Signal Tap II Advanced Triggering error

Hi, I am a new comer here. This looks like the thread section to complain. :D

I am trying to practice the Signal Tap II tutorial.

Document title: SignalTap II with Verilog Designs

Document file name: tut_signaltapII_verilogDE2-70.pdf

I reach section 4.2. This section describes about Advanced Triggering Condition. When I try to save the .stp file, an error occurs. Below is the error message generated from Quartus.

Internal Error: Sub-system: SDR, File: /quartus/sld/sdr/sdr_tx_trigger.cpp, Line: 6393 Invalid advanced trigger condition expression
 Stack Trace:
    0x1340be: SDR_TX_TRIGGER::commit + 0x70e (sld_sdr)
    0x113287: SDR_TX_SESSION::commit_instance_at + 0x1f7 (sld_sdr)
    0x113ef2: SDR_TX_SESSION::commit_session + 0x72 (sld_sdr)
    0x113f9f: SDR_TX_SESSION::save_session + 0x5f (sld_sdr)
     0x830cc: is_number + 0x3cc (sys_mdb)
     0x66773: realloc + 0x35e (MSVCR90)
     0x53117: qt_winQString2MB + 0x117 (QtCore4)
     0xfc06d: QByteArray::at + 0xed (QtCore4)
     0x9692e: MatchUpperCase + 0x56de (sys_mdb)
     0x162f9: gapfnScSendMessage + 0x331 (USER32)
     0x63db7: malloc + 0x78 (MSVCR90)
     0xd5e5c: QCoreApplication::notifyInternal + 0x8c (QtCore4)
    0x123371: QCoreApplication::sendSpontaneousEvent + 0x21 (QtCore4)
     0x72da5: QApplication::winFocus + 0x925 (QtGui4)
     0x756cd: QApplicationPrivate::translateTouchEvent + 0xc3d (QtGui4)
     0x177c3: CharPrevW + 0x137 (USER32)
     0x17889: DispatchMessageW + 0xe (USER32)
     0x7437e: QApplicationPrivate::openPopup + 0x5fe (QtGui4)
     0xd85e5: QCoreApplication::exec + 0x105 (QtCore4)
      0x1085: qgq_main + 0x85 (quartus)
      0x1cb1: msg_main_thread + 0x11 (CCL_MSG)
      0x1bc8: _thr_final_wrapper + 0x8 (ccl_thr)
      0x1c25: msg_thread_wrapper + 0x85 (CCL_MSG)
      0x6720: mem_thread_wrapper + 0x32 (ccl_mem)
     0x2c4a3: msg_exe_main + 0x63 (CCL_MSG)
      0x112c: _main + 0x1c (quartus)
      0x1c97: _WinMain@16 + 0xb7 (quartus)
      0x137e: _atexit + 0x1a1 (quartus)
     0x133c9: BaseThreadInitThunk + 0x11 (kernel32)
     0x39ed1: RtlInitializeExceptionChain + 0x62 (ntdll)
     0x39ea4: RtlInitializeExceptionChain + 0x35 (ntdll)
  End-trace
  Quartus II Version 10.1 Build 197 01/19/2011 SJ Web Edition
 Service Pack Installed:  1

Kindly advice me about this matter. Cheers and stay healthy. :cool: