NUnit [TearDown] fails — what process is accessing my files?

Question

Final Edit: I found a solution to the problem (at the bottom of the question).

I\'ve got an Nunit problem that\'s causing me grief. Edit:

Answer 1

I know this answer is over a year late, but for anyone reading in the future...

I had a similar problem to yours - attempting to delete test databases in between tests failed because of the SQLite database file remaining open. I traced the problem in my code to a SQLiteDataReader object not being explicitly closed.

SQLiteDataReader dr = cmd_.ExecuteReader();
while (dr.Read())
{
    // use the DataReader results
}
dr.Close();  //  <-- necessary for database resources to be released