Outlook Module sample throws "Value cannot be null. Parameter name: recipient"

Question

We have an Outlook Module Manifest that worked two weeks ago against Office 365 (never against Exchange 2013).

When we tried to remove it and add it again today, we got the following error message:

Value cannot be null. Parameter name: recipient

We then tried to add the Outlook Module Manifest sample from here, but that throws the same error message.

Any idea what we may be missing? Or did Microsoft change their Office 365 infrastructure, breaking their own sample?

Answer 1

此错误消息可能只是想告诉您，您的帐户目前没有分配Exchange Online许可证。用于上载组织扩展的帐户需要有效的Exchange Online许可证。