COMException: Exception from HRESULT: 0x80040304

[AGheidian]

Hi, I have geoprocessing tool which opens a MXD template file to make PDF out of the map, using Export method.

Intermittently this tool throws error  COMException: Exception from HRESULT: 0x80040304

I am releasing COM objects but still sometimes throws this error. This is snapshot of my code:

Anyone has any ideas?

[RussellBrennan]

This error maps to one of the following:

FDO_E_DATASET_CANNOT_RENAME	"Cannot rename the dataset with objects already open."
CADASTRAL_E_CONTAINS_COMPRESSEDDATA	"No license available."
WMSCONN_E_MISSING_URL	"URL is missing."
NETWORKLOADER_E_INVALID_FIELD_NAME	"An invalid field name was specified."
E_TEMPMETAFILE	"Cannot create temporary metafile."

Hope this helps.