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}

Was it helpful?

Solution

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

OTHER TIPS

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.

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

-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.

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