can't find dll when debug/run in QtCreator

jronald

both methods don't work

projects -> Build & Run -> Run -> Run Environment -> append dll dir paths to variable "Path"
add dll dir paths to system environment "Path"

env

os: win10
kit: MSVC2017
Qt: 5.12.0
QtCreator: 4.8.0

BTW, if copy the dll to the dir where the executable is, it works.

jronald

solved
The first method works, my mistake to not include enough path, QtCreator ignores all os environment variable "Path".

BTW, it seems that dll can be specified in .pro file:
https://wiki.qt.io/How_to_link_to_a_dll

aha_1980

@jronald

QtCreator ignores all os environment variable "Path".

It does not - I use it this way (I have a directory c:\dlls). But you have to restart all programs after such a change in order to take effect.

jronald

@aha_1980 said in can't find dll when debug/run in QtCreator:

@jronald

QtCreator ignores all os environment variable "Path".

It does not - I use it this way (I have a directory c:\dlls). But you have to restart all programs after such a change in order to take effect.

I created a new project, projects -> Build & Run -> Run -> Run Environment -> Path includes all the paths in os env var Path, but for my old project is migrated from *nix os, and change os env var Path doesn't take effects. It seesm that QtCreator only find dlls in projects -> Build & Run -> Run -> Run Environment -> Path

aha_1980

@jronald Well, if you change the PATH there, the system PATH is overwritten. But that is to expect, isn't it?

jronald

@aha_1980 that's ok, it means when the project has been created, changing os env var Path will not take effect any more.

aha_1980

@jronald

No. Once you changed the PATH for a project in Creator, the systems PATH no longer applies to this project, i.e. any change to the systems PATH have no effect for that project.

jronald

@aha_1980 said in can't find dll when debug/run in QtCreator:

@jronald

No. Once you changed the PATH for a project in Creator, the systems PATH no longer applies to this project, i.e. any change to the systems PATH have no effect for that project.

ok, sophisticated.