Cypress with Istanbul is not generating code coverage reports

Question

I have VueJS app and Cypress for testing. I need to have code coverage info.

Running tests in Cypress is generating seemingly correct .nyc_output/out.json file with numbers how many times some lines were executed.

How to generate correct report?

Problem is that npx nyc report says that everything is 0%

tree .nyc_output/

Sample from the out.json where numbers are different from zero

Answer 1

For me, downgrading nyc version solved it

npx [email protected] report