Qt Creator error : --proto_path

theKid · wrote on 1 Dec 2018, 19:09

Error Message I received

File does not reside within any path specified using --proto_path (or -I). You must specify a --proto_path which encompasses this file. Note that the proto_path must be an exact prefix of the .proto file names -- protoc is too dumb to figure out when two paths (e.g. absolute and relative) are equivalent (it's harder than you think).

SGaist · wrote on 1 Dec 2018, 20:05

Hi,

You have to provide more context.

theKid · 2 Dec 2018, 18:16

Trying to make a project with the Mingw32 toolkit and when I tried to build it with Qtcreator I get the following error message

../../ostinato/common/protocol.proto: File does not reside within any path specified using --proto_path (or -I).  You must specify a --proto_path which encompasses this file.  Note that the proto_path must be an exact prefix of the .proto file names -- protoc is too dumb to figure out when two paths (e.g. absolute and relative) are equivalent (it's harder than you think).

aha_1980 · T theKid 2 Dec 2018, 18:07

@theKid Please provide a full build log when you do a rebuild (as text please!). Thanks

theKid · wrote on 2 Dec 2018, 18:37

I'm not sure as to what it needs or to edit. This is an OsP and the original developer doesn't use Qtcreator so they are unfamiliar with how to solve it

SGaist · wrote on 2 Dec 2018, 21:02

Again: please provide more context.

What project is that ?
What OS are you working on ?
What version of Qt are you using ?
What version of Qt Creator are you using ?
What version of protobuf are you using ?
etc.

mranger90 · wrote on 3 Dec 2018, 22:42

It sounds to me like you are trying to compile a Google Protocol Buffer file.
This can be done using the Qt pro file with an extra compiler options.
For example in your project file add something like this:

PROTOC_DIR = "C:\protoc-3.6.1-win32\bin"
PROTOS_DIR = $$PWD
PROTOS = AxisMessage.proto

message ("Protobuf Compiler for $${PROTOS}")
gprotoc.name = protobuf_headers
gprotoc.target = $$PWD/AxisMessage.pb.cc
gprotoc.depends = FORCE
gprotoc.variable_out = SOURCES
gprotoc.commands = $$PROTOC_DIR\protoc --cpp_out=$$PWD --proto_path=$$PWD $$PROTOS
gprotoc.CONFIG += no_link target_predeps

PRE_TARGETDEPS = $$PWD/AxisMessage.pb.cc
QMAKE_EXTRA_TARGETS += gprotoc

If this is a CMAKE project, then I'm not sure what you do.

theKid · wrote on 4 Dec 2018, 01:39

Project: Ostinato
OS: Windows 10
Qt: 5.11.2 MinGW 32
Qt Creator: 4.7.2
protobuf: 3.6.1 --- This may be a problem ---
Winpcap : 4.1.2

theKid · wrote on 4 Dec 2018, 01:53

19:39:50: Running steps for project ost...
19:39:50: Configuration unchanged, skipping qmake step.
19:39:50: Starting: "C:\Qt\Tools\mingw530_32\bin\mingw32-make.exe" 
cd common/ && ( test -e Makefile.ostproto || C:/Qt/5.11.2/mingw53_32/bin/qmake.exe -o Makefile.ostproto C:/Users/littl/Desktop/IntroSWE/Test/ostinato/common/ostproto.pro -spec win32-g++ CONFIG+=debug CONFIG+=qml_debug ) && C:/Qt/Tools/mingw530_32/bin/mingw32-make -f Makefile.ostproto 
mingw32-make[1]: Entering directory 'C:/Users/littl/Desktop/IntroSWE/Test/build-ost-Desktop_Qt_5_11_2_MinGW_32bit-Debug/common'
C:/Qt/Tools/mingw530_32/bin/mingw32-make -f Makefile.ostproto.Debug
mingw32-make[2]: Entering directory 'C:/Users/littl/Desktop/IntroSWE/Test/build-ost-Desktop_Qt_5_11_2_MinGW_32bit-Debug/common'
protoc --cpp_out=. --proto_path=. ../../ostinato/common/protocol.proto
../../ostinato/common/protocol.proto: File does not reside within any path specified using --proto_path (or -I).  You must specify a --proto_path which encompasses this file.  Note that the proto_path must be an exact prefix of the .proto file names -- protoc is too dumb to figure out when two paths (e.g. absolute and relative) are equivalent (it's harder than you think).
Makefile.ostproto.Debug:281: recipe for target 'protocol.pb.h' failed
mingw32-make[2]: Leaving directory 'C:/Users/littl/Desktop/IntroSWE/Test/build-ost-Desktop_Qt_5_11_2_MinGW_32bit-Debug/common'
Makefile.ostproto:36: recipe for target 'debug' failed
mingw32-make[1]: Leaving directory 'C:/Users/littl/Desktop/IntroSWE/Test/build-ost-Desktop_Qt_5_11_2_MinGW_32bit-Debug/common'
Makefile:99: recipe for target 'sub-common-ostproto-pro-make_first' failed
mingw32-make[2]: *** [protocol.pb.h] Error 1
mingw32-make[1]: *** [debug] Error 2
mingw32-make: *** [sub-common-ostproto-pro-make_first] Error 2
19:40:00: The process "C:\Qt\Tools\mingw530_32\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project ost (kit: Desktop Qt 5.11.2 MinGW 32bit)
When executing step "Make"
19:40:01: Elapsed time: 00:11.

SGaist · wrote on 4 Dec 2018, 18:14

Try replacing the . by $$PWD in the protobuff pri file.

theKid · wrote on 4 Dec 2018, 18:20

will try, thank you