![]() Xsecurity manpage or the X Security extension spec. If you want to know more about those things I suggest reading the ![]() (make screenshots, do keylogging and other nasty stuff) and it is even Other graphical (X11) client could sniff data from the remote machine This last option can open security problems. Some security settings you'll receive an error instead.īut if you use ssh -Y remotemachine the remote machine is treated as No document request found: Lighthouse was unable to identify any network. If problem persists with a particular URL, file a new issue here with the title 'Reproducible about:blank errors'. Solution: Restart Chrome and run Lighthouse again. Machine and receives the graphical output. If this happens consistently on a particular URL for you, please file a separate issue specifying the URL. So your local client sends a command to the remote If you use ssh -X remotemachine the remote machine is treated as an or just ForwardX11 in /etc/ssh/ssh_config, then run $ ssh -Y, to enable trusted X11 forwarding, don't know the exact cause but I'm guessing with -X some features expire after some time, probably to increase security. ![]() If you have this problem after some time when running with -X arg. Note: IP is the local workstation’s IP where you want the GUI If you still get the “cannot open display” error, set the DISPLAY You can open any GUI application which will open it without any issue. $ ssh -XĮnable trusted X11 forwarding, by using the -Y option, $ ssh -YĪfter opening ssh connection to the remote host as explained above, While doing ssh use the option -X to enable X11 forwarding. $ xhost +Īccess control disabled, clients can connect from any host You can allow clients to connect from any host. It actually appears that R does know where the shared library is, according to the messages I got from installation, but it just can't load it.From xhost+ : How to Fix “Cannot Open Display” Error While Launching GUI on Remote Server:Īnswer: You can fix the “cannot open display” error by following the xhost procedure mentioned in this article.Īllow clients to connect from any host using xhost+Įxecute the following command to disable the access control, by which I have tried to tell R where the library is by Sys.geteng(DYLD_LIBRARY_PATH = "/usr/local/lib"), but it didn't work. ):ĭlopen(/Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so, 6): Library not loaded: from: /Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so I tried the installation again, and got a different error: Error: package or namespace load failed for ‘nloptr’ in dyn.load(file, DLLpath = DLLpath. Update: I changed the default C and C++ compiler to clang4 downloaded from R project. Would this be why the library isn't loaded?īTW, I have installed Rcpp and updated it. # define NLOPT_DEPRECATED _attribute_((deprecated)) nlopt.h:320:43: note: expanded from macro 'NLOPT_DEPRECATED' Int maxeval, double maxtime) NLOPT_DEPRECATED nlopt.h:348:35: note: 'nlopt_minimize_constrained' has been explicitly marked *info = nlopt_minimize_constrained((nlopt_algorithm) *algorithm, f77funcs.h:57:14: warning: 'nlopt_minimize_constrained' is deprecated Can anyone help?Īlso, I got something like this when installing NLopt with CMake, and this happened to many different functions: In file included from f77api.c:103: Yes, I have the same problem as in Trouble installing nloptr package on R 3.3.0, but I didn't find a solution that works there since the person who asked that question resolved it himself and I don't know what he meant when he said "installed as a root". I already searched online for what to do, and did add the path where NLopt was installed to LD_LIBRARY_PATH in the /etc/ldpaths file, but I still get the same error. In /Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so Referenced from: /Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so Unable to load shared object '/Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so':ĭlopen(/Users/lambda/anaconda3/lib/R/library/nloptr/libs/nloptr.so, 6): Symbol not found: _nlopt_add_equality_mconstraint But I still can't install nloptr, and get this Error: package or namespace load failed for ‘nloptr’ in dyn.load(file, DLLpath = DLLpath. I have also installed Xcode command line tool. I have also installed NLopt (downloaded from the NLopt website, not the development version. I'm trying to install the package nloptr on Mac OS High Sierra in order to use many nice packages like lme4, and I'm using RStudio inside Anaconda, with R 3.4.2.
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