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I tried connecting the Raspberry Pi to my laptop. It says host not found with this error.

Asked by Madhumitha on 22 Mar 2015
Latest activity Commented on by Abdullah Alkurdi on 12 Jan 2018
Error using raspi (line 160) Cannot establish an SSH connection to the board with device address "raspberrypi-DXxpbHI8JG".
Caused by: Error using raspi (line 156) Error executing command: Unable to open connection: Host does not exist I did enable SSH on pi. How do I solve this?

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2 Answers

Answer by Murat Belge on 24 Mar 2015

Find out the IP address of your Raspberry Pi and try connecting using the IP address instead of the host name. First ping on the MATLAB command line:
>> ping <IP address of your Raspberry Pi>
And if ping is successful:
>> h = raspberrypi;
>> connect(h)

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>> connect(h) Warning: The connect method of the raspberrypi object will be removed in a future release. You do not need to call the connect method anymore. > In raspberrypi/connect (line 187)

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Answer by Abdullah Alkurdi on 12 Jan 2018

if true
>> raspi
### Updating Raspberry Pi I/O server...
### Connecting to board...
### Connected to raspberrypi...
### Creating server folder...
### Transferring source files...
### Building MATLAB I/O server...
Error using raspi.internal.updateServer (line 90)
Error executing command "make -C /opt/MATLAB/server_v17.1.1 -f Makefile". Details:
STDERR: In file included from /usr/include/string.h:630:0, from devices.c:4: devices.c:56:11: error: expected identifier or ‘(’ before ‘__extension__’ char strndup(const char *s, size_t n) ^ make: ** [obj/devices.o] Error 1
STDOUT: make: Entering directory '/opt/MATLAB/server_v17.1.1' [Compiling] auth.c gcc -c -O2 -Wall -I/opt/userland -I/opt/userland/host_applications/linux/libs/bcm_host/include -I/opt/userland/interface/vcos -I/opt/userland/interface/vcos/pthreads -I/opt/userland/interface/vmcs_host/linux -I/opt/userland/host_applications/linux/apps/raspicam -Winline -pipe -D_DEBUG -D_MATLABIO_ auth.c -o obj/auth.o [Compiling] server.c gcc -c -O2 -Wall -I/opt/userland -I/opt/userland/host_applications/linux/libs/bcm_host/include -I/opt/userland/interface/vcos -I/opt/userland/interface/vcos/pthreads -I/opt/userland/interface/vmcs_host/linux -I/opt/userland/host_applications/linux/apps/raspicam -Winline -pipe -D_DEBUG -D_MATLABIO_ server.c -o obj/server.o [Compiling] handler.c gcc -c -O2 -Wall -I/opt/userland -I/opt/userland/host_applications/linux/libs/bcm_host/include -I/opt/userland/interface/vcos -I/opt/userland/interface/vcos/pthreads -I/opt/userland/interface/vmcs_host/linux -I/opt/userland/host_applications/linux/apps/raspicam -Winline -pipe -D_DEBUG -D_MATLABIO_ handler.c -o obj/handler.o [Compiling] devices.c gcc -c -O2 -Wall -I/opt/userland -I/opt/userland/host_applications/linux/libs/bcm_host/include -I/opt/userland/interface/vcos -I/opt/userland/interface/vcos/pthreads -I/opt/userland/interface/vmcs_host/linux -I/opt/userland/host_applications/linux/apps/raspicam -Winline -pipe -D_DEBUG -D_MATLABIO_ devices.c -o obj/devices.o Makefile:46: recipe for target 'obj/devices.o' failed make: Leaving directory '/opt/MATLAB/server_v17.1.1'
Error in raspi.updateServer (line 1194) raspi.internal.updateServer(varargin{:});
Error in raspi/launchServer (line 794) raspi.updateServer(obj.DeviceAddress,...
Error in raspi (line 203) launchServer(obj);
end

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