Node.js 无法在Ubuntu 13.x中卸载express

我已经安装了express，但它不再工作。当我在终端中键入“express”时，我得到：

bash: /usr/local/bin/express: No such file or directory

如果我尝试卸载，我会得到

sudo npm uninstall –g express
npm WARN uninstall not installed in /home/user/expressApps/sausage/node_modules: "–g"
npm WARN uninstall not installed in /home/user/expressApps/sausage/node_modules: "express"

sudo npm install –g express
npm WARN package.json application-name@0.0.1 No README.md file found!
npm http GET https://registry.npmjs.org/express/3.12.1
npm http GET https://registry.npmjs.org/%E2%80%93g
npm http 404 https://registry.npmjs.org/%E2%80%93g
npm ERR! 404 '%E2%80%93g' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it
npm ERR! 404 
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, or http url, or git url.

npm ERR! System Linux 3.11.0-24-generic
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "–g" "express"
npm ERR! cwd /home/johnmlocklear/expressApps/sausage
npm ERR! node -v v0.10.15
npm ERR! npm -v 1.2.18
npm ERR! code E404
npm http 304 https://registry.npmjs.org/express/3.12.1
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/johnmlocklear/expressApps/sausage/npm-debug.log
npm ERR! not ok code 0

或者如果我尝试重新安装，我会

sudo npm uninstall –g express
npm WARN uninstall not installed in /home/user/expressApps/sausage/node_modules: "–g"
npm WARN uninstall not installed in /home/user/expressApps/sausage/node_modules: "express"

sudo npm install –g express
npm WARN package.json application-name@0.0.1 No README.md file found!
npm http GET https://registry.npmjs.org/express/3.12.1
npm http GET https://registry.npmjs.org/%E2%80%93g
npm http 404 https://registry.npmjs.org/%E2%80%93g
npm ERR! 404 '%E2%80%93g' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it
npm ERR! 404 
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, or http url, or git url.

npm ERR! System Linux 3.11.0-24-generic
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "–g" "express"
npm ERR! cwd /home/johnmlocklear/expressApps/sausage
npm ERR! node -v v0.10.15
npm ERR! npm -v 1.2.18
npm ERR! code E404
npm http 304 https://registry.npmjs.org/express/3.12.1
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/johnmlocklear/expressApps/sausage/npm-debug.log
npm ERR! not ok code 0

---

如何让express重新工作？

我的主要线索在以下错误行中：

npm http GET https://registry.npmjs.org/%E2%80%93g
npm http 404 https://registry.npmjs.org/%E2%80%93g
npm ERR! 404 '%E2%80%93g' is not in the npm registry.

%E2%80%93g

（注意末尾的

g

）看起来很疯狂。它似乎直接连接到这条线路上：

sudo npm install –g express

在

g

旁边的

-

不是一个简单的破折号，而是一些经过url编码的UTF-8字符。非常确定，因为url编码的

%E2%80%93

等于

e28093

十六进制。这很可能来自文本编辑器的复制和粘贴，该编辑器以某种方式自动将简单虚线设置为en虚线。存储代码时要小心这样的东西&作弊

要修复此问题，请使用实际破折号运行命令，如下所示：

sudo npm install -g express

我看到的另一个问题是：

bash:/usr/local/bin/express：没有这样的文件或目录

---

那么

/usr/local/bin/express

从哪里来？如果

express

不在您的路径中，那么您甚至不会收到这样的完整路径消息？您的个人资料中是否有

bash

别名？如果您自己设置，我强烈建议只将

/usr/local/bin/

添加到您的shell路径，而不是设置别名。

因此我认为我的问题是我使用

sudo apt-get install express

在那之后的某个时候，我也从npm安装了。为了清理这一切，我跑了

sudo apt-get uninstall express

…我还进入了~/.npm并删除了express和express Generator文件夹。然后我跑了两个

sudo npm install -g express
sudo npm install -g express-generator

---

…现在一切似乎都正常了。

很高兴事情解决了！但是关于我的答案被发现的

sudo-nom-uninstall–g express

问题呢？在你的命令中，这绝对是一个URL编码的

en-dash

。这解决了我的问题，谢谢，还有一个问题。但还有一件事，我使用npm安装了npm。。这很奇怪，但这是我可以正确安装npm的唯一方法

sudo npm install npm