Update AbpTagHelperResourceService.cs

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperResourceService.cs

@@ -63,7 +63,8 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bundling.TagHelpers
             foreach (var bundleFile in bundleFiles)
             {
                 var file = WebContentFileProvider.GetFileInfo(bundleFile);
-                if (!file.Exists)
+
+                if (file == null || !file.Exists)
                 {
                     throw new AbpException($"Could not find the bundle file from {nameof(IWebContentFileProvider)}");
                 }