我正在使用Macbook进行编程，并且收到了升级通知，但是将Macbook升级到最新版本后，我无法再启动Rails服务器。运行rails时出现这些错误。 我使用的版本是macOS Catalina版本10.15.4
Kaspers-MacBook-Air:BetterWing kaspervalentin$ rails s
Traceback (most recent call last):
61: from bin/rails:3:in `<main>'
60: from bin/rails:3:in `load'
59: from /Users/kaspervalentin/BetterWing/BetterWing/bin/spring:15:in `<top (required)>'
58: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
57: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
56: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
55: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
54: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
53: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
52: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
51: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
50: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
49: from /Users/kaspervalentin/BetterWing/BetterWing/bin/rails:9:in `<top (required)>'
48: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
47: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:257:in `load_dependency'
46: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `block in require'
45: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
44: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
43: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
42: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
41: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
40: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/commands.rb:18:in `<main>'
39: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/command.rb:46:in `invoke'
38: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/command/base.rb:69:in `perform'
37: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
36: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
35: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
34: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/commands/server/server_command.rb:142:in `perform'
33: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/commands/server/server_command.rb:142:in `tap'
32: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.4.1/lib/rails/commands/server/server_command.rb:145:in `block in perform'
31: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
30: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:257:in `load_dependency'
29: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `block in require'
28: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
27: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
26: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
25: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
24: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
23: from /Users/kaspervalentin/BetterWing/BetterWing/config/application.rb:5:in `<main>'
22: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler.rb:114:in `require'
21: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler/runtime.rb:65:in `require'
20: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler/runtime.rb:65:in `each'
19: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler/runtime.rb:76:in `block in require'
18: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler/runtime.rb:76:in `each'
17: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/2.6.0/bundler/runtime.rb:81:in `block (2 levels) in require'
16: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
15: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
14: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
13: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
12: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
11: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/uglifier-4.2.0/lib/uglifier.rb:5:in `<main>'
10: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
9: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:257:in `load_dependency'
8: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `block in require'
7: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
6: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
5: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
4: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
3: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
2: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/execjs-2.7.0/lib/execjs.rb:4:in `<main>'
1: from /Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/execjs-2.7.0/lib/execjs.rb:5:in `<module:ExecJS>'
/Users/kaspervalentin/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:58:in `autodetect': Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
答案 0 :(得分：1)
通过安装nodejs使其正常工作
答案 1 :(得分：0)
我遇到了相同的问题，可以通过在MacBook上从nodejs.org安装OS X的nodejs 12.18.0版来解决此问题