java.lang.NumberFormatException: For input string: "null" Error: Unable to access the conference room component in Citrix Access Suite.
 
 
HelpInfo
Error: Unable to access the conference room component in Citrix Access Suite.
Message

The attendee does not have proper credentials or the account is disabled.
Cause of Error

This error can occur if there are multiple domain controllers and the guest attendee's login information is sent to a domain controller that is not synchronized.
Solution Summary

Launch 'Configuration Tool', delete the guest accounts. Create a new registry entry 'VisitingAttendee' with the value 'DoNotDisableAccountsAndChangePasswords' in 'HKEY_LOCAL_MACHINE\\SOFTWARE\\Citrix\\CMCM'. Enter the DWORD value '1'. Recreate the guest accounts.
Solution Details

Metaframe Conferencing Manager has user interface and conference room components, which run published applications on servers. Participants can connect to the applications using the client devices.
To access the conference room component:
1) Launch 'Configuration Tool'.
2) Click the 'External Conference Service' tab.
3) Enter '0' in the 'Total accounts' box.
4) Click 'OK'.
5) Click 'Start', and click 'Run'. (The 'Run' dialog box appears.)
  'Run' dialog box
6) Enter 'regedit' in the 'Open' box.
7) Click 'OK'. (The 'Registry Editor' window appears.)
  'Registry Editor' window
  CAUTION: Making incorrect changes in the registry can cause serious problems that may require re-installation of the operating system.
8) From the tree view, expand 'HKEY_LOCAL_MACHINE'.
9) Expand 'SOFTWARE'.
10) Expand 'Citrix'.
11) Expand 'CMCM'.
12) From the 'Edit' menu, select 'New'.
13) Click 'Key'.
14) Enter 'VisitingAttendee'.
15) From the 'Edit' menu, select 'New'.
16) Click 'DWORD Value'.
17) Enter 'DoNotDisableAccountsAndChangePasswords'.
18) Select 'DoNotDisableAccountsAndChangePasswords'.
19) From the 'Edit' menu, click 'Modify'. (The 'Edit DWORD Value' dialog box appears.)
  'Edit DWORD Value' dialog box
20) Enter '1' in the 'Value data' box.
21) Click 'OK'.
22) Launch 'Configuration Tool'.
23) Click the 'External Conference Service' tab.
24) Enter the original value in the 'Total accounts' box.
25) Click 'OK'.
Applies to Software Version

Citrix Access Suite 4