What does "error: cycle in targets detected: \obj\_cuda.obj" mean??

[gde23]

Hello,

I'm trying to compile an project with QtCreator (qmake) and Visualstudio 2017Compiler. I am getting following error, but have no idea what it means.

error: cycle in targets detected: \obj\_cuda.obj

Anybody an idea what the error message means?

[SGaist]

Hi,

Do you have any CUDA code in your project ?
Any file with cuda in its name ?

[mranger90]

It looks to me like an unresolved macro in either the .pro, .pri or .prf files used by the project.
I'm guessing somewhere there is a $$MACRO_VARIABLE_cuda.obj dependency that isn't being resolved.

[raator]

Accidentally got Error: cycle in targets detected: ui_.h after I add h-, cpp- and ui-files to project.
Sometime after using context menu "Add Existing Files...." of the project backslash-space-backslash instead single backslash appended after added filename in the pro-file.
Example:

FORMS += \
    gui/mainwindow.ui \ \
    gui/newwindow.ui

That '\ \' causes Error: cycle in targets detected.