Why do I see a ClickOnce Dependency Error?

Question

I have a Visio VSTO addin that has a dependency on a EULA. I am building and deploying using Visual Studio 2019 on Windows 10. This was working fine, up until the time I had to rebuild a Windows 10 dev machine.

The EULA depndency is installed under

C:\Program Files (x86)\Microsoft SDKs\ClickOnce Bootstrapper\Packages

In Visual Studio 2019 I can see and select the dependency that is deployed when I publish the plugin. However, when trying to install the ClickOnce addin from the product site I am getting the following error:

Error: Setup has detected that the file 'C:\Users\%USERNAME%\AppData\Local\Temp\VSD8AA0.tmp\cpaseulapackage\en/cpas-eula.txt' has either changed since it was initially published or may be corrupt.

In Visual Studio the 'Sign the ClickOnce manifests' and 'sign the assembly' options are checked.

I can't figure out what has changed, or caused the deployment to break. Any thoughts would be gratefully received.

Thanks and regards Andrew

I have made an answer. If you don't mind and it works, you could click '✔' to mark my reply as the accepted answer. It will also help others to solve the similar issue. — Jiale Xue
– Jiale Xue, Commented Nov 30, 2021 at 6:39

Jiale Xue · Accepted Answer · 2021-11-30 06:39:02Z

0

Just Refer to Alec's answer.

I made some modifications based on your situation, please try and tell me the effect.

In the following folder, you will find a product.xml file. C:\Program Files (x86)\Microsoft SDKs\ClickOnce Bootstrapper\Packages\cpaseulapackage

Open the product.xml file in Notepad (or any text editor) and under the section, you will find 1 or 2 URLs that point to the deployment package. Copy each URL into your web browser and manually download the packages.

Once the packages are downloaded, copy them to the same folder as the product.xml file (see #1 above).

answered Nov 30, 2021 at 6:39

Jiale Xue

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