Uninstall protobuf-compiler
To remove just protobuf-compiler package itself from Ubuntu

sudo apt-get remove protobuf-compiler
Uninstall protobuf-compiler and it’s dependent packages
To remove the protobuf-compiler package and any other dependant package which are no longer needed from Ubuntu.

sudo apt-get remove –auto-remove protobuf-compiler
Purging protobuf-compiler
If you also want to delete configuration and/or data files of protobuf-compiler from Ubuntu

sudo apt-get purge protobuf-compiler

To delete configuration and/or data files of protobuf-compiler and it’s dependencies from Ubuntu Trusty then execute:

sudo apt-get purge –auto-remove protobuf-compiler

Once uninstalled, installation for proto3 follow the steps as described below

curl -OL https://github.com/google/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip

unzip protoc-3.2.0-linux-x86_64.zip -d protoc3

sudo mv protoc3/bin/* /usr/local/bin/

sudo mv protoc3/include/* /usr/local/include/


To check where protbuf compiler is installed or the version of the protobuf compiler,

user@LT-201:~/Downloads$ which protoc
user@LT-201:~/Downloads$ protoc –version
libprotoc 3.2.0