On Thu, Apr 26, 2018 at 6:22 PM elmer <[email protected]> wrote: > Hi there, > > When I want use the gRPC and make the C++ files, I got the following error: > > error: This file was generated by an older version of protoc which is > error: incompatible with your Protocol Buffer headers. Please > error: regenerate this file with a newer version of protoc. > > It seems that I have installed different versions in my system (macOS). I > checked my protoc version using the command "protoc --version", I got > > libprotoc 3.2.0 > > Then, I try to upgrade my protoc using the "brew upgrade protobuf", I got > > protobuf 3.5.1_1 already installed > > So I also noticed the version 3.5.1 protoc is in > /usr/local/opt/protobuf/share/doc/protobuf > . And in /usr/local/opt there is a protobuf folder and a [email protected] > folder. So I think the error I got when I make the C++ file is caused > because the 3.5.1 version of protoc is needed but the 3.2.0 version is used. > > Am I right? If yes, how can I switch from 3.2.0 to the 3.5.1 version? > I suggest you uninstall the versions you don't need and only keep one version at a time. That would make things easier.
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