ShareLogFile() fails [Windows 8.1 Store]

[AndrewAtAvenza]

We had some issues with ShareLogFile() failing with 0.8.6 (old, I know). It looked like it might be a Windows 8.1 vs Windows 10 issue; if there were a lot of files, it would fail on W8.1 but work in W10.

I updated to 1.0.1 and now ShareLogFile() doesn't work at all, at least in W10 (I haven't tested W8.1 yet). I just get "There was a problem with the data from ." There's no output to give me a clue about what's wrong unfortunately.

I tried to build the source so I could step into ShareLogFile() and see what's going wrong, but as dumb as it sounds, I couldn't figure out how to build the project as a stand-alone. I get all sorts of complaints about missing references.

[AndrewAtAvenza]

I managed to figure out how to jam in the MetroLog code into my app so I could debug into the ShareLogFile() call. It looks like I'm getting a System.UnauthorizedAccessException when attempting to get the stream in DoCreateEntryFromFile(). Specifically, this line gives the exception:

using (Stream stream = (await sourceFile.OpenReadAsync()).AsStream())

Oddly enough, if I try to catch it, I get a null pointer for the exception. I only know what it is because I see:

Exception thrown: 'System.UnauthorizedAccessException' in mscorlib.dll Exception thrown: 'System.UnauthorizedAccessException' in mscorlib.dll

In the output window.

[AndrewAtAvenza]

Figured it out; stupid user error. I was getting the default configuration, and then adding a StreamingFileTarget. This meant there were two identical file targets, so even though it would shut down & close the internal write streams for one, the other would still be open, causing a read access.

Obviously this was my fault, but it might worth thinking about adding some kind of idiot-proofing to make sure there aren't more than one log target pointing at the same file, at least within one Logger,