Package “@ionic/angular-toolkit” has no builders defined.

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Explanation:

When you see the error message “Package ‘@ionic/angular-toolkit’ has no builders defined” in your Ionic project, it means that the package you are trying to use, namely ‘@ionic/angular-toolkit’, does not have any custom builders defined in its configuration. In Ionic project, builders are responsible for executing specific tasks and actions during the build process.

To resolve this issue, you have a few options:

  • Option 1: Check for the correct package name: Make sure that you have entered the correct package name ‘@ionic/angular-toolkit’. If you have made a typo or provided the wrong package name, you will receive this error.
  • Option 2: Update the version of ‘@ionic/angular-toolkit’: It is possible that the version of the package you are using does not have the required builders defined. Try updating the package to the latest version by running the command npm update @ionic/angular-toolkit.
  • Option 3: Configure builders manually: If the package still does not have builders defined, you can consider configuring the builders manually. You can create custom builders in your Angular project’s ‘angular.json’ file to handle specific tasks. Here is an example of how you can define a custom builder:

"architect": {
   "build": {
      "builder": "@ionic/angular-toolkit:build",
      "options": {
         "customBuilderOption": "value"
      }
   }
}

In the above example, we define a custom builder named ‘@ionic/angular-toolkit:build’ and assign a value to a custom option ‘customBuilderOption’. You can modify the builder and options according to your specific requirements.

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