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Merger issue - invalid file, please ensure that uploading correct 2020-11-04t12:32:48.180z


**Originated From:** [https://products.aspose.app/slides/merger/navigation/uploaded/errorReportForm/errorReportForm](https://products.aspose.app/slides/merger/navigation/uploaded/errorReportForm/errorReportForm)
**Exception:** Invalid file, please ensure that uploading correct file
{"IsSuccess":false,"idError":"InvalidFile","Message":"Unknown file format."} undefined

Error on zipping file System.ArgumentNullException: Value cannot be null. Parameter name: paths at System.IO.Path.Combine(String[] paths) at Aspose.App.Helpers.PathSafe.GenerateAndValidate(String baseDir, String[] parts) in C:\JenkinsNode\workspace\Slides\Aspose.Slides.WebApps Premerge\Aspose.App\src\Aspose.App.API\Helpers\PathSafe.cs:line 25 at Aspose.App.Services.Error2Forum.Error2ForumService.d__4.MoveNext() in C:\JenkinsNode\workspace\Slides\Aspose.Slides.WebApps Premerge\Aspose.App\src\Aspose.App.API\Services\Error2Forum\Error2ForumService.cs:line 99

Please share the problematic files and we’ll look into this issue. We couldn’t reproduce this issue using sample Slides.