heroku上的Rails应用程序的塞子大小开始变得太重，因此我尝试使用以下2条命令来减小它：
heroku repo:gc --app your-app-name
heroku repo:purge_cache --app your-app-name
以下部署出现此错误：
remote: An error occurred while installing charlock_holmes (0.7.6), and Bundler cannot
remote: continue.
remote: Make sure that `gem install charlock_holmes -v '0.7.6'` succeeds before
remote: bundling.
remote:
remote: In Gemfile:
remote: charlock_holmes
remote:
remote: !
remote: ! Failed to install gems via Bundler.
remote: !
remote: ! Push rejected, failed to compile Ruby app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to app-name.
remote:
完整跟踪：
remote: Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
remote:
remote: current directory:
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/bundle/ruby/2.5.0/gems/charlock_holmes-0.7.6/ext/charlock_holmes
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/ruby-2.5.1/bin/ruby -r
remote: ./siteconf20190520-506-kmncq3.rb extconf.rb
remote: checking for -licui18n... yes
remote: checking for -licui18n... yes
remote: checking for unicode/ucnv.h... yes
remote: checking for -lz... yes
remote: checking for -licuuc... yes
remote: checking for -licudata... yes
remote: creating Makefile
remote:
remote: current directory:
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/bundle/ruby/2.5.0/gems/charlock_holmes-0.7.6/ext/charlock_holmes
remote: make "DESTDIR=" clean
remote:
remote: current directory:
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/bundle/ruby/2.5.0/gems/charlock_holmes-0.7.6/ext/charlock_holmes
remote: make "DESTDIR="
remote: compiling converter.c
remote: compiling encoding_detector.c
remote: compiling ext.c
remote: compiling transliterator.cpp
remote: cc1plus: warning: command line option ‘-Wimplicit-int’ is valid for C/ObjC but
remote: not for C++
remote: cc1plus: warning: command line option ‘-Wdeclaration-after-statement’ is valid
remote: for C/ObjC but not for C++
remote: cc1plus: warning: command line option ‘-Wimplicit-function-declaration’ is valid
remote: for C/ObjC but not for C++
remote: cc1plus: warning: unrecognized command line option ‘-Wno-self-assign’
remote: cc1plus: warning: unrecognized command line option
remote: ‘-Wno-constant-logical-operand’
remote: cc1plus: warning: unrecognized command line option ‘-Wno-parentheses-equality’
remote: linking shared-object charlock_holmes/charlock_holmes.so
remote: /usr/bin/ld:
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/.apt/usr/lib/x86_64-linux-gnu/libicui18n.a(smpdtfmt.ao):
remote: relocation R_X86_64_PC32 against symbol `_ZTIN6icu_6013DecimalFormatE' can not
remote: be used when making a shared object; recompile with -fPIC
remote: /usr/bin/ld: final link failed: Bad value
remote: collect2: error: ld returned 1 exit status
remote: Makefile:257: recipe for target 'charlock_holmes.so' failed
remote: make: *** [charlock_holmes.so] Error 1
remote:
remote: make failed, exit code 2
remote:
remote: Gem files will remain installed in
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/bundle/ruby/2.5.0/gems/charlock_holmes-0.7.6
remote: for inspection.
remote: Results logged to
remote: /tmp/build_7a7e1aff2dd1ed9791db1eba7f656cba/vendor/bundle/ruby/2.5.0/extensions/x86_64-linux/2.5.0/charlock_holmes-0.7.6/gem_make.out
remote:
remote: An error occurred while installing charlock_holmes (0.7.6), and Bundler cannot
remote: continue.
remote: Make sure that `gem install charlock_holmes -v '0.7.6'` succeeds before
remote: bundling.
remote:
remote: In Gemfile:
remote: charlock_holmes
remote:
remote: !
remote: ! Failed to install gems via Bundler.
remote: !
remote: ! Push rejected, failed to compile Ruby app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to app-name.
remote:
如果我尝试从bash终端安装charlock_holmes gem，我会得到：
gem install charlock_holmes -v'0.7.6'
Fetching: charlock_holmes-0.7.6.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing charlock_holmes:
ERROR: Failed to build gem native extension.
current directory: /app/vendor/ruby-2.5.1/lib/ruby/gems/2.5.0/gems/charlock_holmes-0.7.6/ext/charlock_holmes
/app/vendor/ruby-2.5.1/bin/ruby -r ./siteconf20190520-7-dzkpmo.rb extconf.rb
checking for -licui18n... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/app/vendor/ruby-2.5.1/bin/$(RUBY_BASE_NAME)
--with-icu-dir
--without-icu-dir
--with-icu-include
--without-icu-include=${icu-dir}/include
--with-icu-lib
--without-icu-lib=${icu-dir}/lib
--with-icui18nlib
--without-icui18nlib
/app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:541:in `try_link0'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:559:in `try_link'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:777:in `try_func'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:1004:in `block in have_library'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:947:in `block in checking_for'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:350:in `block (2 levels) in postpone'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:320:in `open'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:350:in `block in postpone'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:320:in `open'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:346:in `postpone'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:946:in `checking_for'
from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/mkmf.rb:999:in `have_library'
from extconf.rb:31:in `<main>'
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/app/vendor/ruby-2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-linux/2.5.0/charlock_holmes-0.7.6/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /app/vendor/ruby-2.5.1/lib/ruby/gems/2.5.0/gems/charlock_holmes-0.7.6 for inspection.
Results logged to /app/vendor/ruby-2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-linux/2.5.0/charlock_holmes-0.7.6/gem_make.out
如果显示.../charlock_holmes-0.7.6/mkmf.log文件的输出，则显示：
"gcc -o conftest -I/app/vendor/ruby-2.5.1/include/ruby-2.5.0/x86_64-linux -I/app/vendor/ruby-2.5.1/include/ruby-2.5.0/ruby/backward -I/app/vendor/ruby-2.5.1/include/ruby-2.5.0 -I. -O3 -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wno-tautological-compare -Wno-parentheses-equality -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable -Wimplicit-int -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wmisleading-indentation -Wno-packed-bitfield-compat -Wsuggest-attribute=noreturn -Wsuggest-attribute=format -Wimplicit-fallthrough=0 -Wduplicated-cond -Wrestrict -fPIC conftest.c -L. -L/app/vendor/ruby-2.5.1/lib -Wl,-rpath,/app/vendor/ruby-2.5.1/lib -L. -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,-rpath,'/../lib' -Wl,-rpath,'/../lib' -lruby -lpthread -lgmp -ldl -lcrypt -lm -lc"
In file included from /app/vendor/ruby-2.5.1/include/ruby-2.5.0/ruby/ruby.h:29:0,
from /app/vendor/ruby-2.5.1/include/ruby-2.5.0/ruby.h:33,
from conftest.c:1:
/app/vendor/ruby-2.5.1/include/ruby-2.5.0/ruby/defines.h:112:10: fatal error: stdio.h: No such file or directory
#include <stdio.h>
^~~~~~~~~
compilation terminated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char **argv)
4: {
5: return 0;
6: }
/* end */
在heroku上，我有这些buildpacks
=== my_app Buildpack网址
heroku / ruby
我的Aptfile是：
libicu52
libicu-dev
有什么想法吗？
谢谢！