我正在尝试在Rails中启动一个应用程序，但是我被这个阻止了：
LoadError: Error loading the 'sqlite3' Active Record adapter. Missing a gem it
depends on? can't activate sqlite3 (~> 1.3.6), already activated sqlite3-1.4.0.
Make sure all dependencies are added to Gemfile.
但是我已经卸载了所有版本的SQLite3并尝试安装1.3.6，但是我只是得到了这一点：
ERROR: Could not find a valid gem '1.3.6' (>= 0) in any repository
1 gem installed
根据this answer，这可能是因为rubygems.org关闭了，所以我尝试了以下方法：
traceroute rubygems.org
返回以下内容：
traceroute: Warning: rubygems.org has multiple addresses; using 151.101.128.70
traceroute to rubygems.org (151.101.128.70), 64 hops max, 52 byte packets
1 192.168.0.1 (192.168.0.1) 3.260 ms 2.445 ms 3.005 ms
2 * * *
3 10.3.69.38 (10.3.69.38) 18.196 ms 20.517 ms 16.249 ms
4 189.202.16.145.cable.dyn.cableonline.com.mx (189.202.16.145) 40.200 ms
23.218 ms 38.053 ms
5 189.202.16.65.cable.dyn.cableonline.com.mx (189.202.16.65) 28.350 ms
26.587 ms 28.483 ms
6 126.189-204-129.clientesbestel.com.mx (189.204.129.126) 29.104 ms 38.330
ms 24.105 ms
7 ppcs-dfo40-dfx02-001-bestelmex01.bestel.com.mx (200.57.2.201) 55.884 ms
130.189-204-204.clientesbestel.com.mx (189.204.204.130) 53.268 ms 60.241 ms
8 * * *
9 * * *
10 * * *
.......(continued)
64 * * *
我不确定这是否意味着rubygems.org的连接是否有问题。如果有人对问题可能有什么想法，我将不胜感激指针：-）