Error message during MAME db creation "the underlying provider failed on Open", in RC4.0.0b11

[MELERIX]

during the MAME db creation it throws that error message and stop creating the db.

[Eric Bole-Feysot]

This error happens when the database (.rdt) is still open in another version of romcenter. Maybe you have 2 versions running at the same time ?

[MELERIX]

no other version opened at same time, just this single version.

I'm using this mame version: http://www.progettosnaps.net/mameui/packs/MAMEUI64_0.186_31-05-2017.7z

[Eric Bole-Feysot]

Can you post the log file (C:\ProgramData\romcenter\romcenter_xml.log) ? Delete log file, start rc and raise the error, then zip the log file and post here. I would like to know when it happens exactly. It is maybe a problem with the db not having time to be unlocked until the next operation start. I have added some delay and unlock checks, but I want to be sure i'm at the right place.

[Freddy]

Hi, same issue here. Hope attached log helps to solve.

[Eric Bole-Feysot]

Issue #63 was marked as a duplicate of this issue.

[Eric Bole-Feysot]

Changed way files are opened. Hope this will fix the problem.

[Eric Bole-Feysot]

Removing milestone: 4.0 (automated comment)

[Eric Bole-Feysot]

Removing version: 4.0.0b11 (automated comment)