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Go to the source files folder and find hidden .VS folder
There you can find something like
Open config folder and find applicationhost.config file
Open it and find <system.webServer><modules> section
At the bottom of <modules> add this lines. Make sure that you didn’t add it somewhere else
Code Block <add name="StreamTagFilter-2.0" type="Utility.IIS.StreamTagFilterModule, StreamTagFilter.NET.2.0, Version=1.0.5.0, Culture=neutral, PublicKeyToken=d3d707ec692e4024" preCondition="runtimeVersionv2.0" /> <add name="StreamTagFilter-4.0" type="Utility.IIS.StreamTagFilterModule, StreamTagFilter.NET.4.0, Version=1.0.6.2, Culture=neutral, PublicKeyToken=d3d707ec692e4024" preCondition="runtimeVersionv4.0" />The first line designed for .NET 2.0 - 3.9 and is outdated. The second line is for .NET 4.0 and higher. Make sure that the version in the lines is the same as installed version of StreamTagFilter in this example it is 1.0.6.2
Save it and re-run the application.
If this fails, try Option #2
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Option #2 (newest IIS Express versions)….
Try to run application first time and get HTML only page. This will initiate IIS Express settings. If you see the blank pages try this:
Go to C:\Users\<username>\Documents\IISExpress\config and adjust applicationhost.config in the same way as above:
Open applicationhost.config and find <system.webServer><modules> section
Code Block <add name="StreamTagFilter-2.0" type="Utility.IIS.StreamTagFilterModule, StreamTagFilter.NET.2.0, Version=1.0.5.0, Culture=neutral, PublicKeyToken=d3d707ec692e4024" preCondition="runtimeVersionv2.0" /> <add name="StreamTagFilter-4.0" type="Utility.IIS.StreamTagFilterModule, StreamTagFilter.NET.4.0, Version=1.0.6.2, Culture=neutral, PublicKeyToken=d3d707ec692e4024" preCondition="runtimeVersionv4.0" />
The first line designed for .NET 2.0 - 3.9 and is outdated. The second line is for .NET 4.0 and higher. Make sure that the version in the lines is the same as installed version of StreamTagFilter in this example it is 1.0.6.2
Save it and re-run the application.