I am having the following error only when I try to connect to our test CRM (Dynamics CRM 2016 - On Premise) with the Dynamics 365 Developer Toolkit plugin for Visual Studio 2017 Professional. The plugin works fine on our production environment.
I have installed the toolkit following these steps Install Dynamics 365 Developer Toolkit with Visual Studio 2017, including Step 6 – Update the Toolkit dlls with more recent versions from the SDK (Optional). I'm using SDK 8.2 and I have referenced the tool paths.
Everything else except the Entities is getting loaded in CRM Explorer, I am able to deploy webresources just fine, but when I right click in the CRM Explorer and select Add Plugin I get this error. Basically the same problem as described in this thread, but I couldn't find a solution there.
It's good to mention here that both of our CRM environments (test and production) are behind a corporate proxy, which was our main suspect for this problem, but after checking the network it seems like the proxy is not blocking anything. Also I have system administrator rights on both environments. There might be some difference in the configuration between the two environments that is causing this problem, I just don't know what to look for. Has anyone experienced such an issue?
