What's the issue?
If you have seen this error when attempting to upload a Connector for Microsoft Dynamics solution file or the Configuration Utility for Microsoft Dynamics CRM has reported an error during solution upload, there is a good chance that you have been upgraded to Microsoft Dynamics CRM 2013 SP1 and the current versions of these solution do NOT support the SP 1 update.
If you have existing organizations that were previously configured for integration to a Microsoft Dynamics ERP using Connector for Microsoft Dynamics that have been upgraded to Microsoft Dynamics CRM 2013 SP 1, then the existing solution should have been upgraded in place and you should not need to take any further action. This issue only occurs when attempting to configure an integration to a new Microsoft Dynamics CRM 2013 SP 1 organization. You can find out if you have been upgraded to SP 1 in the About dialog within Microsoft Dynamics CRM 2013:
Our upcoming CU 3 release will contain updated solutions that resolve this issue. Stay tuned to this blog for that release announcement.
What can you do in the meantime to get an updated organization integrated?
(not recommended, not supported, read this next section at your own risk)