# A question for O2Physics

**URL:** <https://alice-talk.web.cern.ch/t/a-question-for-o2physics/1651>\
**Category:** O²\
**Tags:** build\
**Created:** [February 23, 2025, 4:30am UTC](https://alice-talk.web.cern.ch/t/a-question-for-o2physics/1651 "2025-02-23T04:30:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yosu](https://alice-talk.web.cern.ch/letter_avatar_proxy/v4/letter/y/9dc877/32.png) [@yosu](https://alice-talk.web.cern.ch/u/yosu)\
**Post date:** [February 23, 2025, 4:30am UTC](https://alice-talk.web.cern.ch/t/a-question-for-o2physics/1651/1 "2025-02-23T04:30:35Z")

</div>

[log.txt](https://alice-talk.web.cern.ch/uploads/short-url/rZdoEuhg6sbJ7hRYIusB8su0DJ6.txt) (35.1 KB)

77%] Building CXX object CMakeFiles/testRegexMatch.dir/test/testRegexMatch.cxx.o  
In file included from /Users/suyoupeng/alice/sw/SOURCES/Monitoring/v3.19.2/v3.19.2/examples/15-ODC.cxx:8:  
In file included from /Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/odc.grpc.pb.h:7:  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/odc.pb.h:17:2: error: This file was generated by an older version of protoc which is  
#error This file was generated by an older version of protoc which is  
^  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/odc.pb.h:18:2: error: incompatible with your Protocol Buffer headers. Please  
#error incompatible with your Protocol Buffer headers. Please  
^  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/odc.pb.h:19:2: error: regenerate this file with a newer version of protoc.  
#error regenerate this file with a newer version of protoc.  
^  
In file included from /Users/suyoupeng/alice/sw/SOURCES/Monitoring/v3.19.2/v3.19.2/examples/16-AliECS.cxx:8:  
In file included from /Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/o2control.grpc.pb.h:31:  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/o2control.pb.h:17:2: error: This file was generated by an older version of protoc which is  
#error This file was generated by an older version of protoc which is  
^  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/o2control.pb.h:18:2: error: incompatible with your Protocol Buffer headers. Please  
#error incompatible with your Protocol Buffer headers. Please  
^  
/Users/suyoupeng/alice/sw/BUILD/509e0eef6e88ac42ef6df1d607890701800fcc20/Monitoring/o2control.pb.h:19:2: error: regenerate this file with a newer version of protoc.  
#error regenerate this file with a newer version of protoc.