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"C1083 Cannot open include file" when converting to 64 bit project
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Thomas Frink - Amerden AGVS
21
Reputation points
Sorry if this question is redundant, but have tried many suggestion. I have a solution with multiple C++ projects configured for 32 bit system. The project builds with no errors, but when I setup the projects for 64 bit system I get a hand full of custom header files that the compiler says "C1083 Cannot open include file: "name.h".
I have made sure that I have added the path to were the header file is located, but still get the errors. I am not sure if being a 64 bit target the system is looking in a different location than the original location when setup as a 32 bit system or I need to look at the header file and make changes due to being a 64 bit system now. This is a project that was created in vs 2015 by another person years ago. Any help would be appreciated.
Thanks Tom
Developer technologies | C++
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 12%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDL%3C/text%3E%3C/svg%3E)
David Lowndes 4,726 Reputation points2022-05-03T21:45:16.487+00:00 If you have that error, then you don't have the include path correct.
Without more information on where the header file is (and should be), it's hard to offer any concrete advice. -
Thomas Frink - Amerden AGVS 21 Reputation points
2022-05-03T22:10:43.887+00:00 Hi David,
The header file path is as follows: E:\toms_files\repos\PG\Software\Trace source\pag\project\source\include
The Additional include Paths are as follows:
The VC++ Directories are the following:
Thanks again for any possible help
Tom -
David Lowndes 4,726 Reputation points
2022-05-03T23:11:15.967+00:00 As you say your 32-bit x86 build works, all I can suggest is that you compare the include path settings you have for the x86 build with those of your x64 build.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 57.00000000000001%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMY%3C/text%3E%3C/svg%3E)
Minxin Yu 13,506 Reputation points Microsoft External Staff2022-05-04T01:12:19.9+00:00 Did the intellisense occur when you use #inlucde""? In addition, is this an active properties page?
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Thomas Frink - Amerden AGVS 21 Reputation points
2022-05-04T11:17:33.613+00:00 Yes 32 bit does compile with no issue. I will look at if the paths are the same as the 32 bit version.
Thanks
Tom -
Thomas Frink - Amerden AGVS 21 Reputation points
2022-05-04T11:19:14.707+00:00 intellisense comes up for the #Include, but not the header file. This is the active page.
Thank You
Tom -
Minxin Yu 13,506 Reputation points Microsoft External Staff
2022-05-06T09:23:27.603+00:00 Is your problem solved? Try to using absolute path first.
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Thomas Frink - Amerden AGVS 21 Reputation points
2022-05-06T12:42:49.373+00:00 i did add absolute path and still had the same issue. What I did do is move the header and .cpp files that were a issue into the same directory of the other files that were not a issue and that resolved those issues. I am not sure what is going on the direct path should have worked, but this only happened when changing to x64. i can compile with no issue as x86 target.
Thanks
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