当我尝试将项目树移动到git repo时,我仍然收到此错误消息.
我用这个项目检查了我的目录的权限,这些是在777上设置的.在my_project我设置的目录中的终端:
git init
如果我试试
git add.
要么
git commit -m"首次上传"
所以我会得到错误
fatal: Unable to create '/path/my_proj/.git/index.lock': File exists.
If no other git process is currently running, this probably means a
git process crashed in this repository earlier. Make sure no other git
process is running and remove the file manually to continue.
Run Code Online (Sandbox Code Playgroud)
我也尝试创建一个新的repo并在那里提交它,但遗憾的是仍然是同样的错误信息......我已经有点绝望了,我试着找到整个下午的解决方案,但仍然没有成功...
请问有谁帮助我,问题的原因是什么?
百万次谢谢!
简单方案:
<tr class="something">
<td>A</td>
<td>B</td>
<td>C</td>
<td>D</td>
</tr>
Run Code Online (Sandbox Code Playgroud)
我需要设置一个固定的宽度<td>.我试过了:
tr.something {
td {
width: 90px;
}
}
Run Code Online (Sandbox Code Playgroud)
也
td.something {
width: 90px;
}
Run Code Online (Sandbox Code Playgroud)
对于
<td class="something">B</td>
Run Code Online (Sandbox Code Playgroud)
乃至
<td style="width: 90px;">B</td>
Run Code Online (Sandbox Code Playgroud)
但宽度<td>仍然相同.
在网站https://code.google.com/apis/console上我已经注册了我的应用程序,为我的应用设置了生成的客户端ID:和客户端密钥,并尝试使用Google登录.不幸的是,我收到了错误消息:
Error: redirect_uri_mismatch
The redirect URI in the request: http://127.0.0.1:3000/auth/google_oauth2/callback did not match a registered redirect URI
scope=https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email
response_type=code
redirect_uri=http://127.0.0.1:3000/auth/google_oauth2/callback
access_type=offline
approval_prompt=force
client_id=generated_id
Run Code Online (Sandbox Code Playgroud)
这条消息是什么意思,我该如何解决?我使用gem omniauth-google-oauth2.
我知道我可以通过git clone命令获得项目,但有什么办法,如何从BitBucket.org通过Web界面下载项目?在最好的方式,我正在寻找一种方法来下载项目源作为ZIP压缩文件.
当我尝试运行bundle(bundle install)时,我总是得到
Installing pg (0.13.2) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/Users/ryan/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
--with-pg-config=/path/to/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** 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 …Run Code Online (Sandbox Code Playgroud) 我想要实现这样的事情:

当我将鼠标悬停在图像上时,我想在图像上添加一些带有文字和图标的深色图像.
我被困在这里.我找到了一些教程,但他们没有解决这个问题.另外,另一个问题 - 每个图像都有不同的高度.宽度始终相同.
如何实现这种效果?
考虑:
DROP DATABASE db_name;
ERROR 1010 (HY000): Error dropping database (can't rmdir './db_name', errno: 66)
Run Code Online (Sandbox Code Playgroud)
问题是我不知道文件/目录的位置 - / usr/local/mysql/bin /中缺少此文件...
我该如何解决这个问题?
我已经完全绝望了 - 我花了一整天的时间尝试将rmagickgem 安装到Mac OS X Lion,但实际上这是一个悲剧.我在Google上看到了很多类似的主题,但没有任何帮助我.
我想完全卸载imagemagick通过brew并重新安装(这是运作良好),然后安装rmagick,但每次当我尝试安装这种宝石的时候,我收到此错误:
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
/Users/adam/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
extconf.rb:128: Use RbConfig instead of obsolete and deprecated Config.
checking for clang... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... yes …Run Code Online (Sandbox Code Playgroud) 我在SO上找到了一些主题,但我仍然无法找到正确的查询设置.
这是查询,在localhost上很有用:
@cars = Car.find_by_sql('SELECT cars.*, COUNT(cars.id) AS counter
FROM cars
LEFT JOIN users ON cars.id=users.car_id
GROUP BY cars.id ORDER BY counter DESC')
Run Code Online (Sandbox Code Playgroud)
但是在Heroku上给出了上面的错误 - GROUP BY子句或者在聚合函数中使用.
然后我在某处读过,我应该指定表中的所有列,所以我尝试了这个:
@cars = Car.find_by_sql('SELECT cars.id, cars.name, cars.created_at,
cars.updated_at, COUNT(cars.id) AS counter
FROM cars
LEFT JOIN users ON cars.id=users.car_id
GROUP BY (cars.id, cars.name, cars.created_at, cars.updated_at)
ORDER BY counter DESC')
Run Code Online (Sandbox Code Playgroud)
但这不适用于localhost,也不适用于Heroku ......
什么应该是正确的查询配置?
我怎样才能转换这一行
<body data-spy="abcd">
Run Code Online (Sandbox Code Playgroud)
到HAML语法?
这个给我一个错误
%body{:data-spy => "abcd"}
Run Code Online (Sandbox Code Playgroud)