An unexpected error has occurred. Your solution provider has been notified.

Hello,

I developed a managed package. And some of my clients experience an error :

Argument 1 cannot be null
An unexpected error has occurred. Your solution provider has been notified. (TWE)

How can I find the reason of this error, at least line in source code where error has occured?

Thanks,

Mikhail

September 9, 2010
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paul-lmi
when setting up the package in the org you develop in, one of the properties is the user to send exception emails to. make sure you configure that, as it's not done by default.

September 9, 2010
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mstein@hundw.com
Same here.

I configured the "Apex Exception Notification Recipient" with my user, which has a valid e-mail address, but I do not get any error mail whatsoever.

The error message in the org is:

An unexpected error has occurred. Your solution provider has been notified. (*package name*)