我在通过自制软件安装mongodb时遇到问题（新MacBook Pro，OS X 10.10.2，全新安装）。显然，我尝试安装的每个其他软件包（例如wget）都会抛出此错误，但是软件包已正确安装。不幸的是，brew install mongodb的安装失败并出现以下错误：
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mongodb-2.6.7.yosemite.bottle.tar.gz
curl: (60) SSL certificate problem: Invalid certificate chain
More details here: http://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a "bundle"
of Certificate Authority (CA) public keys (CA certs). If the default
bundle file isn't adequate, you can specify an alternate file
using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
the -k (or --insecure) option.
Error: Failed to download resource "mongodb"
Download failed: https://downloads.sf.net/project/machomebrew/Bottles/mongodb-2.6.7.yosemite.bottle.tar.gz
Warning: Bottle installation failed: building from source.
==> Installing mongodb dependency: scons
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/scons-2.3.4.yosemite.bottle.1.tar.gz
curl: (60) SSL certificate problem: Invalid certificate chain
More details here: http://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a "bundle"
of Certificate Authority (CA) public keys (CA certs). If the default
bundle file isn't adequate, you can specify an alternate file
using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
the -k (or --insecure) option.
Error: Failed to download resource "scons"
Download failed: https://downloads.sf.net/project/machomebrew/Bottles/scons-2.3.4.yosemite.bottle.1.tar.gz
Warning: Bottle installation failed: building from source.
==> Downloading https://downloads.sourceforge.net/scons/scons-2.3.4.tar.gz
curl: (60) SSL certificate problem: Invalid certificate chain
More details here: http://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a "bundle"
of Certificate Authority (CA) public keys (CA certs). If the default
bundle file isn't adequate, you can specify an alternate file
using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
the -k (or --insecure) option.
Error: Failed to download resource "scons"
Download failed: https://downloads.sourceforge.net/scons/scons-2.3.4.tar.gz
我还找到了这个帖子How to fix curl: (60) SSL certificate: Invalid certificate chain，我在其中添加了downloads.sf.net和downloads.sourceforge.net的证书（两者都使用*.cloudfront.net作为其证书，因此，您获得了一个域名missmatch）通过Safari来“永远信任”。在此之后，安装失败并出现SHA1不匹配（我还运行brew cleanup -s来清理旧的缓存包）：
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mongodb-2.6.7.yosemite.bottle.tar.gz
######################################################################## 100.0%
Error: SHA1 mismatch
Expected: 4b1749b645a744b38b4959daac46bf80353e3b32
Actual: a2fd3379ea944f6b2f97fb0f79b7b85cb3e14d0b
Archive: /Library/Caches/Homebrew/mongodb-2.6.7.yosemite.bottle.tar.gz
To retry an incomplete download, remove the file above.
Warning: Bottle installation failed: building from source.
==> Installing mongodb dependency: scons
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/scons-2.3.4.yosemite.bottle.1.tar.gz
######################################################################## 100.0%
Error: SHA1 mismatch
Expected: 819d08b7e8c1ba2451db6d7d848f689b108b40aa
Actual: a2fd3379ea944f6b2f97fb0f79b7b85cb3e14d0b
Archive: /Library/Caches/Homebrew/scons-2.3.4.yosemite.bottle.1.tar.gz
To retry an incomplete download, remove the file above.
Warning: Bottle installation failed: building from source.
==> Downloading https://downloads.sourceforge.net/scons/scons-2.3.4.tar.gz
######################################################################## 100.0%
Error: SHA1 mismatch
Expected: 8c55f8c15221c1b3536a041d46056ddd7fa2d23a
Actual: a2fd3379ea944f6b2f97fb0f79b7b85cb3e14d0b
Archive: /Library/Caches/Homebrew/scons-2.3.4.tar.gz
To retry an incomplete download, remove the file above.
我还发现了这个github问题https://github.com/Homebrew/homebrew/issues/28844，但我的钥匙串中没有任何过期的证书。任何帮助表示赞赏！
答案 0 :(得分：2)
我刚才遇到了同样的问题。这似乎是暂时的，因为SourceForge网站部分失效。
sourceforge.net网站暂时处于静态离线模式。 在主网站恢复服务之前，只有非常有限的一组项目页面可用。
我想这个问题很快就会解决，你可以在几个小时内重试。可能会有更新发布到https://twitter.com/sfnet_ops，尽管目前没有关于此特定中断的任何信息。