error TS5023: Compiler option 'enableIvy' is not recognized

I recently attempted to integrate IVY into my angular 7 beta project. To do this, I included enableIvy: true in the compilerOptions section of src/tsconfig.app.json.

However, upon running

ng build --prod --aot --output-hashing none
, an error was encountered as shown below:

error TS5023: Unknown compiler option 'enableIvy'.

Error: error TS5023: Unknown compiler option 'enableIvy'.
...

Has anyone found a solution to this issue?

Answer №1

Make sure to incorporate the useIvy setting within the angularCompilerOptions section

"angularCompilerOptions": {
   "useIvy": true
}

Answer №2

When working with <strong>tsconfig.json</strong>, be sure to remember that <code>compilerOptions
and angularCompilerOptions are distinct properties. Make sure to include "enableIvy": true under angularCompilerOptions and not under compilerOptions:

tsconfig.json:

{
  "compilerOptions": {
  ....
  },
  "angularCompilerOptions": {
    "enableIvy": true
  }
}

Answer №3

A new approach has been implemented

"angularCompilerOptions": {
   "enableIvy": "ngtsc"
}

This change is in response to the issue #23455

A new compiler pipeline called 'ngtsc' has been introduced to address global analysis dependencies. By setting "enableIvy" to "ngtsc" when running ngc, this new compiler can be accessed. It retains the same initialization logic but introduces a Program implementation that does not conduct global-level analysis like AngularCompilerProgram does. This will serve as the basis for the eventual Ivy compiler.

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