fatal error C1001: INTERNAL COMPILER ERROR

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Hi Friends.,

The following error is being displayed when ever I compile the C++ 6.0 project on VS C++ 6.0 IDE:

fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'msc1.cpp', line 1786)
Please choose the Technical Support command on the Visual C++
Help menu, or open the Technical Support help file for more information

How to fix this issue?

Posted 10-Sep-15 3:24am

willington.d

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Philippe Mori 10-Sep-15 12:32pm

And by the way, id you remember changes that were made before the problem occurs, it would be much easier to fix. This is one reason that you should put your source code in a version control system.

chandanadhikari 10-Sep-15 14:25pm

hi,
if this is work related then please ignore this comment , but if you are trying to learn C++ using VC++ 6.0 IDE, then perhaps it would be more helpful to use a more recent IDE. You will get better documentation and latest C++ features.
if you want a Microsoft IDE then there are community editions which is free full featured IDE:
https://www.visualstudio.com/products/visual-studio-community-vs
(this will be a big download maybe upwards of 4 GB)

otherwise there are other free IDEs which are useful and small in download size :
http://codelite.org/

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OriginalGriff · Answer 1 · 2015-09-10T03:35:00

Solution 1

Read the error message:

Please choose the Technical Support command on the Visual C++ 
Help menu, or open the Technical Support help file for more information

Do that, and see what it says. We can;t help you with this based on that little info: we can't see your screen, access your HDD, or read your mind.

Posted 10-Sep-15 3:35am

OriginalGriff

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willington.d 10-Sep-15 9:40am

Hi OriginalGriff., I could open the Help Menu or Technical Help File if I know the location. I can not post the full code here as it is very huge.

Pleas note that this little info was only displayed in VS C++ 6.0 IDE's Build tab.

OriginalGriff 10-Sep-15 10:00am

Look at the IDE menu bar: one of them will be "Help".

Sounds like a place to start!
Sorry, but we can't help you with this - we can't even begin to replicate the problem. C++ 6.0 was a looooong time ago - 1998 - so even if we had a copy of the original CD to hand (which I for one don't) we still wouldn't have any access to your code to compile it and see what is happening.

So start with the help menu, and if you don't get anywhere there, make a backup and start deleting huge amounts of stuff until the problem goes away. Add back a bit, see it comes back, and try narrowing it down like that.
Sorry, but we can't do any of that for you!

Philippe Mori 10-Sep-15 12:27pm

Exactly, comment out code using either comment code (using either a specific pattern like /*## or an #ifdef internal_error) for the file that fails and when you find the code that cause rewrite that code another way.

Before doing that, you should try to clean your solution and restart the computer. And by the way ensure that your computer is up to date.

Dave Kreskowiak 10-Sep-15 10:56am

Don't get your hopes up. All support for Visual C++ 6.0 ended 10 years ago!

About the best solution you have is to make sure you're running the last service pack for Visual Studio 6.0, which can be found here[^].

willington.d 11-Sep-15 3:35am

Hi Dave Kreskowiak.,

Fixed after I installed Visual Studio 6.0. Thanks. Please post this as answer.