I have just started using hiredis as a c client to connect to redis for my c project in visual studio. Therefore, please pardon me if I seem to be unknowledgeable.
Basically, the problem I have is I download the hiredis source from here: https://github.com/redis/hiredis/releases and tried to compile and run with some of the examples here: https://redislabs.com/lp/hiredis/. However it seems like there is an error saying some methods example sdsempty() in the 'hiredis.c' file is not defined. Am I missing a step of making files or installing the hiredis library? I am very clueless right now and will appreciate any help I can get. Thanks in advance.
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I’m a newbie to using SDKs, using Jupiter Notebooks to play around.
I have pip installed xero-python per Xero’s github page below:
https://github.com/XeroAPI/xero-python
I saved the repository to my hard drive and opened a Jupiter Notebook within repository master folder and copied the code from the configuration section but get an error “no module called logging.settings found” (referring to the parameter passed into dictConfig)
Could someone help me get this up and running, I’m sure there will be a cascade of other errors after sorting this one.
Also, I’d be really grateful if someone could point me to some resources on how to work with SDKs, I’m used to just pip installing a library and just getting familiar with the objects/methods in that library.
Thank you!!!
I have the following problem:
I am on Ubuntu 20.04 and I am trying to set up GNUstep which is required for certain source binaries I want to build
(for the sake of completion, the program I want to build is called Advanced Rendering Toollḱit, information can be found here: https://cgg.mff.cuni.cz/ART/).
When building with the clang-9 compiler, after invoking the make command, I receive this error message:
fatal error: 'objc/objc.h' file not found
I should mention that I am still fairly new to Linux in general. What I did was installing GNUstep via
sudo apt-get install gnustep gnustep-devel
as advised on the website (http://wiki.gnustep.org/index.php/GNUstep_under_Ubuntu_Linux). It resulted in receiving the mentioned error.
/usr/include/GNUstep/Foundation/Foundation.h:31:9: fatal error: 'objc/objc.h' file not found
The next thing I tried was to download the provided configuration scripts from the same webpage and execute them. When I did, I received the following feedback:
checking whether objc really works... no. I don't seem to be able to use your Objective-C compiler to produce
working binaries! Please check your Objective-C compiler installation.
If you are using gcc-3.x make sure that your compiler's libgcc_s and libobjc
can be found by the dynamic linker - usually that requires you to play
with LD_LIBRARY_PATH or /etc/ld.so.conf.
Please refer to your compiler installation instructions for more help.
configure: error: The Objective-C compiler does not work or is not installed properly.
Maybe I am getting something wrong, however, my whole intention of installing GNUstep is to make Objective-C programming possible on a non-Apple machine. Therefore I do not understand why it is complaining about a non-working Objective-C compiler (by the way, I end up with the same result when using gcc and g++ as compilers).
I did do some research and I came across some StackOverflow posts, suggesting me to install libobjc2, but I suspect this to be depreciated with Ubuntu 20.04.
I honestly don't know what's wrong and I highly appreciate a little push in the right direction! Many thanks in advance for helping me!
Although I cannot tell what exactly the bug was in my case, I got some external help and together we came up with a solution that worked for me.
For debugging purposes, we created a test user account in my Ubuntu environment and repeated the whole process. It worked flawlessly.
We concluded that something must have been wrong locally with regard to my user account. I am sure there was something wrong with my environment variables, although I failed to clearly identify the bug (I am a Linux beginner). I chose the easy way out, backed up important files, deleted and re-created my root user account and then it worked. I hope, this may help any other who has the same problem.
#skaak, thank you for your help and suggestions!
As people are pointing, if you want to use clang to compile objective C programs in Ubuntu you have to install libobjc2 (mainstream project here) but it's currently not packaged in Ubuntu. It's possible that there was a package with the same or similar name, as you found out, but that was a different thing. This manual installation worked for me:
wget https://github.com/gnustep/libobjc2/archive/v2.0.tar.gz
tar xvzf v2.0.tar.gz
cd libobjc2-2.0
mkdir build
cd build
export CC=`which clang`
export CXX=`which clang++`
cmake ..
make
sudo make install
I've got a strange question that I can't seem to find any answers for. I'm building a quite simple application for sending/receving data from/to a PCB, and the application itself builds, but when I exited Atmel Studio (Version 7.0) and reopened the project, the library files no longer built. At least that's what I think happened. I didn't change any code between building the project before and after restart of the program. It has happened before, and that time I solved it by creating the project from scratch, but I'd really like that not to be the only solution. I've also tried restarting the program again, as well as the computer. I also removed and re-added the library.
Has anyone encountered the same issue? If so, any help in the right direction would be greatly appreciated. Information on my system and error messages below:
I'm building for the ATSAMV71N21B board, with Atmel Studio 7.0. I've imported the lwip library trough the ASF wizard, and these files built before the program restart.
These are the files that won't build:
The 122 build errors mainly consists of "expected expression before 'struct'" and undeclared functions and variables, even though these clearly are defined in the various files in the library.
It ended up being because of my NO_SYS setting being 1. When I switched it to 0, everything built, (except for sys_check_timeouts(), but I think I'll find another answer for this). Keeping this here for reference if anyone needs it one day.
I recently have to use Jgraph to build a topu of our IoT net, however, I have no idea of how to run the Jgraph example.Any one can help me? The link of Jgraph in github is here:https://github.com/jgraph/jgraphx.Thank you very much.
A bit late but if you're still interested... once you have added the project in your ide, make sure the src and examples packages are both marked as source folders and run the GraphEditor class in (jgraphx/examples/com/mxgraph/examples/swing/GraphEditor.java)
I have build cocoa application in 10.4.4 using (mac10.3.9sdk xcode version:2.2.1,universal binary), but when im trying to invoke the application in 10.3.9 the application is not getting invoked.
Can you please tell me what would be the probable mistakes or reasons of its not getting invoked???or How can i trouble shoot the issue?
which version of xcode should i use in 10.3.9 so that i can debug the code, can someone please provide the corresponding link?
The runtime failure could be for any number of reasons: missing libraries or frameworks, compiled with the wrong settings etc.
Probably your first port of call should be console.app if you are trying to run this on another machine that does not have the development tools installed. It will probably give you some clues as to why the application isn't starting up.