Uninstalling Proto3 and Installing Proto2

[Oi Lee]

Hello, so I am pretty new to this and was trying to figure out what I did wrong. So I started out using Proto3 and now decided to use Proto2 (since Proto3 is still in Beta). I installed Proto2 (http://stackoverflow.com/questions/29797763/how-do-i-install-protobuf-2-5-on-arch-linux-for-compiling-hadoop-2-6-0-using-mav) and noticed that if I check for version it said Proto3. So I followed the following post to remove Proto3: http://stackoverflow.com/questions/35896335/how-can-i-uninstall-protobuf-3-0-0. But now it doesn't recognize the protoc command, ie: protoc --version. I tried reinstalling proto2, but no luck. Any suggestions will be greatly appreciated.

VM:

OS: CentOS Linux 7 

Kernel: Linux 3.10.0-327.18.2.el7.x86_64

Architecture: x86-64

Thanks!

[Feng Xiao]

On Fri, Jun 17, 2016 at 11:28 AM, Oi Lee <lee...@gmail.com> wrote:

Hello, so I am pretty new to this and was trying to figure out what I did wrong. So I started out using Proto3 and now decided to use Proto2 (since Proto3 is still in Beta). I installed Proto2 (http://stackoverflow.com/questions/29797763/how-do-i-install-protobuf-2-5-on-arch-linux-for-compiling-hadoop-2-6-0-using-mav) and noticed that if I check for version it said Proto3. So I followed the following post to remove Proto3: http://stackoverflow.com/questions/35896335/how-can-i-uninstall-protobuf-3-0-0. But now it doesn't recognize the protoc command, ie: protoc --version. I tried reinstalling proto2, but no luck.

What problems did you get when you tried to reinstalling proto2? From what you saying, it sounds like both proto2 and proto3 are completely removed from your system and reinstalling proto2 should work fine.

 

Any suggestions will be greatly appreciated.

VM:

OS: CentOS Linux 7 

Kernel: Linux 3.10.0-327.18.2.el7.x86_64

Architecture: x86-64

Thanks!

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[Oi Lee]

[oi.lee@localhost protobuf-2.6.1]$ protoc --version

bash: /usr/local/bin/protoc: No such file or directory

I tried reinstall via the first link above but the above command still does not work.

[Feng Xiao]

Try /usr/bin/protoc?

It might has something to do with command cache. See: http://unix.stackexchange.com/questions/5609/how-do-i-clear-bashs-cache-of-paths-to-executables

--

[Oi Lee]

Did I mention I'm still new to Linux? LOL 

It worked! Thanks a bunch! ^_^