This doesn't seem to generate any views for any options about rails-bootstrap

[DanielKehoe]

I've run Rails Composer with the same settings as yours and have been unable to reproduce the issue. There's no problem installing the 'nio4r' gem when I run 'bundle install.'

What happens when you select the option to build the example application 'learn-rails'?

[edharve]

The 'learn'rails' build works fine.

It's very strange. I've tried with a number of different settings, and they all return an error with 'nio4r' gem and am asked to run 'bundle exec spring binstub --all'

This also happens if I try and 'devise' options,

Many thanks for any assistance.

The log file returns the following , which I am not able to understand what this means:

"have_header: checking for unistd.h... -------------------- yes

"gcc -o conftest -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -L. -L/home/eddie/.rvm/rubies/ruby-2.3.3/lib -Wl,-R/home/eddie/.rvm/rubies/ruby-2.3.3/lib -L. -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,-R/home/eddie/.rvm/rubies/ruby-2.3.3/lib -L/home/eddie/.rvm/rubies/ruby-2.3.3/lib -lruby -lpthread -lgmp -ldl -lcrypt -lm -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char *argv)
4: {
5: return 0;
6: }
/ end */

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <unistd.h>
/ end */

---

have_header: checking for sys/select.h... -------------------- yes

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <sys/select.h>
/ end */

---

have_header: checking for poll.h... -------------------- yes

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <poll.h>
/ end */

---

have_header: checking for sys/epoll.h... -------------------- yes

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <sys/epoll.h>
/ end */

---

have_header: checking for sys/event.h... -------------------- no

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
conftest.c:3:23: fatal error: sys/event.h: No such file or directory
#include <sys/event.h>
^
compilation terminated.
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <sys/event.h>
/ end */

---

have_header: checking for port.h... -------------------- no

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
conftest.c:3:18: fatal error: port.h: No such file or directory
#include <port.h>
^
compilation terminated.
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <port.h>
/ end */

---

have_header: checking for sys/resource.h... -------------------- yes

"gcc -E -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/x86_64-linux -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0/ruby/backward -I/home/eddie/.rvm/rubies/ruby-2.3.3/include/ruby-2.3.0 -I. -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -fPIC conftest.c -o conftest.i"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <sys/resource.h>
/ end */

--------------------"

[DanielKehoe]

What OS? Should be fine on a Mac. On Windows you can have typical problems with difficulty compiling gems that require native extensions.

[edharve]

I'm using Ubuntu 17.04. I gave up using Windows as it is terrible with Rails!

[DanielKehoe]

Check to see if the 'nio4r' gem has issues on Linux.

[edharve]

It seems like it was a problem with my OS somewhere. I think possibly conflicts somewhere caused by rvm, but I have reinstalled it and using rbenv instead and all is working fine now. Thanks for the help :)