit/build-angular”

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