I have an eclipse c++ project with two shared libraries. I've included the names of the libraries and their paths under the project settings. The project builds fine, but I cannot run it:
error while loading shared libraries: libxxx.so.0.3.1: cannot open shared object file: No such file or directory
Do I have to set the ld_library_path variable to run the project in eclipse?
Do I have to set the ld_library_path variable if i want to run the application in the console?
Is there a method, i can use to avoid having to set the ld_library_path?
Related
I am using Eclipse Eclipse 2022-09 with CDT 10.7.1202208222120 on Fedora 37.
I am working on a simple C++ testapplication (libTest.cpp) which should use code from 2 shared librarys (libBasexCpp and libBasexSocket).
All 3 sources compile without errors and building libTest also completes without error. In the Properties -> Settings -> Build Artifact dialog for libBasexCpp and libBasexSocket, I have chosen not to use a Output Prefix (prefix is ""). In the debug directorys, libBasexCpp.so and libBasexSocket.so are created.
When I try to run the testapplication as a local C/C++ application, I first have to choose which local application should be run , liblibTest or libTest.
Executing either one of the 2 results in a message, saying that liblibBasexCpp can not be found.
I have added Library Paths (DYLD_LIBRARY_PATH = ${workspace_loc:/libBasexCpp/Debug};${workspace_loc:/libBasexSocket/Debug} as Environmentvariable to the run configuration.
How can I configure Eclipse in such way that it loads the shared library's?
Basically, to configure the shared librarys and the test application, I followed the instructions as I found on Shared libraries with Eclipse CDT and cygwin on Windows.
What was missing therein was the instruction to add in the Run configuration the variable LD_LIBRARY_PATH containing the paths to both libraries.
After adding this variable, the test application worked.
I'm new to Linux environment. I'm trying to run my C++ files on Codelite and its giving me error which just won't go.
I have a DLL folder of my Dahua SDK. It contains shared .so libraries. I'm getting this error since last 2 days and can't run my project!
./Dahuatest1: error while loading shared libraries: libdhnetsdk.so: cannot open shared object file: No such file or directory
I already tried:
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/tarak/Documents/General_NetSDK_Eng_Linux64_IS_V3.48.1.R.170623/NetSDK_Eng_Bin/Demo_Src/DLL
export LD_LIBRARY_PATH
ldconfig
which also includes my DLL folder. But still get the same error.
I also tried to change my path to my folder in ~/.bashrc:
export $PATH=$PATH:/home/tarak/Documents/General_NetSDK_Eng_Linux64_IS_V3.48.1.R.170623/NetSDK_Eng_Bin/Demo_Src/DLL
this too failed!
What should I do to get the output??
In codelite I've set Linker search path as my DLL folder.
And compiler 'Include Path' also as my DLL folder
Here's a screenshot of my folder:
Project file
DLL folder
Try
export LD_LIBRARY_PATH=/home/tarak/Documents/General_NetSDK_Eng_Linux64_IS_V3.48.1.R.170623/NetSDK_Eng_Bin/Demo_Src/DLL && ./Dahuatest1
As well, try moving (or better symlinking) you *.so files to a directory where the system automatically looks shared libraries for (e.g. /usr/local/lib)
I have two projects in eclipse CDT on my Mac. One is a shared library the other is a C++ project that uses the shared library. I am trying to use the shared library, and have gotten it to compile but it will not run. When i try to run it i get a image not found error.
I haven't been able to figure out how to add my library to the path directory or ld_library_path or what every other path I need to add it to so that it can be linked to at run time. I already added it as a reference in my other project which has correctly setup run time linking for me but i need help setting up run time linking.
When I try to run a program which uses another shared-link library, also I want to run the program inside the eclipse. Here is what I did:
Insert a variable environment LD_LIBRARY_PATH="where you shared lib file is" in "Run/Debug Settings" and problem solved.
I had the some problem, the solution:
Insert a variable environment DYLD_LIBRARY_PATH = ${workspace_loc:/sharedlib/Debug} into run configuration.
I have a C++ project I am importing and it is using activemq libraries. After I import the project, I set the LD_LIBRARY_PATH variable under environment to point to
/usr/local/include/activemq-cpp-3.4.2
This allows the project to see all the libraries for activemq and I can see it show up in my includdes folder in the project explorer. When I go to Build Project, I am getting tons of errors to references of includes/objects that are inside /usr/local/include/activemq-cpp-3.4.2. The interesting thing is that the binary is still being produced, yet there are about 80 errors due to the library files not being found. How is the binary being made? Also, what must I do to the LD_LIBRARY_PATH environment variable so the project is properly including those files?
I have tried launching eclipse with the
./eclipse -clean
But that didn't seem to help. Any ideas are welcome, and thank you in advance!
EDIT:
I am using Eclipse Juno with C++ verseion 4.1.2 on Redhat 4.X
LD_LIBRARY_PATH isn't used for locating include directories. It's used to inform the system of a list of directories to search for shared libraries: compiled support libraries, not e.g. SDKs for Eclipse.
You should use the project's properties to add to the places that are searched for includes: C++ General->Paths and Symbols->Includes
Also use the properties - not LD_LIBRARY_PATH - if you do need to link against other libraries: : C++ General->Paths and Symbols->Library Paths
Finding header files is not the purpose of LD_LIBRARY_PATH. That environment variable is to tell the OS where to start looking for shared libraries — *.so files. The OS looks for those when preparing the execute your program. The compiler uses the include path to search for headers when it encounters an #include statement in your source code.
Don't modify LD_LIBRARY_PATH to affect compilation of your program.
Eclipse lets you set your include path in your project options.
I pulled out an application that I wrote in C++ using the sfml library, but I'm having trouble setting up the library in Eclipse. I specified the include path, the lib path and included all the necessary .so libraries to link to. the application compiles fine but it complains at runtime about missing libraries. Why is this happening? Didn't I include the path to the libraries in the project settings already? I have even tried to place all the .so's in the executable directory with no luck.
There is only the name of the shared lib stored in the executable. At program startup the dynamic linker then searches for the specified libs in its search paths. You can add/specify search paths by placing them colon separated in the environment variable LD_LIBRARY_PATH or by specifying them in /etc/ld.so.conf (at least if you use some unix based OS). On windows the whole PATH environment variable is used when searching for dynamic-link libraries (DLL).
To see the paths of shared libraries used by a given application run ldd applicationPath.