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Delphi Access Violation At Address 00000

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To make things worse: the very same application can display any of the above behavior, depending on external conditions, such as OS and Delphi's version, user actions before error and so Browse other questions tagged delphi or ask your own question. You'd be surprised how innocent looking code can be a hotbed of potential crashes, access violations, race conditions, freezes and deadlocks. Access Violation at address 00000000 2. Source

It hangs in several places... Read of address 00000000" >> > The next error message include something about a Form creation error. >> > The is a strange situation because my app was modificated and >> You will have to use the debugger to narrow down the cause of your problem further, but the above possiblities should help you solve the riddle. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.

Delphi Access Violation At Address 00000

When I moved the declaration to the uses clause in the interface, the problem went away. -- James Quote"Cristian Zujew" wrote in message news:[email protected] Is it a row in a database? Str.Free; // We destroyed the object, but the Str still points to old location ... We already talked about such situations before.

asked 3 years ago viewed 7721 times active 3 years ago Linked -1 Why small changes make “Access violation at address xxx” error on this delphi code? What you need to do is rebuild your project with one of these two tools, send it to the client who has the computer that causes things to misbehave, and tell more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Madexcept Because of new General Note by Asus: Now I will have to do that TWICE and then Clear the CMOS by sticking a small stick through hole in the back plate.

The most common mistake is wrong calling convention. Delphi Find Error This method is described in your manual. Rick P. (Asus Shill) Reports: · Posted 4 years ago Top wilson382 Posts: 39 This post has been reported. http://stackoverflow.com/questions/2237028/how-to-track-down-access-violation-at-address-00000000 If you don't know the answer, please feel no obligation to submit an answer. –David Heffernan Nov 19 '13 at 10:48 I had some strange random error using "sql.text

You can also double-click on line to go to a particular location. Access Violation At Address 00000000. Read Of Address 00000000 In Toad When such things happens - the CPU raises an exception of class EAccessViolation. Use a debugger, like Delphi. Missing of proper synchronization, when working with threads.

Delphi Find Error

How do I select an extra row for each row in the result set in SQL? http://support.embarcadero.com/article/35786 Ctl+Alt+Del Open your Task Manager Note down the name of the program that's requesting access (you may see it in your application's tab) Click on your Processes tab Scroll through until Delphi Access Violation At Address 00000 Code Coverage Calculation - Seems to be including code in test methods 3% personal loan online. How To Fix Access Violation At Address But what if the error message says Access violation at address 00000000.

asked 5 years ago viewed 27592 times active 10 months ago Linked 0 Access violation, Delphi 2005 TADOQuery 3 Development of MySQL.pas wrapper for Delphi 1 Delphi : Error 'Access violation this contact form If you are getting EAccessViolation while running under debugger: Then you should just click "Break" (it is called "Ok" in older Delphi's versions) and the debugger will point you to source Sometimes programmer uses CreateThread instead of BeginThread or TThread and forgets about changing IsMultiThreaded. 6. You've given me a good direction on how to troubleshoot further! –AU_Outpost Apr 3 '13 at 21:41 2 As a comparison, the software our company works with has existed since How To Fix Access Violation At Address Delphi

How smart is the original Ridley Scott Xenomorph really? What are some of the serious consequences that one can suffer if he omits part of his academic record on his application for admission? more common way to say "act upon word or a promise" Need a better layout, so that blank space can be utilized A published paper stole my unpublished results from a have a peek here The access violation only shows up when exporting, and this never happens with imported files.

Read of address 00000000" The next error message include something about a Form creation error. Access Violation At Address Windows 7 Quote>I had a situation like this once that was caused by my declaring a form in >the uses clause in the implemenatation section. The FastMM memory manager has such options.

How have you found, that error is in SetLength(MATRIX, MINS-1 );????

The de{*word*81} is setting to stop on exception but the exception occurs just when the dpr is opening. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Files can also be imported into the Treeview (saving the contents of the text files into the node.data). Access Violation At Address In Module Write Of Address Centering equations under align Victorian Ship Weighing Need a better layout, so that blank space can be utilized Why call it a "major" revision if the suggested changes are seemingly minor?

Gerrit Beuze ModelMaker Tools Delphi Developer Fri, 19 Jun 1992 00:00:00 GMT Re:Access violation at address 00000000 Jim Delphi Developer Wed, 30 Jan 2008 01:52:12 GMT Re:Access violation at address 00000000 Added an Init section to a module and it is addressing a component on a from that has not been generated yet - - - ugh. Jim P. http://technologyprometheus.com/access-violation/access-violation-at-address-delphi-7.html I wasn't sure how to debug it from here as the code is ancient (15+ years with 0 documentation).

For example: procedure TForm13.Button1Click(Sender: TObject); var S: array [0..1] of Integer; I: Integer; begin I := 2; // suppose, that I is somehow calculated in you application // and suppose that That usually means you have a pointer or object reference pointing to the wrong memory. The all-zero address indicates you've tried to use a nil pointer in application foo.exe. Delphi 2007 IDE when closing Access violation at address 00000000.

I don't understand. But if your app causes the problem when runnign stand alone too, it seems there's a problem in some initialization section (anything that runs before the breakpoint hits the first line If you'd gotten a number at one or the other extreme of the address space for this value, that would indicate that you tried to jump to an invalid code address; With full debugmode enabled, it should give you some clues of whats wrong.

Note, that for variables of dynamic types (such as dynamic arrays, strings, objects or components) - though the variable itself is stored in global area or stack, but its data is Read of address 00000388." So your problem results in a AV at addresss 00405772 in module 'Project1.exe'. Then I use the EZ Flash method in the UEFI Bios.