Error starting Postbuilder NX 10.0

[paehv]

When starting postbuilder in NX 10.0.1 MP02, I get the following error when trying to open a post:

can't read "gPB(c_help,tool_button)": no such element in array
    while executing
"$gPB(c_help,tool_button) config -state $st"
    (procedure "UI_PB_com_ChangeCHelpState_mod" line 3)
    invoked from within
"UI_PB_com_ChangeCHelpState_mod $st"
    invoked from within
"if [info exists gPB(master_pid)] {
comm::comm send -async $gPB(master_pid) [list UI_PB_com_ChangeCHelpState_mod $st]
} else {
UI_PB_com_ChangeCHelpSta..."
    (procedure "UI_PB_com_ChangeCHelpState" line 3)
    invoked from within
"UI_PB_com_ChangeCHelpState disabled"
    (procedure "UI_PB_file_OpenPost_win" line 9)
    invoked from within
"UI_PB_file_OpenPost_win"
    (procedure "UI_PB_OpenPost" line 22)
    invoked from within
"UI_PB_OpenPost"
    invoked from within
".widget.f.tool.frame.open invoke"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list $w invoke]"
    (procedure "tk::ButtonUp" line 24)
    invoked from within
"tk::ButtonUp .widget.f.tool.frame.open"
    (command bound to event)

This error was happening from the beginning of NX 10.

[DJS · Accepted solution]

That is a known issue. Download the ‘PB10.0 SFB 08Dec2014 msgs.7z’ from here

Remove the original ‘msgs’ directory from the Post Builder's install
and replace it with the new one in the zip file.

[paehv]

Done it! Thanks a lot.