Visual Basic, runtime error: 91 Object variable or with block variable not set

runtime error: 91 Object variable or with block variable not set

Author	Message
Gunter Schmid #1 / 5	runtime error: 91 Object variable or with block variable not set Hello, I am experiencing this runtime error 91 Object variable or with block variable not set ONLY in the exe-File. If I run the program out of the IDE there is never a problem. This makes it tricky to trace. I have two programs using the webbrowser control, both having this problem. One program may run for hours doing the same thing over and over, so the code should be ok. But sometimes I get this error. Is this a known bug? regards Gunter
Tue, 12 Apr 2005 07:41:02 GMT

J Fren #2 / 5	runtime error: 91 Object variable or with block variable not set At the top of all your modules do you have :- Option Explicit : DefObj A-Z (tip from Joe (Nuke Me) Foster - that has shown up many potential problems for me) Also wherever you have a dynamic array do you do :- Dim MyArray() As String .... ReDim MyArray( 1 To Count ) If you do not do this then there is a slight possibility that 'scope' problems will turn up - and the wrong Array is redimensioned. Realistically you need to put some sort of routine tracing stuff in your code :- Private Sub MySub( Var1 As ... ) PushLoc "MySub" .... PopLoc "MySub" End Sub That will give you a clear idea where the error lies. Another method is to simply put in Line Numbers - these are still supported in VB - this will help you locate (at least roughly) the area in which the problem shows itself. Also have a look at your Compiler options - do you have any 'Advanced Optimizations' set ? The fact that it turns up in two programs is helpful - what code is shared between the two. - or common to both Apps On Fri, 25 Oct 2002 01:41:02 +0200, "Gunter Schmidt" Quote: >Hello, >I am experiencing this runtime error 91 Object variable or with block >variable not set ONLY in the exe-File. If I run the program out of the IDE >there is never a problem. This makes it tricky to trace. >I have two programs using the webbrowser control, both having this problem. >One program may run for hours doing the same thing over and over, so the >code should be ok. But sometimes I get this error. >Is this a known bug? >regards >Gunter
Tue, 12 Apr 2005 16:05:42 GMT

Max Kudren #3 / 5	runtime error: 91 Object variable or with block variable not set Gunter, Most likely you're trying to access an object which exists only under certain circumstances. Make sure you're checking If Not (xObj Is Nothing) before touching such objects. Hope this helps, Max Kudrenko Brainbench MVP Program for Visual Basic www.brainbench.com Quote: > Hello, > I am experiencing this runtime error 91 Object variable or with block > variable not set ONLY in the exe-File. If I run the program out of the IDE > there is never a problem. This makes it tricky to trace. > I have two programs using the webbrowser control, both having this problem. > One program may run for hours doing the same thing over and over, so the > code should be ok. But sometimes I get this error. > Is this a known bug? > regards > Gunter
Tue, 12 Apr 2005 19:34:29 GMT

Gunter Schmid #4 / 5	runtime error: 91 Object variable or with block variable not set Quote: > >I am experiencing this runtime error 91 Object variable or with block > >variable not set ONLY in the exe-File. If I run the program out of the IDE > >there is never a problem. This makes it tricky to trace. ----- Original Message ----- Newsgroups: comp.lang.basic.visual.misc Sent: Friday, October 25, 2002 10:05 AM Subject: Re: runtime error: 91 Object variable or with block variable not set > At the top of all your modules do you have :- > Option Explicit : DefObj A-Z > (tip from Joe (Nuke Me) Foster - that has shown up many potential > problems for me) > Also wherever you have a dynamic array do you do :- > Dim MyArray() As String > .... > ReDim MyArray( 1 To Count ) > If you do not do this then there is a slight possibility that 'scope' > problems will turn up - and the wrong Array is redimensioned. > Realistically you need to put some sort of routine tracing stuff in > your code :- > Private Sub MySub( Var1 As ... ) > PushLoc "MySub" > .... > PopLoc "MySub" > End Sub > That will give you a clear idea where the error lies. > Another method is to simply put in Line Numbers > - these are still supported in VB > - this will help you locate (at least roughly) the area in which the > problem shows itself. > Also have a look at your Compiler options > - do you have any 'Advanced Optimizations' set ? > The fact that it turns up in two programs is helpful > - what code is shared between the two. > - or common to both Apps Tx, I keep it in mind. For now I do not get this error, maybe I just needed to reboot the system. Both programs do use the microsoft HTML Object library, so I figure it might be connected with that. regards Gunter
Tue, 12 Apr 2005 19:43:35 GMT

Gunter Schmid #5 / 5	runtime error: 91 Object variable or with block variable not set Max, your were right. Following code caused the error: Me.brwWebBrowser1.Document.write HTML_String Why? With IDE the WebBrowser gets initialised, during runtime not. Since I get the data I need from an Inet-Control, I do not Navigate with the WebBrowser Control. Now I included following line, which solved the problem. If Me.brwWebBrowser1.Document Is Nothing Then Me.brwWebBrowser1.Navigate "" But I think there must a better way to initialize the document. Gunter Quote: > Gunter, > Most likely you're trying to access an object which exists only under > certain circumstances. Make sure you're checking If Not (xObj Is > Nothing) before touching such objects. > Hope this helps, > Max Kudrenko > Brainbench MVP Program for Visual Basic > www.brainbench.com Quote: > > Hello, > > I am experiencing this runtime error 91 Object variable or with block > > variable not set ONLY in the exe-File. If I run the program out of the IDE > > there is never a problem. This makes it tricky to trace. > > I have two programs using the webbrowser control, both having this problem. > > One program may run for hours doing the same thing over and over, so the > > code should be ok. But sometimes I get this error. > > Is this a known bug? > > regards > > Gunter
Wed, 13 Apr 2005 05:40:12 GMT

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