I am facing issue on ionic v-5 not creating build

Here we go . I was trying to create build a new project which is on es2018 version . i also my cli also updated
and even i facing this problem to generating the build it show some babel issue or missing eve.

but it thing my version is stil work on es5 because i have ionic 4 application at that application during making build facing not error issue generating build

please help me ,
ionic Developer

error issue "

An unhandled exception occurred: [BABEL] D:\wfh\newProjectDir\NautApp\www\common-es2015.e374ccc1d2ec82e4169d.js: Could not find plugin “proposal-numeric-separator”. Ensure the
re is an entry in ./available-plugins.js for it. (While processing: “D:\wfh\newProjectDir\NautApp\node_modules\@angular-devkit\build-angular\node_modules\@babel\prese
See “C:\Users\AwkAwk\AppData\Local\Temp\ng-eKdl1X\angular-errors.log” for further details.
[ERROR] An error occurred while running subprocess ng.


there’s an upstream issue with both babel and the angular CLI.

Temporary work around for now is

npm i @babel/compat-data
1 Like