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-rw-r--r--lib/debugger/src/dbg_wx_trace.erl4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/debugger/src/dbg_wx_trace.erl b/lib/debugger/src/dbg_wx_trace.erl
index 4438466bb0..879887879a 100644
--- a/lib/debugger/src/dbg_wx_trace.erl
+++ b/lib/debugger/src/dbg_wx_trace.erl
@@ -72,6 +72,10 @@ start(Pid, TraceWin, BackTrace) ->
start(Pid, TraceWin, BackTrace, Strings) ->
case whereis(dbg_wx_mon) of
+ undefined ->
+ Parent = wx:new(),
+ Env = wx:get_env(),
+ start(Pid, Env, Parent, TraceWin, BackTrace, Strings);
Monitor when is_pid(Monitor) ->
Monitor ! {?MODULE, self(), get_env},
receive