Problem
During start of the addin, you get the following error:
| No Format |
|---|
System.Deployment.Application.InvalidDeploymentException: Exception reading manifest from file://MyPath/MyAddIn.vsto:
the manifest may not be valid or the file could not be opened.
---> System.Deployment.Application.InvalidDeploymentException: Manifest XML signature is not valid.
---> System.Security.Cryptography.CryptographicException: SignatureDescription could not be created for the signature algorithm supplied. |
Solution
You are using either an outdatet .NET or VSTO Runtime. Please download and install the latest runtimes:
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