Problems with OpenCV

[dmitryponv]

Hello, I am following this tutorial for cross compiling OpenCV
https://visualgdb.com/tutorials/raspberry/opencv/build/

I am using Windows 10 and Visual Studio 2015

The output of CMake is below:

It fails on a Tar archive extracting

How can I fix this?

If I browse to E:/Projects/temp/OpenCV/opencv/.cache/ade/ and execute tar -xf b624b995ec9c439cbc2e9e6ee940d3a2-v0.1.1f.zip I get the same error

Where is this Tar command originating from? How can I change it? Is it possible to change to an updated version of Tar that wont have this problem?

Lastly, the tutorial may need to be updated to reflect this issue

I

Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH
Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH - Failed
Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE
Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE - Success
Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE
Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE - Failed
Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH
Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH - Success
Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS
Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS - Success
Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS
Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS - Success
ADE: Download: v0.1.1f.zip
CMake Error: Problem with archive_write_finish_entry(): Can't restore time
CMake Error: Problem extracting tar: E:/Projects/temp/OpenCV/opencv/.cache/ade/b624b995ec9c439cbc2e9e6ee940d3a2-v0.1.1f.zip
CMake Error at cmake/OpenCVDownload.cmake:240 (message):
ADE: Unpack failed: 1
Call Stack (most recent call first):
modules/gapi/cmake/DownloadADE.cmake:5 (ocv_download)
modules/gapi/cmake/init.cmake:19 (include)
cmake/OpenCVModule.cmake:312 (include)
cmake/OpenCVModule.cmake:375 (_add_modules_1)
modules/CMakeLists.txt:7 (ocv_glob_modules)

Configuring incomplete, errors occurred!
See also "E:/Projects/temp/OpenCV/opencv/VisualGDB/Debug/CMakeFiles/CMakeOutput.log".
See also "E:/Projects/temp/OpenCV/opencv/VisualGDB/Debug/CMakeFiles/CMakeError.log".
CMake Deprecation Warning:
The 'cmake-server(7)' is deprecated. Please port clients to use the
'cmake-file-api(7)' instead.

Exception reported by CMake server: Configuration failed.
wh1+x: Exception reported by CMake server: Configuration failed.
at wh1.c2[_InType,_OutType](_InType a)
at g61.x(String[] a)
at g61.l_2(Hello a)
at wh1.m1()

• This topic was modified 4 years, 6 months ago by support.

[support]

Hi,

This looks like an OpenCV issue and not something specific to VisualGDB, hence it is not covered by our support. Please consider asking on OpenCV forums for help for OpenCV-specific issues.

We will eventually update our OpenCV tutorial to reflect the latest version, however it has a relatively low priority, so we are not able to give any time estimates for it now.

[dmitryponv]

WEll right now your tutorial is not working because of this issue, I posed the bug on OpenCV github, I would recommend adding a workaround such as disabling the ADE module

[support]

Our tutorials demonstrate how to efficiently use various VisualGDB features using various popular frameworks and libraries as examples. They are intended to help our users find productive ways of using VisualGDB in large real-world scenarios. We usually update them when the related VisualGDB features are considerably redesigned or new functionality is introduced on our side.

The tutorials would normally work as long as you are using the same version of the framework as shown in the tutorial. If you decide to try out a newer version of the library shown in the tutorial, you may indeed need to make adjustments to accommodate the differences introduced in the new version.

[dmitryponv]

Hello,

I am following tutorial
https://visualgdb.com/tutorials/raspberry/opencv/

It compiles and links correctly, but never enters a breakpoint on the first line in main() function

The call stack shows the following which I pause debugger

> do_lookup_x() C++ (gdb)
_dl_lookup_symbol_x() C++ (gdb)
elf_machine_rel() C++ (gdb)
elf_dynamic_do_Rel() C++ (gdb)
_dl_relocate_object() C++ (gdb)
dl_main() C++ (gdb)
_dl_sysdep_start() C++ (gdb)
_dl_start_final() C++ (gdb)
_dl_start() C++ (gdb)
ld-linux-armhf.so.3!_start()

I can breakpoint without issues if I don’t use OpenCV

If I try to launch the application through SSH, it doesn’t display anything

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[support]

Please note that our technical support covers the issues with VisualGDB only. We are not able to help troubleshooting specific projects, or resolve any issues in external tools.

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