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The shared variable does not exist????
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Daniel Faria
Oct 4, 2006, 12:10:10 PM10/4/06
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This seems really strange!!
I already use several shared variables within my whole project without any problem. At this point, I created a new one (a boolean network published) and everything seemed just fine (no errors were detected in my VI and it runs normally). However, when the VI on my host computer tries to use the shared variable, it generates an error message saying "LabVIEW: (Hex 0x8BBB0005) The shared variable does not exist." (see attached screenshot).
What is going on? I can't find any help online about that... Can anybody help me with this please?
Thanks!
I already use several shared variables within my whole project without any problem. At this point, I created a new one (a boolean network published) and everything seemed just fine (no errors were detected in my VI and it runs normally). However, when the VI on my host computer tries to use the shared variable, it generates an error message saying "LabVIEW: (Hex 0x8BBB0005) The shared variable does not exist." (see attached screenshot).
What is going on? I can't find any help online about that... Can anybody help me with this please?
Thanks!
Daniel Faria
Oct 4, 2006, 2:10:08 PM10/4/06
to
Right... Sorry...
I hope this is better...
I hope this is better...
shared variable does not exist.JPG:
http://forums.ni.com/attachments/ni/170/208632/1/shared variable does not exist.JPG
JLS
Oct 5, 2006, 5:10:08 PM10/5/06
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Hello,
This error can occur if you have an incorrect Path specified under your Bind to Source section for the shared variable - this could be as simple as a typographical error in the defined path. Double-check that portion of your shared variable definition, and hopefully it'll be as simple as finding a typo in your path. You should be able to browse for your variable/path by clicking Browse and then selecting Network Items if your shared variable is on the network. Can you find it by browsing?
I hope this helps!
Best Regards,
JLSMessage Edited by JLS on 10-05-2006 03:54 PM
This error can occur if you have an incorrect Path specified under your Bind to Source section for the shared variable - this could be as simple as a typographical error in the defined path. Double-check that portion of your shared variable definition, and hopefully it'll be as simple as finding a typo in your path. You should be able to browse for your variable/path by clicking Browse and then selecting Network Items if your shared variable is on the network. Can you find it by browsing?
I hope this helps!
Best Regards,
JLSMessage Edited by JLS on 10-05-2006 03:54 PM
Daniel Faria
Oct 6, 2006, 11:10:07 AM10/6/06
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JLS,
I've never used this "Bind to Source" option in any of my previous shared variables. Should I? Everything was working fine without it before I created this last variable. So... I really don't believe this is the problem...
Thanks,
Daniel
I've never used this "Bind to Source" option in any of my previous shared variables. Should I? Everything was working fine without it before I created this last variable. So... I really don't believe this is the problem...
Thanks,
Daniel
Daniel Faria
Oct 6, 2006, 11:10:08 AM10/6/06
to
Randall,
I also don't think your solution would work for my case. First of all, all my other shared variables are working normally. Only this one is not! Its settings are exactly the same as the others...
Anyway, I went to that "Variable Manager" tool and the first thing I encontered was the attached error message. Can you tell what it is? Do you think it is related to my problem?
Thanks,
Daniel
I also don't think your solution would work for my case. First of all, all my other shared variables are working normally. Only this one is not! Its settings are exactly the same as the others...
Anyway, I went to that "Variable Manager" tool and the first thing I encontered was the attached error message. Can you tell what it is? Do you think it is related to my problem?
Thanks,
Daniel
error1_variable_manager.JPG:
http://forums.ni.com/attachments/ni/170/209020/1/error1_variable_manager.JPG
JLS
Oct 9, 2006, 12:10:49 PM10/9/06
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Hello,
This error has been tied to enabling a description in your shared variable definition, but not entering a description - can you confirm this either way in your case? Right-click on your shared variable, choose Properties, and select the Description category. Either disabling the description with the checkbox or actually entering a description should be workarounds.
Best Regards,
JLS
This error has been tied to enabling a description in your shared variable definition, but not entering a description - can you confirm this either way in your case? Right-click on your shared variable, choose Properties, and select the Description category. Either disabling the description with the checkbox or actually entering a description should be workarounds.
Best Regards,
JLS
Daniel Faria
Oct 10, 2006, 2:10:09 PM10/10/06
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This is really amazing!!!
I've called NI and explained the whole issue and they couln't give me a solution yet!
