Problems with saprfc library: CallReceive iconv error

Question

Hi,
I tried to execute the following few lines of code
rfc = SAP::Rfc.new(:ashost => "iwdf3018.wdf.sap.corp" , :sysnr => "50" ,:lang => "EN" , :client => "800" , :user => "removed" , :passwd => "removed" , :trace => "0" )
iface = rfc.discover("RFC_GET_NAMETAB")
iface.TABNAME.value = "BAPIMATDET"
rfc.call iface
nameTab = iface.NAMETAB.value
and get the following error message for the 'call' statement
.../lib/ruby/gems/1.8/gems/saprfc-0.31-mswin32/lib/SAP/rfc.rb:1008:in `CallReceive': (16to8) iconv error: No error (RuntimeError)
        from C:/gluby/lib/ruby/gems/1.8/gems/saprfc-0.31-mswin32/lib/SAP/rfc.rb:1008:in `call'
when I set a breakpoint within the function module I can see the to be returned data, but seems like it doesn't get back to me.
calling other function modules works just fine.
Anybody any ideas??
Best,
Stefan

Answer 1

Hi - I just tried this:
[code]
#!/usr/bin/ruby
require 'rubygems'
require_gem 'saprfc'
$stderr.print "loaded...\n"
rfc = SAP::Rfc.new(:ashost => "ubuntu.local.net" ,
                   :sysnr => "01" ,:lang => "EN" ,
                   :client => "001" ,
                   :user => "developer" ,
                   :passwd => "developer" ,
                   :trace => "1" )
$stderr.print "connected...\n"
iface = rfc.discover("RFC_GET_NAMETAB")
$stderr.print "discovered...\n"
iface.TABNAME.value = "BAPIMATDET"
rfc.call(iface)
$stderr.print "called...\n"
iface.NAMETAB.hashRows do |r|
  $stderr.print "EXLENGTH: #{r['EXLENGTH'].unpack("H*")}\n"
end
[/code]
And it works fine for me:
[code]
loaded...
connected...
discovered...
called...
EXLENGTH: 0012
EXLENGTH: 0005
[/code]
Do you have a byte rder problem?