An unhandled exception occurred: Cannot read property ‘Minus’ of undefined


i uninstall and install the npm using the command

npm intall

and getting error after this
i also tried

npm audit fix --force

after that the error come
An unhandled exception occurred: Cannot read property ‘Minus’ of undefined
See "/private/var/folders/8n/6vsx9lx93lx9wrgxm1q_yv4c0000gn/T/ng-pMlA9a/angular-errors.log" for further details.
npm ERR! Test failed. See above for more details.

Source: AngularJS Questions

Categorized as angularjs, node.js Tagged ,


same here


To fix this, i had to update @angular/compiler-cli from 10.0.2 to 10.1.1

Nihanth Mutluru

Try updating to latest versions of all the dependencies in package.json. I faced the same issue and spent 2 weeks finding the right solution. Do “ng update” and it will work.

Nikita Srivastava

still not working


i tried the downgrade to 10.1.1, and ng update but still not working 🙁


I’m no expert but this worked for me

npm i [email protected]
npm i @angular/[email protected]
npm i @angular/[email protected]

check versions in place inside project using ng version

Now I can run ionic serve without errors

facing the same problem, with the lastes @Angular/[email protected]

got same error. it’s bug in new version of @angular/compiler-cli
fixed by downgrade version to “10.0.12”

UPD. checked on new version “@angular/compiler”: “~10.1.1” – works fine

Carleton Spencer

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