Undefined Reference to google::protobuf

[tkn-tub]

Undefined Reference to google::protobuf

[mitsuosakamoto]

Hi,
I faced same issue on Ubuntu 18.04. However, I have not seen this on Ubuntu 16.04 so far.
Can some one confirm ns3-gym works only on Ubuntu 16.04?

[weiyuxingchen]

I have the same question

[pgawlowicz]

Hi,

I have just installed ns3-gym on fresh Ubuntu 18.04.
All the examples runs without any problems.

I have the following versions:

$ protoc --version
libprotoc 3.0.0

and

$ pip3 show protobuf
Name: protobuf
Version: 3.9.0
Summary: Protocol Buffers

Be aware that in Ubuntu 18.04 you do not execute those line from the installation description:

sudo add-apt-repository ppa:maarten-fonville/protobuf
sudo apt-get update

Best,
Piotr

[TrumanZhang]

I have the same question on Ubuntu 16.04.
I have tried to installed protocol buffer with version 3.1, 3.6 and 3.9, but the errors are the same.