UNSUPPORTED_API_VERSION error when connecting to production org

[Former user]

Hi,

when I try to connect using Illuminated Cloud to my production org I got the error: UNSUPPORTED_API_VERSION: Invalid Api version specified on URL.

Production org is still on Spring '18 so I selected 42.0 as API Version (I tried with 41.0 too) but the error still appears.

How can I fix ? In attachment a screenshot of the configuration screen

Thank you, Attilio

[Scott Wells]

Are you using the Summer '18 pre-release build that I posted? If so, it can only be used with Summer '18 orgs. If you still need to work with Spring '18 orgs you'll need to revert to the official build until Summer '18 is fully released. The reason is that the WSDL-based API client is different between Spring '18 and Summer '18 and can't be used with both. If you're not using that pre-release build then there must be some other issue so I'll likely need to get some other diagnostic info from you.

[Scott Wells]

Resolving due to lack of activity. If this is still happening, feel free to reopen with additional details and I'll definitely take a look.