sqlite-net: Path is not of a legal form when swapping from sqlite-net to sqlite-net-pcl

So I have this code

        private async Task LoadDatabase()
        {
            var filePath = Path.Combine(this.CacheDir, "data.db");
            _db = new SQLiteAsyncConnection(filePath);
            await _db.CreateTableAsync<MusicSheetModel>();
        }

which basically is

“I:\\Repositories\\github.com\\redacted\\.debug.settings\\data.db”

or a folder under documents.

I previously used the sqlite-net package and it worked without a hitch. However, the service I am using needs the sqlite3 dll references and so I swapped to the pcl version. The pcl version however does not like the path I am giving it. The code itself did not change. I literally changed nothing but the nuget packages.