问题
While installing ruby-1.9.2-p0 with rvm on an updated Ubunutu x86_64, I keep getting an error in `merge': can't convert String into Hash (TypeError). All apt packages in rvm notes and those found in the rubygems manual have been installed. I believe the error is resulting when RVM is attempting to install rubygems.
I also get the same error installing ruby gems with the system ruby. I think this is a dependency problem.
I have compiled on Ubuntu before on both i386 and x86_64 before and never run into this issue. What am I missing/doing wrong?
Via system ruby:
$ ruby -v
ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
$ sudo ruby setup.rb
./lib/rubygems/config_file.rb:172:in `merge': can't convert String into Hash (TypeError)
from ./lib/rubygems/config_file.rb:172:in `initialize'
from ./lib/rubygems.rb:385:in `new'
from ./lib/rubygems.rb:385:in `configuration'
from ./lib/rubygems.rb:635:in `path'
from ./lib/rubygems/source_index.rb:68:in `installed_spec_directories'
from ./lib/rubygems/source_index.rb:58:in `from_installed_gems'
from ./lib/rubygems.rb:883:in `source_index'
from ./lib/rubygems/gem_path_searcher.rb:81:in `init_gemspecs'
from ./lib/rubygems/gem_path_searcher.rb:13:in `initialize'
from ./lib/rubygems.rb:841:in `new'
from ./lib/rubygems.rb:841:in `searcher'
from ./lib/rubygems.rb:840:in `synchronize'
from ./lib/rubygems.rb:840:in `searcher'
from ./lib/rubygems.rb:479:in `find_files'
from ./lib/rubygems.rb:983:in `load_plugins'
from ./lib/rubygems.rb:1139
from setup.rb:24:in `require'
from setup.rb:24
Via RVM:
[2010-09-20 10:46:27] make
file.c: In function 'file_expand_path':
file.c:2844: warning: 'b' may be used uninitialized in this function
io.c: In function 'argf_next_argv':
io.c:6821: warning: ignoring return value of 'fchown', declared with attribute warn_unused_result
process.c: In function 'rb_fork_err':
process.c:2516: warning: ignoring return value of 'write', declared with attribute warn_unused_result
process.c:2519: warning: ignoring return value of 'write', declared with attribute warn_unused_result
process.c: In function 'p_uid_change_privilege':
process.c:4111: warning: signed and unsigned type in conditional expression
process.c:4112: warning: signed and unsigned type in conditional expression
process.c:4113: warning: signed and unsigned type in conditional expression
process.c: In function 'proc_daemon':
process.c:4608: warning: ignoring return value of 'chdir', declared with attribute warn_unused_result
process.c: In function 'p_gid_change_privilege':
process.c:4730: warning: signed and unsigned type in conditional expression
process.c:4731: warning: signed and unsigned type in conditional expression
process.c:4732: warning: signed and unsigned type in conditional expression
random.c: In function 'fill_random_seed':
random.c:492: warning: ignoring return value of 'read', declared with attribute warn_unused_result
ossl_pkey_ec.c: In function 'ossl_ec_group_set_seed':
ossl_pkey_ec.c:1110: warning: comparison between signed and unsigned integer expressions
ossl_pkcs7.c: In function 'ossl_pkcs7_sym2typeid':
ossl_pkcs7.c:376: warning: comparison between signed and unsigned integer expressions
ossl_hmac.c: In function 'ossl_hmac_hexdigest':
ossl_hmac.c:162: warning: comparison between signed and unsigned integer expressions
ossl_hmac.c: In function 'ossl_hmac_s_hexdigest':
ossl_hmac.c:225: warning: comparison between signed and unsigned integer expressions
ossl_ssl_session.c: In function 'ossl_ssl_session_to_der':
ossl_ssl_session.c:208: warning: comparison between signed and unsigned integer expressions
parser.c: In function 'parse':
parser.c:58: warning: 'internal_enc' may be used uninitialized in this function
pty.c: In function 'chfunc':
pty.c:209: warning: ignoring return value of 'write', declared with attribute warn_unused_result
pty.c: In function 'establishShell':
pty.c:269: warning: ignoring return value of 'read', declared with attribute warn_unused_result
_sdbm.c: In function 'makroom':
_sdbm.c:425: warning: ignoring return value of 'write', declared with attribute warn_unused_result
_sdbm.c: In function 'chkpage':
_sdbm.c:864: warning: comparison between signed and unsigned integer expressions
rubyext.c: In function 'mktime_do':
rubyext.c:278: warning: comparison between signed and unsigned integer expressions
/home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/config_file.rb:159:in `merge': can't convert String into Hash (TypeError)
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/config_file.rb:159:in `initialize'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:390:in `new'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:390:in `configuration'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:618:in `path'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/source_index.rb:68:in `installed_spec_directories'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/source_index.rb:58:in `from_installed_gems'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:866:in `source_index'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/gem_path_searcher.rb:81:in `init_gemspecs'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems/gem_path_searcher.rb:13:in `initialize'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:824:in `new'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:824:in `block in searcher'
from :10:in `synchronize'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:823:in `searcher'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:484:in `find_files'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:966:in `load_plugins'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rubygems.rb:1136:in `'
from :29:in `require'
from :29:in `require'
from /home/deploy/.rvm/src/ruby-1.9.2-p0/lib/rdoc/rdoc.rb:438:in `'
from :29:in `require'
from :29:in `require'
from ./bin/rdoc:11:in `'
make: *** [rdoc] Error 1
回答1:
The solution was simple.
1) Read the source code. 2) Realize that the system_config merge succeeds. 3) Realize you have an error in your user_config (.gemrc file). 4) Fix it. 5) Everything works.
.gemrc correct syntax:
gem: --no-ri --no-rdoc
来源：https://stackoverflow.com/questions/3754409/rubygems-1-3-7-typeerror-in-merge-during-installation-on-ubuntu