Could not load file or assembly 'file:///D:\home\site\wwwroot\bin\ClearScriptV8.win-x64.dll' or one of its dependencies. Could not find or load a specific file. about javascriptengineswitcher HOT 10 CLOSED

Hello, Sven!

What versions of the JavaScriptEngineSwitcher.V8 and Microsoft.ClearScript.V8.Native.win-x64 packages do you use?

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4. running locally on IISExpress works
5. after using Web Publish to deploy to Azure Web App, error is:

Most likely, your deployment script does not copy the ClearScriptV8.win-x64.dll file.

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updated to latest versions 3.17.2 and 7.2.2

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Apparently, this is a deployment error. You may have to manually edit the deployment script.

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4. running locally on IISExpress works
5. after using Web Publish to deploy to Azure Web App, error is:

Most likely, your deployment script does not copy the ClearScriptV8.win-x64.dll file.

Meanwhile I figured out a way to solve it:

The file was existing but seems not to be overridden correctly by Web Publish. So I removed bin-folder manually by using App Service Editor (or alternatively Kudu). After the next deploy it worked.

I can remember that happend the last time I updated JavaScriptEngineSwitcher and/or ClearScript package too. Maybe there is some problem with file getting locked and not released as other files in the bin-folder do not have that problem?

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In principle, updating of native assemblies always require an restart of IIS or application pool.

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For sure, but there is no problem with any other DLL than ClearScriptV8.win-x64.dll.

I will close that issue.

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How many of these assemblies are native?

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Can't tell you. I did not dive into this that deeply.

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It is quite possible that all other assemblies are managed.

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