Conversion from 'Visual Studio' coverage format (.coverage) to any other formats is not working

Conversion from ‘Visual Studio’ coverage format (.coverage) to any other formats is not working – the generated output formats (Cobertura, Xml, HtmlInline_AzurePipelines) do not have any coverage information. Please see the attached for the ReportGenerator task logs from my Azure Pipeline run.

2020-01-06T08:41:09.9322747Z ##[section]Starting: ReportGenerator 2020-01-06T08:41:09.9490062Z ============================================================================== 2020-01-06T08:41:09.9490116Z Task : ReportGenerator 2020-01-06T08:41:09.9490162Z Description : ReportGenerator converts coverage reports generated by OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo, Clover, gcov or lcov into human readable reports in various formats. 2020-01-06T08:41:09.9490187Z Version : 4.4.0 2020-01-06T08:41:09.9490211Z Author : Palmmedia 2020-01-06T08:41:09.9490255Z Help : [More Information](https://github.com/danielpalme/ReportGenerator) 2020-01-06T08:41:09.9490278Z ============================================================================== 2020-01-06T08:41:10.2493259Z [command]"C:\Program Files\dotnet\dotnet.exe" *MASKED*\_work\_tasks\reportgenerator_be803a55-9253-4895-a525-be570d86f161\4.4.0\tools\netcoreapp2.1\ReportGenerator.dll -reports:*MASKED*\_work\_temp\**\*.coverage -targetdir:*MASKED*\ReportGeneratorIssue\CoverageReport1 -reporttypes:Cobertura;Xml;XmlSummary;HtmlInline_AzurePipelines -sourcedirs:*MASKED*\_work\4\s\unit-testing-using-dotnet-test -historydir: -plugins: -assemblyfilters:+* -classfilters:+* -filefilters:+* -verbosity:Verbose -tag:20200106.7_#28198 2020-01-06T08:41:10.3234022Z 2020-01-06T14:11:10: Arguments 2020-01-06T08:41:10.3244657Z 2020-01-06T14:11:10: -reports:*MASKED*\_work\_temp\**\*.coverage 2020-01-06T08:41:10.3244844Z 2020-01-06T14:11:10: -targetdir:*MASKED*\ReportGeneratorIssue\CoverageReport1 2020-01-06T08:41:10.3244957Z 2020-01-06T14:11:10: -reporttypes:Cobertura;Xml;XmlSummary;HtmlInline_AzurePipelines 2020-01-06T08:41:10.3245007Z 2020-01-06T14:11:10: -sourcedirs:*MASKED*\_work\4\s\unit-testing-using-dotnet-test 2020-01-06T08:41:10.3251452Z 2020-01-06T14:11:10: -historydir: 2020-01-06T08:41:10.3251526Z 2020-01-06T14:11:10: -plugins: 2020-01-06T08:41:10.3251566Z 2020-01-06T14:11:10: -assemblyfilters:+* 2020-01-06T08:41:10.3251630Z 2020-01-06T14:11:10: -classfilters:+* 2020-01-06T08:41:10.3252195Z 2020-01-06T14:11:10: -filefilters:+* 2020-01-06T08:41:10.3252329Z 2020-01-06T14:11:10: -verbosity:Verbose 2020-01-06T08:41:10.3252431Z 2020-01-06T14:11:10: -tag:20200106.7_#28198 2020-01-06T08:41:10.4694307Z 2020-01-06T14:11:10: Executable: *MASKED*\_work\_tasks\reportgenerator_be803a55-9253-4895-a525-be570d86f161\4.4.0\tools\netcoreapp2.1\ReportGenerator.Core.dll 2020-01-06T08:41:10.4697062Z 2020-01-06T14:11:10: Working directory: *MASKED*\_work\4\s 2020-01-06T08:41:10.4848853Z 2020-01-06T14:11:10: Settings 2020-01-06T08:41:10.4856829Z 2020-01-06T14:11:10: { "NumberOfReportsParsedInParallel": 1, "NumberOfReportsMergedInParallel": 1, "MaximumNumberOfHistoricCoverageFiles": 100, "RenderPngFallBackImagesForHistoryCharts": false, "CachingDurationOfRemoteFilesInMinutes": 10080, "DisableRiskHotspots": false } 2020-01-06T08:41:10.4857017Z 2020-01-06T14:11:10: { "MetricThresholdForCyclomaticComplexity": 30, "MetricThresholdForCrapScore": 15, "MetricThresholdForNPathComplexity": 200 } 2020-01-06T08:41:10.4972601Z 2020-01-06T14:11:10: Loading report '*MASKED*\_work\_temp\331ad181-bc73-4450-abdb-eb0ecd849815\ganesp_GANESHDT_2020-01-06.14_11_02.coverage' 1/2 in memory 2020-01-06T08:41:10.5006242Z 2020-01-06T14:11:10: Finished parsing *MASKED*\_work\_temp\331ad181-bc73-4450-abdb-eb0ecd849815\ganesp_GANESHDT_2020-01-06.14_11_02.coverage... 2020-01-06T08:41:10.5006613Z 2020-01-06T14:11:10: Loading report '*MASKED*\_work\_temp\ganesp_GANESHDT_2020-01-06_14_11_05\In\GANESHDT\ganesp_GANESHDT_2020-01-06.14_11_02.coverage' 2/2 in memory 2020-01-06T08:41:10.5009477Z 2020-01-06T14:11:10: Finished parsing *MASKED*\_work\_temp\ganesp_GANESHDT_2020-01-06_14_11_05\In\GANESHDT\ganesp_GANESHDT_2020-01-06.14_11_02.coverage... 2020-01-06T08:41:10.5009944Z 2020-01-06T14:11:10: Parsing of 2 files completed. 2020-01-06T08:41:10.5020002Z 2020-01-06T14:11:10: Coverage report parsing took 0.0 seconds 2020-01-06T08:41:10.5145548Z 2020-01-06T14:11:10: Initializing report builders for report types: Cobertura, Xml, XmlSummary, HtmlInline_AzurePipelines 2020-01-06T08:41:10.5183667Z 2020-01-06T14:11:10: Analyzing 0 classes 2020-01-06T08:41:10.5184192Z 2020-01-06T14:11:10: Creating summary 2020-01-06T08:41:10.5265146Z 2020-01-06T14:11:10: Writing report file '*MASKED*\ReportGeneratorIssue\CoverageReport1\Cobertura.xml' 2020-01-06T08:41:10.5379426Z 2020-01-06T14:11:10: Writing report file '*MASKED*\ReportGeneratorIssue\CoverageReport1\index.htm' 2020-01-06T08:41:10.5901424Z 2020-01-06T14:11:10: Writing report file '*MASKED*\ReportGeneratorIssue\CoverageReport1\Summary.xml' 2020-01-06T08:41:10.5905728Z 2020-01-06T14:11:10: Writing report file '*MASKED*\ReportGeneratorIssue\CoverageReport1\Summary.xml' 2020-01-06T08:41:10.5913044Z 2020-01-06T14:11:10: Report generation took 0.1 seconds 2020-01-06T08:41:10.6185631Z ##[section]Finishing: ReportGenerator

[kahuz]

@sathishreddy48 I had a similar issue and received the response below. https://github.com/microsoft/codecoverage/issues/18#issuecomment-1465720936

I hope this helps.

[ManikandanMani]

I fixed it, I found out that the downloaded file was corrupted and hence it couldn’t convert.