“Method '~' of object '~' failed”

问题:

I have noticed that about every third time or so I start up the VB6 IDE, a message box appears with the following error message:-

Method '~' of object '~' failed

This doesn't happen for any particular project or with any other thing in common that I have noticed. It doesn't appear to cause any problems after dismissing the message. My question is: ought I to worry about this, and if so, what should I do about it.

I have noted these other questions about the same error message here, here and here, but I get the message on opening up the project.

回答1:

I used to occasionally run into this error and, in my case, it was caused by the Visual Source Safe add-in (bad install I guess; re-install corrected the issue). It never caused a problem; it was just a bother. As Jon stated in the comments, I would try shutting off add-ins to see if that fixes the issue. Another thing is to make sure you are running Service Pack 6.

回答2:

This is usually caused by locked clipboard on local machine. VB6 IDE add-ins use clipboard to copy/paste icons to toolbar buttons because the add-in API does not expose any other way of putting an image there.

Usually Remote Desktop client (mstsc.exe) is the culprit of the locked clipboard. The way Microsoft implemented transfer to remote clipboard is by probing local clipboard for available formats which locks it for a while. Clipboard is awfully designed global resource that can be accessed by a single process at a time and OpenClipboard API fails in flames for other processes if the resource is not currently available.

回答3:

I uninstalled Visual Studio 6.0 and then re-installed it. This cleared the “Method '~' of object '~' failed” error for me. My VB 6 now appears to be functioning properly. I believe that, in my case, it has to do with several of the COM objects not being registered properly. My new machine received a ghost image from my old box which had VS on it.

回答4:

I started getting this error all of a sudden on both of my development machines (one 32-bit, the other 64-bit). In my searching for a solution, someone made a tangential reference to SourceSafe.

Ahh, then it occurred to me that I had been recently cleaning up a project (clearing out .bak files, etc.), and one of the files I cleaned-out was 'MSSCCPRJ.SCC' (seeing how SourceSafe was - for our group - a distant relic, I felt "safe" removing this file from the project folder).

Long story short: restoring the file 'MSSCCPRJ.SCC' to the project folder, resolved this error.

回答5:

I just came across this error while running VB6 on Windows Server 2012 R2. The offending Add-In was Visual Component Manager 6.0. Once I disabled that, the IDE was able to open without the Method '~' of object '~' failed issue. I'm not sure if that points to an installation issue or just "ancient" software on a "modern" OS.

For anyone else trying to install VB6 on Windows 7, 8, 10, 2012, etc., here are some useful links:

http://www.fortypoundhead.com/newbrowseresults.asp?catid=34

http://it.toolbox.com/blogs/locutus/how-to-install-visual-studio-6-onto-windows-10-70155

回答6:

I don't know about this specific error, but I do have some background information about this error message.

COM defines two levels of error information. All COM methods and properties have a return value with the type HRESULT, where 0 (S_OK) indicates success and negative values indicate an error. In addition there is a mechanism to provide so called "rich error information".

If a COM object generates rich error information, VB6 will show the information provided. If a COM object returns a negative value, but does not provide rich error information, then VB6 shows the message “Method '~' of object '~' failed”.

There are some standard error codes like E_POINTER and E_NOTIMPL which are often returned by COM objects in C++. All of these result in the message “Method '~' of object '~' failed”.

If you are implementing a COM object in C++, my advice is to always generate rich error information. (In ATL you just have to call the Error function.)

回答7:

I just had the same experience when starting VB6 on my Windows 7 Ultimate desktop PC via a shortcut to a VB6 project (which, of course, starts VB6.) The notification box was titled "Visual Component Manager" and the message was "Method '~' of object '~' failed". It occurred when first starting the VB6 IDE, before the project was visible in the IDE. I have been using this process with this same project for several years with no issues, but today that message box popped up and had to be acknowledged. The one thing that I did differently today, and I believe this caused my problem, was to start an Excel 2007 workbook first and then start the VB6 project about three seconds later. Both were loading at the same time and they were probably battling each other for something they both needed. Starting my VB6 project by itself never results in this. Looking at all these responses, the one common thread seems to be that VB6 is unable to access some resources when they are needed. None of the responses suggest it is a serious problem; in fact, it appears to be simply a minor 'hiccup' until such time as the resources are freed.