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I have Ubuntu 16.04LTS and contiki-ng installed. Trying to start a multicast root (provided by the cooja multicast example) in a terminal i faced the error "Failed to open tun device". The same error appeared with sink node but it solved using sudo. With root node exists in any case. I read somewhere that I need to replace the native coap package with libcoap. So I tried (as described in libcoap.net/install.html)

sudo git git@github.com:obgm/libcoap.git
./autogen.sh
./configure
make

but then I received the error "make : No targets determined and no makefile found". Can somebody help me please ?

jim
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  • "git: 'git@github.com:obgm/libcoap.git'" reports "is no git-command". Check, if you cloned the repo and checked out the master by "ls". That should list some files and folders, e.g. "src" or "include". – Achim Kraus May 06 '20 at 19:50

1 Answers1

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git, ./autogen.sh and ./configure worked ok. The error throwed when I run "make" command.

Meanwhile a friend showed me the problem was the lack of the --disable-dtls parameter in ./configure. Now its ok thanks

JimPapas
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