Studio 2017 AutoSuggest candidates not displayed

Issue may be related to inability to add or generate AutoSuggest dictionaries.

(Attempting to add a dictionary gives error message "The AutoSuggest dictionary file could not be read," and trying to generate one fails after extracting phrases, with message "unable to open database file," details attached (hopefully).) AutoSuggest dictionaries are one of my selected AutoSuggest providers, but after excluding them, still no display of any candidates from other providers.


All settings in Studio 2017 are identical to those in Studio 2015, where everything works fine. Tried repairing the installation, reinstalling, and restarting. Looking forward to seeing AutoSuggest candidates when I start typing, but so far, nothing at all. Any help would be appreciated. Thank you. P.S. Looking forward to Regex Match Autosuggest Provider for 2017.

<SDLErrorDetails time="11/18/2016 11:46:33 AM">
  <ErrorMessage>unable to open database file</ErrorMessage>
  <Exception>
    <Type>System.Data.SQLite.SQLiteException, System.Data.SQLite, Version=1.0.103.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139</Type>
    <ResultCode>CantOpen</ResultCode>
    <ErrorCode>14</ErrorCode>
    <HelpLink />
    <Source>System.Data.SQLite</Source>
    <HResult>-2147467259</HResult>
    <StackTrace><![CDATA[   at System.Data.SQLite.SQLite3.Open(String strFilename, String vfsName, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, Int32 maxPoolSize, Boolean usePool)
   at System.Data.SQLite.SQLiteConnection.Open()
   at Sdl.LanguagePlatform.TranslationMemoryTools.PhraseExtraction.DatabaseConverter.CreateBiligualPhraseFile(String path)
   at Sdl.LanguagePlatform.TranslationMemoryTools.PhraseExtraction.DatabaseConverter.Convert(String flatFilePath, String dbFilePath)
   at Sdl.LanguagePlatform.TranslationMemoryTools.PhraseExtraction.PhraseExtractionProcessor.CreatePhraseDb(DataLocation location, String dbFilePath)
   at Sdl.LanguagePlatform.TranslationMemoryTools.PhraseExtraction.PhraseExtractionProcessor.Process(String tmxFilePath, CultureInfo sourceCulture, CultureInfo targetCulture, Int32 maxIterationCount, Int32 maxTUs, String dbFilePath)
   at Sdl.TranslationStudio.Common.Jobs.PhraseExtractionJobRequest.Execute(IJobExecutionContext context)
   at Sdl.Desktop.Platform.Implementation.Services.Job.<_worker_DoWork>b__3()
   at Sdl.Desktop.Platform.Implementation.Services.Log.Resources(Object message, Action action)
   at Sdl.Desktop.Platform.Implementation.Services.Job._worker_DoWork(Object sender, DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>14.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>14.0.5746.0</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1041</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>TEN\MMM</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>TEN</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>8388132 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>