Error installing on Windows

[hlalibe]

Trying to install in Windows,
after this line in command prompt:
..\Go\src\github.com\gopherdata\gophernotes\zmq-win>build.bat amd64
I get :
..Go/src/github.com/gopherdata/gophernotes/zmq-win/lib-amd64/libzmq.a: error adding symbols: File in wrong format
collect2.exe: error: ld returned 1 exit status

Googled it extensively, not sure how to fix this.

[cosmos72]

The first thing coming to my mind (cannot check now) is this:
did you install a 32 or 64 bit mingw?
It looks somewhat like an error from 32 vs 64 bit mismatch.

You can check with gcc -v

[hlalibe]

when I run gcc --version in MinGW directory I get:
gcc (tdm64-1) 5.1.0

[hlalibe]

I installed MinGW in c:\MinGW
but I'm trying to install GO on my D: drive, could this create my problem ?

[cosmos72]

As long as gcc is in your %PATH%, the actual location should not matter.
And tdm64 should mean 64 bit, although I expect gcc -v would report more information.
In summary, at the moment I don't know why the linker complains. I will try to run some compilation tests on Windows

[hlalibe]

As long as gcc is in your %PATH%, the actual location should not matter.
And tdm64 should mean 64 bit, although I expect gcc -v would report more information.
In summary, at the moment I don't know why the linker complains. I will try to run some compilation tests on Windows

• I checked my path and i see C:\TDM-GCC-64\bin

• sorry, i ran gcc -version instead of gcc -v, i thought they were the same. gcc - v returns:
  Using built-in specs.
  COLLECT_GCC=gcc
  COLLECT_LTO_WRAPPER=C:/TDM-GCC-64/bin/../libexec/gcc/x86_64-w64-mingw32/5.1.0/lto-wrapper.exe
  Target: x86_64-w64-mingw32
  Configured with: ../../../src/gcc-5.1.0/configure --build=x86_64-w64-mingw32 --enable-targets=all --enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-libgomp --enable-lto --enable-graphite --enable-cxx-flags=-DWINPTHREAD_STATIC --disable-build-with-cxx --disable-build-poststage1-with-cxx --enable-libstdcxx-debug --enable-threads=posix --enable-version-specific-runtime-libs --enable-fully-dynamic-string --enable-libstdcxx-threads --enable-libstdcxx-time --with-gnu-ld --disable-werror --disable-nls --disable-win32-registry --prefix=/mingw64tdm --with-local-prefix=/mingw64tdm --with-pkgversion=tdm64-1 --with-bugurl=http://tdm-gcc.tdragon.net/bugs
  Thread model: posix
  gcc version 5.1.0 (tdm64-1)

• I have another GO installation in my path: C:\Go\bin, don't know if this could interfere.

[cosmos72]

Good, you gcc is definitely 64 bit. The line Target: x86_64-... tells exactly that.

If you have two installations of Go toolchain, they can interfere if both are in %PATH%.
It could be the cause of the errors.

I recommend temporarily renaming the directory of the Go installation you are not using at the moment, and trying again to build gophernotes

[hlalibe]

Renaming the GO folder created other issues, so i wanted to start from zero and uninstalled GO first.
Then I followed the instructions on your page, there is one that is not clear for me:
We need to install from this page:
https://zeromq.org/download/

So for Windows I downloaded this file:
https://dl.bintray.com/zeromq/generic/libzmq-v141-x64-4_3_2.zip

Inside this zip file there are many files and .exe, but it is not clear what to do with the content of this zip file. The page says only to download and extract. But extract it where ? That might be linked to my error message.

[cosmos72]

ZeroMQ download/installation is not needed on Windows.

The README says:

• ZeroMQ 4.X.X - for convenience, pre-built Windows binaries (v4.2.1) are included in the zmq-win directory

[hlalibe]

Mmm...
But then I'm back to the same place I started I'm afraid. After running:
..Go\src\github.com\gopherdata\gophernotes\zmq-win>build.bat amd64
I get after a few seconds:
'# github.com/pebbe/zmq4
.../Go/src/github.com/gopherdata/gophernotes/zmq-win/lib-amd64/libzmq.a: error adding symbols: File in wrong format
collect2.exe: error: ld returned 1 exit status

In my first post i realised i missed copy/paste the first line of the error message:
'# github.com/pebbe/zmq4

Does it bring anything new ?

Possible similar issue here, they fixed it by reinstalling the libzmq from source. Could it help ? Not entirely sure i understand how to do this.
pebbe/zmq4#100

I've got monster data files to analyse and GO is my only solution. I really need to make it work.

[cosmos72]

Running out of ideas here...
In order of "unlikeliness":

1. try a 32 bit compile

set GOARCH=386
build.bat 386

2. Install a different mingw distribution
3. Ask to somebody you trust to compile gophernotes for you

[Update] it really looks the same as pebbe/zmq4#100
Then the solution could (hopefully) be to reinstall zmq4 from source, following the relevant instruction

[hlalibe]

ok. I tried option 1.
Where/when do i need to set GOARCH=386 ?
I entered that command on the command prompt on zmq-win> folder.
No error returned. Then I ran build.bat 386 and got:

github.com/pebbe/zmq4

....\Go\pkg\mod\github.com\pebbe\zmq4@v0.0.0-20170917105202-90d69e412a09\ctxoptions_windows.go:21:12: undefined: Context
...\Go\pkg\mod\github.com\pebbe\zmq4@v0.0.0-20170917105202-90d69e412a09\ctxoptions_windows.go:42:12: undefined: Context
...\Go\pkg\mod\github.com\pebbe\zmq4@v0.0.0-20170917105202-90d69e412a09\reactor.go:10:4: undefined: State
...\Go\pkg\mod\github.com\pebbe\zmq4@v0.0.0-20170917105202-90d69e412a09\reactor.go:11:9: undefined: State

thanks for your patience.

[cosmos72]

I have uploaded a binary release for 64 bit windows at https://github.com/gopherdata/gophernotes/releases/tag/v0.6.1
You can try it if you want.

Anyway, gophernotes is not very comfortable to use on Windows. The reason is: every time you want to import a new (i.e. never imported before) third-party package, you need to recompile gophernotes itself.
This is somewhat annoying, but becomes a showstopper if compiling gophernotes fails - as in your case.

It works much better on Linux and Mac OS X - and it's also easier to compile on these systems.

[hlalibe]

Progress.
I can now start a Jupyter Notebook, when selecting New and GO, it opens, but then I get this error message:

In my ..\go\bin\ directory i have only gophernotes.exe and libzmq.dll.

Let me know if simple to fix, otherwise I will find a way to run it under Linux.

[cosmos72]

Yes, some progress. Sorry that you are experiencing all these issue.
Just to understand your current situation:

1. Did you manage to compile it, or you downloaded the binary?
2. What happens if you run gophernotes.exe from a command prompt?
   (Going to the directory that contains it)

[hlalibe]

1. I did not compile, I downloaded your file from here: https://github.com/gopherdata/gophernotes/releases/tag/v0.6.1
   , unzipped and copied gophernotes.exe to ..\Go\bin\

2. If i run gophernotes.exe from command prompt in ..\Go\bin\ I get the exact same popup error message as above after a few seconds.

If it helps, my libzmq.dll is file version 4.1.0.5