?
Solved

COM error

Posted on 2001-06-26
8
Medium Priority
?
211 Views
Last Modified: 2010-04-06
Hi, we built a delphi COM components and I got this error on runtime:
"cannot debug project unless a host application is defined. Use the Run|Parameters..dialog box"

Thanks
0
Comment
Question by:mohbb22
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
8 Comments
 
LVL 13

Expert Comment

by:Epsylon
ID: 6227408
This is normal. You just can't run a COM object/dll.
0
 

Author Comment

by:mohbb22
ID: 6227528
can the error be because I checked the Include Type Library Box when creating the COM object?
0
 
LVL 13

Accepted Solution

by:
Epsylon earned 300 total points
ID: 6227560
No. Check your project directory. You will probably find a DLL there. This DLL is the result of the compilation of your project.

When you compile (F9) a 'normal' application, an EXE is created. When done Delphi automatically runs the EXE. This works fine. But when you compile (F9) a DLL, Delphi tries to run the DLL. That results in the "cannot debug project unless a host application is defined. Use the Run|Parameters..dialog box" message.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:mohbb22
ID: 6227663
I think you didn't understand me well...I built a COM Object and I used in in another application. (ie. I didn't compile the DLL itself). During compilation this application works fine but I RUn it I ge the error.

0
 

Author Comment

by:mohbb22
ID: 6227670
I think you didn't understand me well...I built a COM Object and I used in in another application. (ie. I didn't compile the DLL itself). During compilation this application works fine but I RUn it I ge the error.

0
 

Author Comment

by:mohbb22
ID: 6227677
I think you didn't understand me well...I built a COM Object and I used in in another application. (ie. I didn't compile the DLL itself). During compilation this application works fine but I RUn it I ge the error.

0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6227831
That message means that Delphi can't run the compiled application. Nothing more.

So what kind of project is it?
0
 

Author Comment

by:mohbb22
ID: 6231064
It's a COM project..we are trying to build a COM Component .
Right now we are facing another error of:
Project RSATesting.exe raised exception class EAccessViolation with message 'Access Violation at address 00447847' in module 'RSATesting.exe' . Write of address '0000000' . Process stoped. Use Step or Run to continue.

note: TRSATesting is the application using the COM we built.(the COM is an RSA algorithm program)
Note: also that we are not using any pointers.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Suggested Courses
Course of the Month14 days, 8 hours left to enroll

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question