Error: Cannot find module 'ajv/dist/compile/codegen

[richie50]

ng build -c production fails on angularv12 on node version 16.1.0

  throw err;
  ^

Error: Cannot find module 'ajv/dist/compile/codegen'
Require stack:```
```code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/node_modules/ajv-formats/dist/limit.js',
    '/node_modules/ajv-formats/dist/index.js',
    '/node_modules/@angular-devkit/core/src/json/schema/registry.js',
    '/node_modules/@angular-devkit/core/src/json/schema/index.js',
    '/node_modules/@angular-devkit/core/src/json/index.js',
    '/node_modules/@angular-devkit/core/src/experimental/jobs/simple-registry.js',
    '/node_modules/@angular-devkit/core/src/experimental/jobs/index.js',
    '/node_modules/@angular-devkit/core/src/experimental.js',
    '/node_modules/@angular-devkit/core/src/index.js',
    '/node_modules/@angular/cli/utilities/config.js',
    '/node_modules/@angular/cli/lib/init.js',
    'node_modules/@angular/cli/bin/ng'
  ] ```

[alan-agius4]

@richie50,

Can you please provide the output of ng v and npm ls ajv?

Thanks.

[richie50]

@alan-agius4

[alan-agius4]

Looks like you are using an incompatible version of @angular-devkit/build-angular.

Have you used ng update to update to Angular 12?

[richie50]

Yes @alan-agius4

Using package manager: 'npm'
Collecting installed dependencies...
Found 64 dependencies.
    We analyzed your package.json and everything seems to be in order. Good work```

[alan-agius4]

Can you kindly share your package.json?

[richie50]

@alan-agius4 . Managed to fix it by reinstalling node_modules with npm install --save --legacy-peer-deps
Thanks for the help. :)

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