Exception condition "CNTL_ERROR WD-abap Smartform to pdf

Question

Hii, 
I am using a webdynpro - abap application. I am showing  a smartform as a pdf in one on the windows.
When the link in the main window is clicked, a secondary window. Instead of the pdf, I get following exception.Kindly help me understand, where would I be going wrong. Let me know if more details required.
**Exception condition "CNTL_ERROR" raised. **
Form: PBO_HTML_CONTROL of program SAPLSTXBC
Module: HTML_CONTROL of program SAPLSTXBC
Function: SSFCOMP_PDF_PREVIEW of program SAPLSTXBC
Method: DISPLAYPDF of program /1BCWDY/2TKFRFPNZA4CZYBGEB8F==CP
Method: IF_COMPONENTCONTROLLER~DISPLAYPDF of program /1BCWDY/2TKFRFPNZA4CZYBGEB8F==CP
Method: ONACTIONPDF of program /1BCWDY/2TKFRFPNZA4CZYBGEB8F==CP
Method: IF_WDR_VIEW_DELEGATE~WD_INVOKE_EVENT_HANDLER of program /1BCWDY/2TKFRFPNZA4CZYBGEB8F==CP
Method: INVOKE_EVENTHANDLER of program CL_WDR_DELEGATING_VIEW========CP
Method: IF_WDR_ACTION~FIRE of program CL_WDR_ACTION=================CP
Method: DO_HANDLE_ACTION_EVENT of program CL_WDR_WINDOW_PHASE_MODEL=====CP
The code in the DISPLAYPDF method is as follows:
method DISPLAYPDF .
DATA: I_RS38L_FNAM TYPE  RS38L_FNAM.
DATA: CTRL TYPE SSFCTRLOP.
DATA: OUT TYPE  SSFCOMPOP.
DATA: I_SSFCRESCL TYPE SSFCRESCL.
DATA: LT_OTFDATA TYPE TABLE OF ITCOO.
CTRL-GETOTF = 'X'.
CTRL-NO_DIALOG = 'X'.
CTRL-PREVIEW = 'X'.
OUT-TDNEWID = 'X'.
OUT-TDDELETE = ' '.
data: i_tsp03 type tsp03.
clear i_tsp03.
select single * from tsp03 into i_tsp03.
*OUT-TDDEST = i_tsp03-PADEST.
OUT-TDDEST = 'TEP1'.
********get context data
  DATA lo_nd_zwebquestionaire TYPE REF TO if_wd_context_node.
  DATA lo_el_zwebquestionaire TYPE REF TO if_wd_context_element.
  DATA ls_zwebquestionaire TYPE wd_this->element_zwebquestionaire.
* navigate from <CONTEXT> to <ZWEBQUESTIONAIRE> via lead selection
  lo_nd_zwebquestionaire = wd_context->get_child_node( name = wd_this->wdctx_zwebquestionaire ).
* get element via lead selection
  lo_el_zwebquestionaire = lo_nd_zwebquestionaire->get_element(  ).
* get all declared attributes
  lo_el_zwebquestionaire->get_static_attributes(
    IMPORTING
      static_attributes = ls_zwebquestionaire ).
********get context data ends
data: itab1 type TCHAR255.
data: itab2 type TCHAR255.
data: itab type zprint. "addition by chandani
data fm_name type rs38l_fnam..
clear fm_name.
CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
  EXPORTING
    FORMNAME             = 'ZCPESMARTFORM'
  IMPORTING
    FM_NAME              = fm_name
  EXCEPTIONS
    NO_FORM              = 1
    NO_FUNCTION_MODULE   = 2
    OTHERS               = 3.
CALL FUNCTION fm_name
EXPORTING
*   ARCHIVE_INDEX              =
*   ARCHIVE_INDEX_TAB          =
*   ARCHIVE_PARAMETERS         =
   CONTROL_PARAMETERS         = CTRL
*   MAIL_APPL_OBJ              =
*   MAIL_RECIPIENT             =
*   MAIL_SENDER                =
   OUTPUT_OPTIONS             = OUT
   USER_SETTINGS              = ' '
   NAME                       = 'test'
   ZWEBQUESTIONAIRE           = ls_ZWEBQUESTIONAIRE
IMPORTING
*   DOCUMENT_OUTPUT_INFO       =
   JOB_OUTPUT_INFO            = I_SSFCRESCL
*   JOB_OUTPUT_OPTIONS         =
TABLES                                  "addition by chandani
  itab                         = itab   "addition by chandani
* EXCEPTIONS
*   FORMATTING_ERROR           = 1
*   INTERNAL_ERROR             = 2
*   SEND_ERROR                 = 3
*   USER_CANCELED              = 4
*   OTHERS                     = 5
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
REFRESH LT_OTFDATA.
LT_OTFDATA[] = I_SSFCRESCL-OTFDATA[].
CALL FUNCTION 'SSFCOMP_PDF_PREVIEW'
  EXPORTING
    I_OTF                          = LT_OTFDATA
* EXCEPTIONS
*   CONVERT_OTF_TO_PDF_ERROR       = 1
*   CNTL_ERROR                     = 2
*   OTHERS                         = 3
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
DATA: PDF_DATA TYPE XSTRING,
      PDF_SIZE TYPE I.
DATA: L_DUMMY TYPE STANDARD TABLE OF TLINE.
CALL FUNCTION 'CONVERT_OTF'
EXPORTING
   FORMAT                      = 'PDF'
*   MAX_LINEWIDTH               = 132
*   ARCHIVE_INDEX               = ' '
*   COPYNUMBER                  = 0
*   ASCII_BIDI_VIS2LOG          = ' '
*   PDF_DELETE_OTFTAB           = ' '
IMPORTING
   BIN_FILESIZE                = PDF_SIZE
   BIN_FILE                    = PDF_DATA
  TABLES
    OTF                         = LT_OTFDATA
    LINES                       = L_DUMMY
* EXCEPTIONS
*   ERR_MAX_LINEWIDTH           = 1
*   ERR_FORMAT                  = 2
*   ERR_CONV_NOT_POSSIBLE       = 3
*   ERR_BAD_OTF                 = 4
*   OTHERS                      = 5
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
  DATA lo_nd_pdf TYPE REF TO if_wd_context_node.
  DATA lo_el_pdf TYPE REF TO if_wd_context_element.
  DATA ls_pdf TYPE wd_this->element_pdf.
  DATA lv_sources LIKE ls_pdf-sources.
* navigate from <CONTEXT> to <PDF> via lead selection
  lo_nd_pdf = wd_context->get_child_node( name = wd_this->wdctx_pdf ).
* get element via lead selection
  lo_el_pdf = lo_nd_pdf->get_element(  ).
* get single attribute
  lo_el_pdf->Set_attribute(
    EXPORTING
      name =  `SOURCES`
      value = PDF_DATA ).
endmethod.

Answer 1

Use -  with gui_download
call method cl_gui_frontend_services=>environment_get_variable
exporting
variable = p_envir_name
changing
value = ls_envir_path
exceptions
cntl_error = 1
error_no_gui = 2
others = 3.
call method cl_gui_cfw=>flush
exceptions
cntl_system_error = 1
cntl_error = 2
others = 3.
And refer the below notes: 972762
ITS 620 Patch 23 and SAPKB62061
ITS 640 Kernel Patch 148 and SAPKB64019
ITS 700 Kernel Patch 77 and SAPKB70010
and also refer the link below to get more info
http://www.sapfans.com/forums/viewtopic.php?f=13&t=325628&start=15
thanx
suriya