Decode HResult = -2147467259

Question

Can someone help me decode this HResult? What does it mean? I know the negative stands for a failure. How about the rest of the 10 bits?

I referenced MSDN HResult article here, but I am not sure how to determine what my facility and code bits are.

More info:

_message: "External component has thrown an exception."
Data: {System.Collections.ListDictionaryInternal}

Answer 1

I'll show you how to do it. Paste the negative number into Calculator (Windows) in programmer mode "Dec" setting. Then convert to "Hex" setting. You get the number: FFFFFFFF80004005. The error is 80004005 which is:

0x80004005
E_FAIL
Unspecified 

Unfortunately the provider of the function that gave you this error did not categorize the error.

Useful links:

1. MSDN - HRESULT Format
2. MSDN - HRESULT Error List

Answer 2

Another way to do it is as follows. An HRESULT should contain a System Error Code in its first 32 bits. Using an AND operation will retrieve the error code from the HRESULT:

int result = (-2147467259 & 0xFFFF)

result is 16389, which is not a part of the System Error Codes list, and as a result, is unspecified.

Answer 3

Print it as an hexadecimal number, then, use for instance, VisualStudio ErrorLookup, to get the message.

Answer 4

-2147467259 in decimal is 80004005 in hexadecimal (usually rendered as 0x80004005). That's "E_FAIL (Unspecified error)" in Win32.

Not a very helpful error code, but maybe it'll get you a half-step closer to a solution.