Double Conversion Error

Beginner Questions
1

Hi! I’m trying to build and run my ITK from source on Ubuntu 20.04. I pulled from the repo, used cmake to configure and generate it, then ran the example/installation hello world example with a separate build folder under /bin. It gave me the following output and error:

– Configuring done
– Generating done
– Build files have been written to: /home/haochenz/ITK/Examples/Installation/bin
Scanning dependencies of target HelloWorld
[ 50%] Building CXX object CMakeFiles/HelloWorld.dir/HelloWorld.cxx.o
make[2]: *** No rule to make target ‘/home/haochenz/ITK-build/lib/libitkdouble-conversion-5.3.a’, needed by ‘HelloWorld’. Stop.
make[1]: *** [CMakeFiles/Makefile2:76: CMakeFiles/HelloWorld.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

It seems that it need double-conversion. This error have not occurred previously when I was on Windows. I tried to turn on the ITK_USE_SYSTEM_DOUBLECONVERSIO option in cmake and it generated more errors regarding the doubleconversion. I looked into the past discussion and github issues, don’t think they are particularly helpful in my case. I’m not sure what to do rn, any help would be great!

2

Which version of ITK are you using? Try master or v5.3rc3.

3

I’m sure I’m currently on Master

4

I haven’t built on Linux for a few weeks now, but I do have 20.04. Could you provide repro steps, such as exact configure command? I do see you have examples enabled.

5

MyB I found out a very dumb error. I directly included the ITK build folder pth in cmake configuration without making in the build directory first. That must be it

1 Like