Support for QT DBUS and other packages

[rajtendulkar]

Hello,

I have a project with CMAKE, which has following line in the CMakeLists.txt:

find_package(Qt5 CONFIG REQUIRED Core DBus Sql Network HttpServer)

I have following two dependencies set in my .bb file:

DEPENDS += " qtbase qttools"                                                                                                                                                                    
RDEPENDS_${PN} += "qtwayland"

While building, it throws an error:

 -- Configuring done                                                                                                                                                                                
  CMake Error at CMakeLists.txt:17 (add_executable):                                                                                                                                                 
    Target "BuiltTarget" links to target "Qt5::Core" but the target was not                                                                                                                      
    found.  Perhaps a find_package() call is missing for an IMPORTED target, or                                                                                                                      
    an ALIAS target is missing?                                                                                                                                                                      
                                                                                                                                                                                                     
                                                                                                                                                                                                     
  CMake Error at CMakeLists.txt:17 (add_executable):                                                                                                                                                 
    Target "BuiltTarget" links to target "Qt5::DBus" but the target was not                                                                                                                      
    found.  Perhaps a find_package() call is missing for an IMPORTED target, or                                                                                                                      
    an ALIAS target is missing?                                                                                                                                                                      
                                                                                                                                                                                                     
                                                                                                                                                                                                     
  CMake Error at CMakeLists.txt:17 (add_executable):                                                                                                                                                 
    Target "BuiltTarget" links to target "Qt5::Sql" but the target was not                                                                                                                       
    found.  Perhaps a find_package() call is missing for an IMPORTED target, or                                                                                                                      
    an ALIAS target is missing?                                                                                                                                                                      
                                                                                                                                                                                                     
                                                                                                                                                                                                     
  CMake Error at CMakeLists.txt:17 (add_executable):                                                                                                                                                 
    Target "BuiltTarget" links to target "Qt5::Network" but the target was                                                                                                                       
    not found.  Perhaps a find_package() call is missing for an IMPORTED                                                                                                                             
    target, or an ALIAS target is missing?                                                                                                                                                           
                                                                                                                                                                                                     
                                                                                                                                                                                                     
  CMake Error at CMakeLists.txt:17 (add_executable):                                                                                                                                                 
    Target "BuiltTarget" links to target "Qt5::HttpServer" but the target                                                                                                                        
    was not found.  Perhaps a find_package() call is missing for an IMPORTED                                                                                                                         
    target, or an ALIAS target is missing?

How can I add these missing packages ?

Thank you!

[ToradexAI]

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

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---

Based on the context provided, it seems you are trying to build a project using CMake with Qt5 dependencies, and you are encountering errors related to missing Qt5 components such as Core, DBus, Sql, Network, and HttpServer. The context does not provide specific instructions for resolving these errors in a Yocto Project environment, but here are some general steps you can take:

1. Ensure All Required Qt5 Packages are Included:

   • You need to make sure that all the required Qt5 components are included in your Yocto build. The DEPENDS and RDEPENDS variables in your .bb file should include all necessary Qt5 modules. For example, you might need to add qtbase, qttools, qtdbus, qtsql, qtnetwork, and any other specific Qt5 modules you are using.

2. Check for Available Qt5 Packages:

   • Verify that the required Qt5 packages are available in your Yocto layer. You can check the meta-qt5 layer or any other layer you are using for the presence of these packages.

3. Modify the .bb File:

   • Update your .bb file to include the necessary Qt5 modules in the DEPENDS and RDEPENDS variables. For example:

     DEPENDS += "qtbase qttools qtdbus qtsql qtnetwork"
     RDEPENDS_${PN} += "qtwayland"
     

4. Verify CMake Configuration:

   • Ensure that your CMakeLists.txt is correctly configured to find the Qt5 packages. The find_package(Qt5 CONFIG REQUIRED ...) line should match the modules you have included in your Yocto build.

5. Rebuild the Image:

   • After making these changes, rebuild your Yocto image to ensure that all dependencies are correctly included.

If these steps do not resolve the issue, you may need to consult the specific documentation for the Yocto Project and the meta-qt5 layer to ensure that all necessary configurations are in place.

Please, also check if these links can help you solve your problem:

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[allan.tx]

Hi @rajtendulkar

@ToradexAI

Ensure All Required Qt5 Packages are Included:

• You need to make sure that all the required Qt5 components are included in your Yocto build. The DEPENDS and RDEPENDS variables in your .bb file should include all necessary Qt5 modules. For example, you might need to add qtbase, qttools, qtdbus, qtsql, qtnetwork, and any other specific Qt5 modules you are using.

As mentioned by @ToradexAI
You need to include all REQUIRED packages as dependencies of the project.

Do you have any further inquiries on this topic?