What we have discovered so far is:
1) All the current shared variables work just fine;
2) If I create any new shared variable and try to access it on my host VI it generates that error;
3) If I delete one of my current ones, create another one exactly like it (inside the same library), and try to use it I also get the error.
JLS, all my shared variables have the "description" setting disabled. I really don't think the problem is related to this...
So, if you guys have any other suggestion (besides reinstalling the whole software!), please let me know, ok?
Thanks a lot for the help!!
Daniel
I've called NI and explained the whole issue and they couln't give me a solution yet!
What we have discovered so far is:
1) All the current shared variables work just fine;
2) If I create any new shared variable and try to access it on my host VI it generates that error;
3) If I delete one of my current ones, create another one exactly like it (inside the same library), and try to use it I also get the error.
JLS, all my shared variables have the "description" setting disabled. I really don't think the problem is related to this...
So, if you guys have any other suggestion (besides reinstalling the whole software!), please let me know, ok?
Thanks a lot for the help!!
Daniel
JLS
Oct 11, 2006, 10:10:09 AM10/11/06
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Hello,
Yep, this is strange, but it's not time to give up :) I have a few questions as we move forward:
1. Can you confirm that tagsrv.exe is running on your machine (ctrl+alt+delete and see the process list in Task Manager)?
2. Can you zip your project, or preferably a watered down version of it which reproduces the problem, so I can see if the problem follows your project to another machine? - it would be really nice if you can get this down to a single project - single VI - single library - single variable scenario.
3. You noted this problem occurs when you create new variables - is this confined to a specific library or a particular project, or is this ANY shared variable created in the LabVIEW environment?
Anyway, sorry you're seeing such a nasty problem - I look forward to hearing back from you!
Yep, this is strange, but it's not time to give up :) I have a few questions as we move forward:
1. Can you confirm that tagsrv.exe is running on your machine (ctrl+alt+delete and see the process list in Task Manager)?
2. Can you zip your project, or preferably a watered down version of it which reproduces the problem, so I can see if the problem follows your project to another machine? - it would be really nice if you can get this down to a single project - single VI - single library - single variable scenario.
3. You noted this problem occurs when you create new variables - is this confined to a specific library or a particular project, or is this ANY shared variable created in the LabVIEW environment?
Anyway, sorry you're seeing such a nasty problem - I look forward to hearing back from you!
cosmin
Mar 16, 2007, 9:40:10 AM3/16/07
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Hi,
I got the same problem some time ago and it was related to the fact that app was reading or writing to fast. Try to slow down the read or write part of your code and see what is going on.
cosmin
I got the same problem some time ago and it was related to the fact that app was reading or writing to fast. Try to slow down the read or write part of your code and see what is going on.
cosmin
Engelenfve
Aug 8, 2007, 6:10:19 AM8/8/07
to
Hi,
I am developing a client-server application on my windows PC with Labview 8.21 using shared variables. (also deploying with the invoke node function)
I have experienced error -1950679035 (0x8BBB005) many times in different occasions ,mostly my fault,.....DCOM wrong settings, Variable Manager hangs, wrong "bind to source" item selected (network item DIO in sted of project item shared variable), sometimes <populating node> appaeared with no items to select, running my client application before running the host application.....and the bad thing about this error, it latches!! and can only be cleared by restarting the SVE in "services". Restarting Labview and my application does not clear this error.
After many days I found that there is a problem with the starting of the SVE at first power-up of my PC.(auto start at power-up)
The SVE runs at power-up but needs to restart again in services. After this I can start my client before starting my host with programmatically clearing the error. At last this problem is solved. Stepping to the next one.....
Maybe there is a sort of dependancy problem at first power-up?
Greatings,
Frank.
I am developing a client-server application on my windows PC with Labview 8.21 using shared variables. (also deploying with the invoke node function)
I have experienced error -1950679035 (0x8BBB005) many times in different occasions ,mostly my fault,.....DCOM wrong settings, Variable Manager hangs, wrong "bind to source" item selected (network item DIO in sted of project item shared variable), sometimes <populating node> appaeared with no items to select, running my client application before running the host application.....and the bad thing about this error, it latches!! and can only be cleared by restarting the SVE in "services". Restarting Labview and my application does not clear this error.
After many days I found that there is a problem with the starting of the SVE at first power-up of my PC.(auto start at power-up)
The SVE runs at power-up but needs to restart again in services. After this I can start my client before starting my host with programmatically clearing the error. At last this problem is solved. Stepping to the next one.....
Maybe there is a sort of dependancy problem at first power-up?
Greatings,
Frank.
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