ValidationError: Progress Plugin Invalid Options

Question

When I run my project from angular cli. it shows me this error. (image attached).

I have updated my node_module files and search around many other platforms but...

options should NOT have additional properties
options should pass "instanceof" keyword validation
options should match exactly one schema in oneOf

ValidationError: Progress Plugin Invalid Options

options should NOT have additional properties
options should pass "instanceof" keyword validation
options should match exactly one schema in oneOf[![enter image description here][1]][1]

Answer 1

This error shows up when @angular-devkit/build-angular is old version (in my case it was 0.8.0), I upgraded it to a newer version 0.13.7 and it worked. And to avoid continuous issues while builing your application please makesure that webpack version is >=4.29