Building trouble : error LNK1104: cannot open file

Building trouble : error LNK1104: cannot open file

• cues7a

  What version of visual sutdio you are using

  Thanks,

  Ayman Shoukry

  VC++ Team

  
  
  

• Ankini

  It looks to me like you're creating a DLL called twaintest in the same folder as the library, also called twaintest. When the DLL gets linked, the linker creates an import library for it, called twaintest.lib. And that will destroy your library since it has the same name.
  
  Try rebuilding your library and naming the DLL something else.
  
  
  

• WRuschhaupt

  Thanks for help but we probably using differrent develeppement environment, all that i had doing : "Right-click the project that generates the "real" twaintest.lib and choose Properties " is "General", "Inputs" and "Outputs" Menus !!! and none of them have "Configuration Propriety Menu" !!!

  Today is my last day in this job so think to both of you again, but it will be nice to understand what is wrong.

  
  

• jsedlak

  Doesn't work (i gave to the output file another name but created it in the same directory than the library, i called it "Debug/visioneer.dll" ).

  The amazing thing is that when i go to "Project\Settings\Links" and put in the field "Object\Library Modules" the name of the library (with the full path or relative path) i have the error :

  "LNK1104: cannot open file "Debug/twaintest.lib"

  and no library is there but if i don't mention it (i mean if i leave the filed "Object\Library Modules" empty), i have the other error mentionned before in my thread and in the "Degug" directory i have the "twaintest.lib".

  Thanks a lot for joyning to help

  
  

• Mitesh Shah923

  if i understood what you mean, i should put le "twaintest.lib" file not under DEBUG directory but some where else, but this file is generated there automatically, i don't see where i did specify the DEBUG directory !!! that is the "real" twaintest.lib file you're talking about right .
  

• DuncanP

  VC++ 6 !!

  
  

• grouper

  First of all think you to much for your help but i could not do what you asked to cause i did not understand where to add the path and how to add the lib to linking command.

  I also checked the link you gave me but could not rich the "Property Pages dialog box" to modify the "Additionnal Dependencies" parameter.

  All i did is that i went again on the "Project\Setting" Menu and on the window i had as result i went on the "link" Menu and over "Category:output" and than added the library name in the "Object/Library Modules" and the path on which the file could be found in the field "Additional Library Path".

  I think i'll stay a littele bite late at work so if it is possible it will be kind from you to help me today can also rich me by email on mehdi_mejri@yahoo.com

  once again thinks a lot

  
  

• HellsChicken

  This is what I usually do; I create both a debug and a release version of the library and put the .libs in the same folder as the project. That prevents linking problems and, in your case, avoids overwriting files.
  
  Right-click the project that generates the "real" twaintest.lib and choose Properties. Select Configuration properties, Librarian, General. Change "Output File" to "$(ProjectDir)\twaind.lib. Change configuration to "Release" (upper left combobox, click Yes) and change "Output File" to "$(ProjectDir)\twainr.lib. Build both the Debug and Release configurations. You'll now have two .lib files in your project folder, twaind.lib, suitable for use in other projects in their Debug build and twainr.lib, suitable for Release builds.
  
  Now open the project properties for your DLL. Select Linker, Input and put twaind.lib in the "Additional depencies" box. Switch to the Release configuration and put twainr.lib in the box. Build the DLL. If you still get LNK1104, put the full path to the twaind.lib/twainr.lib in the box.
  
  
  

• Doraemon_1

  Where is twaintest.lib located on your machine

  Thanks,

  Ayman Shoukry

  VC++ Team

  
  
  

• Ned Rise

  You're still getting your twaintest.lib file overwritten by the DLL import library. Try to stay out of trouble and put your "real" twaintest.lib in another folder.
  
  
  

• WayneSpangler

  the "twaintest.lib" is located on "C:\dll3\VisioneerDll\twaintest\Debug" and when i mention it in the "object/Library Modules" i give the whole path of the file.

  I tried building ommiting to specify this file and i saw that it is belt in that directory, so this file is created but when i specify it in the "object/Library Modules" field it gives me that reading error, that it can not open it.

  LINK : fatal error LNK1104: cannot open file "Debug/twaintest.lib"

  
  

• ctree555

  What you need to do is to add C:\dll3\VisioneerDll\twaintest\Debug to the additional dependency and then just add the lib to your linking command.

  http://msdn2.microsoft.com/en-us/library/ba1z7822.aspx contains more info.

  Thanks,

  Ayman Shoukry

  VC++ Team

  
  
  
• Building trouble : error LNK1104: cannot open file