Runtime Error in Universal/stringmap

Targets macOS
1

Does anyone have an idea what this Runtime Error is about?

Location: Universal/stringmap.h: 192
Condition: nullptr == mlterators

MacOS 10.12.5
App made with Xojo 2016r4
32bit

2

That error suggests you found a bug of some sort when freeing up strings (really odd spot)

Can be replicated in a sample or isolated to some specific code ?

3

I’m working on getting more information from the user.

4

Crash log:

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0xa1659496 __pthread_kill + 10
1 libsystem_pthread.dylib 0xa173fc63 pthread_kill + 90
2 libsystem_c.dylib 0xa15b9a34 abort + 141
3 libsystem_c.dylib 0xa15842aa __assert_rtn + 311
4 com.xojo.XojoFramework 0x0234443d 0x233b000 + 37949
5 com.xojo.XojoFramework 0x024dc832 0x233b000 + 1710130
6 com.xojo.XojoFramework 0x02500461 0x233b000 + 1856609
7 com.xojo.XojoFramework 0x02500371 0x233b000 + 1856369
8 com.xojo.XojoFramework 0x024fe89a RuntimeViewDestructor + 172
9 com.mothsoftware.mailarchiverx 0x000396a0 Window.__Exit%%o + 34
10 com.xojo.XojoFramework 0x024ebc4f RuntimeUnlockObject + 809
11 com.mothsoftware.mailarchiverx 0x00f24951 CCExport.CCExport.PMExportFormat_Open%%o<CCExport.CCExport>o + 5452
12 com.mothsoftware.mailarchiverx 0x00d60f77 Delegate.IM_Invoke%%o + 83
13 com.mothsoftware.mailarchiverx 0x00b51dc2 AddHandler.Stub.2%% + 51
14 com.xojo.XojoFramework 0x024fe267 FireWindowOpenEvents + 59
15 com.xojo.XojoFramework 0x024fe2b0 FireWindowOpenEvents + 132
16 com.mothsoftware.mailarchiverx 0x00038f3b Window.Window%%o + 64
17 com.mothsoftware.mailarchiverx 0x016677a6 UndoWindow.Constructor%%oi4 + 275
18 com.mothsoftware.mailarchiverx 0x00cc8c1f ExportWindow.ExportWindow.Constructor%%o<ExportWindow.ExportWindow>sb + 221
19 com.mothsoftware.mailarchiverx 0x00e5daab MaxModel.Export%%oso + 602
20 com.mothsoftware.mailarchiverx 0x0138fcb5 MainWindowController.DoDataExport%%oso + 385
21 com.mothsoftware.mailarchiverx 0x01315eaa DBWindow.DoExport%%os + 3209
22 com.mothsoftware.mailarchiverx 0x012fd7d5 CCToolbar.CCToolbar.MainToolbar1_DropDownMenuAction%%o<CCToolbar.CCToolbar>ooo + 528
23 com.mothsoftware.mailarchiverx 0x013097d3 Delegate.IM_Invoke%%ooo + 103
24 com.mothsoftware.mailarchiverx 0x01309829 AddHandler.Stub.16%%oo + 74

And code:

[code] me.AddRow “Evernote”
me.AddRow “Filemaker”
me.AddRow “MBOX”
me.AddRow “PDF”
me.AddRow “RTF”
me.AddRow “Text”

'now disable the formats that don't work with the export type
dim thePopup as NSPopUpButtonMBS = me.NSPopUpButtonMBS
thePopup.autoenablesItems = False

dim theItem as NSMenuItemMBS
if ExportType = "Database" or ExportType = "Mailbox" or ExportType = "MailboxAndSubs" then
  theItem  = thePopup.itemWithTitle("Evernote")
  if theItem <> nil then theItem.Enabled = False
  theItem  = thePopup.itemWithTitle("RTF")
  if theItem <> nil then theItem.Enabled = False
end if[/code]