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gotwarlost / istanbul

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale.
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Coverage Invalid report format [html] #884

Open rmartin94 opened 6 years ago

rmartin94 commented 6 years ago

Hi! I've been using karma and istanbul for quite a while. Been running some unit tests for my angular app, and now while trying to get the coverage for my test I run

ng test --code-coverage

and I'm getting the following error

29 05 2018 10:32:56.941:ERROR [karma]: { Error: Invalid report format [html] at Object.module.exports.create (D:\SDPWebDevGit\node_modules\istanbul-api\lib\input-error.js:6:15) at Reporter.add (D:\SDPWebDevGit\node_modules\istanbul-api\lib\reporter.js:51:30) at D:\SDPWebDevGit\node_modules\istanbul-api\lib\reporter.js:62:18 at Array.forEach (<anonymous>) at Reporter.addAll (D:\SDPWebDevGit\node_modules\istanbul-api\lib\reporter.js:61:14) at createReport (D:\SDPWebDevGit\node_modules\karma-coverage-istanbul-reporter\src\reporter.js:83:14) at browsers.forEach.browser (D:\SDPWebDevGit\node_modules\karma-coverage-istanbul-reporter\src\reporter.js:196:9) at Array.forEach (<anonymous>) at Collection.forEach (D:\SDPWebDevGit\node_modules\karma\lib\browser_collection.js:93:21) at CoverageIstanbulReporter.onRunComplete (D:\SDPWebDevGit\node_modules\karma-coverage-istanbul-reporter\src\reporter.js:195:16) at Server.<anonymous> (D:\SDPWebDevGit\node_modules\karma\lib\events.js:13:22) at emitTwo (events.js:131:20) at Server.emit (events.js:214:7) at Timeout._onTimeout (D:\SDPWebDevGit\node_modules\karma\lib\executor.js:51:17) at ontimeout (timers.js:475:11) at tryOnTimeout (timers.js:310:5) at Timer.listOnTimeout (timers.js:270:5) inputError: true }

This seems quite strange to me, it was working fine before, I haven't updated any node package. Tried cleanning cache, deleting the coverage folder with my previous results but no luck. Then I removed my karma and istanbul nodemodules and installed them again but this error persists. Been looking arround for a solution or if its a common problem but I didn't found anything.

Does someone stumbled with this? Thanks for any info or help!

oleg-koval commented 5 years ago

I have the same, already spent some hours debugging, but no luck

kievsash commented 5 years ago

Had this issue, but somehow removing node_modules and making npm install again solved this.