Error Message 80042729 when saving the project

I get error message 80042729 when I attempt to save a project. It also occurs when the system looks like it is attempting to save the state of the IDE when I get past the Debug error message that comes up unless I use the Control-F5 option. I have searched all of MSDN, Microsoft, and Visual Studio 2005 and had absolutely no hits on either message.

[349 byte] By [windowsjunkie] at [2007-12-24]

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# 1

I am getting the exact same error. I too have searched for any information on this error unsuccessfully.

Cadabuz at 2007-8-31 >

top of Msdn Tech,Visual Studio Express Editions,Visual C# 2005 Express Edition...

# 2

Is there any errors in the event log on the machine. Can you post the rest of the error message.

GlennWilson at 2007-8-31 >

# 3

I'm getting this error whenever I build my project. Here's what I did that led up to it:

I'm using VS C# 2005 Express Edition. I added a TabControl to Form1, and got the two default tabs. I couldn't figure out how to add more tabs using the GUI, so I opened Form1.Designer.cs, expanded the Windows Form Designer generated code region, and copied-and-pasted the code for adding two more tabs. It worked fine, and I wrote a lot more code without any problems. Then I wanted another tab. This time, I played with the GUI some more, and found out how to properly add a tab. (Click near the top of the tabcontrol, to select the tabcontrol (or right-click on the body of the control, and select "Select tabcontrol1"), then right-click, and select "Add Tab".) As soon as I hit F6, I got the 80042729 error. It now happens every time I build.

As an experiment, I created a new project, and did only what I described above, to see if I could recreate the problem. The error did not occur, so something more than just adding a tab manually, then via GUI, is responsible. However, I believe that adding a tab is what triggered it.

In the absence of any way to make the 80042729 error go away, I'm just going to create a new project, create all the tabs I need at once (via GUI), then copy-and-paste all of my code from the old project to the new.

Glenn,

There is no "rest of the error message." I get a messagebox titled, "Microsoft Visual C# 2005 Express Edition", with the red error icon, those 8 digits, and an "OK" button. How do I access the event log on the machine? Is this a file in the VS directory? Or a Windows system file? TIA.

--Rocky Raher

Update: I didn't have to recreate the project. I closed the project (after getting about 3 or 4 more 80042729 messageboxes), then opened it again. That last tab I added wasn't there (!?), but neither was the 80042729 problem. I added a tab using the GUI, and the program builds and runs without error.

RockyRaher at 2007-8-31 >

# 4

Why not just delete the code you copied and duplicated and then add your tabs the correct way?

EltonH at 2007-8-31 >

# 5

You can access the event log through the control panel and the administration tools section, check in both the Application and System logs around the time that the error was accuring.

GlennWilson at 2007-8-31 >

# 6

I got the same error after adding a tab control to an existing windows form.

I took 4 controls (2 labels, a text box, and a rich text box), cut them onto the clipboard, and pasted them into the tab control's first page. I then made another set of controls (same types) on the second page. I renamed both tabs' text properties. I received this error when I tried to build the solution.

Like Rocky, I was able to get rid of the error by closing the solution and then reopening it (didn't have to restart the IDE). However, the controls on the second page were gone. And the events for my first page's textbox were no longer wired.

Nothing was in my Application or System logs when I looked through the event viewer that related to Visual C#. Defintely nothing around the time I experienced the error.

Zinkyu at 2007-8-31 >

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