使用 Leap motion 找不到模块 "sleep"
Can not find module "sleep", with Leap motion
我正在尝试将我的 Android 项目与 Leap motion 控制器连接起来，并使用 this question 中提到的程序和源作为参考。
我是 Node.js 的新手，无法使 JavaScript 文件与 Node 一起使用，也无法解决依赖关系。我试过 node update 但没有用。我需要解决以下错误：
$ node index.js
module.js:338
throw err;
^
Error: Cannot find module 'sleep'
at Function.Module._resolveFilename (module.js:336:15)
at Function.Module._load (module.js:278:25)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (/home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/index.js:11:13)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
这里是 JavaScript 文件供参考：
var http = require('http'), express = require('express'), app = express(), server = http
.createServer(app), port = process.env.PORT || 5000, position = {
x : 0,
y : 0,
z : 0,
hand : '',
present : false
};
var updated = false;
var sleep = require('sleep');
server.listen(port, function() {
console.log('Listening on ' + port);
});
function hasUpdate() {
if (updated) {
updated = false;
return true;
}
return false;
}
var BinaryServer = require('binaryjs').BinaryServer;
var binaryServer = new BinaryServer({
port : 9000
});
binaryServer.on('connection', function(client) {
console.log('accept binary connection');
var stream = client.createStream();
var buffer = [];
console.log('got stream');
stream.on('data', function(data) {
buffer.push(data);
var text = buffer.join();
var end = text.lastIndexOf('}');
if (end > -1) {
var temp = text.substr(0, end+1);
var start = temp.lastIndexOf('{');
if (start > -1) {
var message = text.substr(start, end+1);
var o=JSON.parse(message);
updateHandPosition(o);
if (end +1 < buffer.length) {
buffer = buffer.splice(end + 1, buffer.length);
}else{
buffer=[];
}
}
// console.log('received data from client ' + message + ' ' + end
// + ' ' + start + ' ');
}
});
});
app.use(express.bodyParser());
app.get('/', function(request, response) {
response.sendfile('public/index.html');
});
function updateHandPosition(o){
position.present = o.present;
if (position.present) {
position.x = o.x;
position.y = o.y;
position.z = o.z;
position.hand = o.hand;
} else {
position.x = null;
position.y = null;
position.z = null;
position.hand = null;
}
updated=true;
// console.log('updating hand position '+JSON.stringify(position));
}
app.post('/update', function(request, response) {
updateHandPosition(response.body);
response.json({
success : true
});
updated = true;
});
app.get('/retrieve', function(request, response) {
response.json(getPositionData());
});
function getPositionData() {
if (position.present) {
return {
present : true,
x : position.x,
y : position.y,
z : position.z,
hand : position.hand
};
} else {
return {
present : false
};
}
}
function forever(request, response) {
this.response = response;
this.request = request;
var ref = this;
this.request.on('close', function() {
ref.clear();
});
this.request.on('end', function() {
ref.clear();
});
};
forever.prototype.clear = function() {
this.request = null;
this.response = null;
};
forever.prototype.stream = function() {
if (this.response != null) {
if (hasUpdate()) {
this.response.write(JSON.stringify(getPositionData()));
this.response.write(",");
}
var ref = this;
setTimeout(function() {
ref.stream();
}, 5);
}
};
app.get('/stream', function(request, response) {
var f = new forever(request, response);
f.stream();
});
app.get(/^(.+)$/, function(req, res) {
res.sendfile('public/' + req.params[0]);
});
我尝试使用 "node install sleep" 但我收到此错误日志：
npm WARN package.json LeapCallController@0.1.0 No repository field.
/
> sleep@2.0.0 install /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/node_modules/sleep
> node-gyp rebuild
gyp ERR! configure error
gyp ERR! stack Error: "pre" versions of node cannot be installed, use the --nodedir flag instead
gyp ERR! stack at install (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/install.js:66:16)
gyp ERR! stack at Object.self.commands.(anonymous function) [as install] (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/node-gyp.js:66:37)
gyp ERR! stack at getNodeDir (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:152:20)
gyp ERR! stack at /usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:95:9
gyp ERR! stack at ChildProcess.exithandler (child_process.js:723:7)
gyp ERR! stack at ChildProcess.emit (events.js:110:17)
gyp ERR! stack at maybeClose (child_process.js:1000:16)
gyp ERR! stack at Socket.<anonymous> (child_process.js:1168:11)
gyp ERR! stack at Socket.emit (events.js:107:17)
gyp ERR! stack at Pipe.close (net.js:461:12)
gyp ERR! System Linux 3.16.0-30-generic
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/node_modules/sleep
gyp ERR! node -v v0.13.0-pre
gyp ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm ERR! sleep@2.0.0 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the sleep@2.0.0 install script.
npm ERR! This is most likely a problem with the sleep package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp rebuild
npm ERR! You can get their info via:
npm ERR! npm owner ls sleep
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 3.16.0-30-generic
npm ERR! command "/usr/local/bin/node" "/usr/local/bin/npm" "install" "sleep"
npm ERR! cwd /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent
npm ERR! node -v v0.13.0-pre
npm ERR! npm -v 1.4.28
npm ERR! code ELIFECYCLE
npm ERR! not ok code 0
如果您不使用睡眠，请删除此行
var sleep = require('sleep');
或使用
安装睡眠模块
npm install sleep
并重启节点项目
我正在尝试将我的 Android 项目与 Leap motion 控制器连接起来，并使用 this question 中提到的程序和源作为参考。
我是 Node.js 的新手，无法使 JavaScript 文件与 Node 一起使用，也无法解决依赖关系。我试过 node update 但没有用。我需要解决以下错误：
$ node index.js
module.js:338
throw err;
^
Error: Cannot find module 'sleep'
at Function.Module._resolveFilename (module.js:336:15)
at Function.Module._load (module.js:278:25)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (/home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/index.js:11:13)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
这里是 JavaScript 文件供参考：
var http = require('http'), express = require('express'), app = express(), server = http
.createServer(app), port = process.env.PORT || 5000, position = {
x : 0,
y : 0,
z : 0,
hand : '',
present : false
};
var updated = false;
var sleep = require('sleep');
server.listen(port, function() {
console.log('Listening on ' + port);
});
function hasUpdate() {
if (updated) {
updated = false;
return true;
}
return false;
}
var BinaryServer = require('binaryjs').BinaryServer;
var binaryServer = new BinaryServer({
port : 9000
});
binaryServer.on('connection', function(client) {
console.log('accept binary connection');
var stream = client.createStream();
var buffer = [];
console.log('got stream');
stream.on('data', function(data) {
buffer.push(data);
var text = buffer.join();
var end = text.lastIndexOf('}');
if (end > -1) {
var temp = text.substr(0, end+1);
var start = temp.lastIndexOf('{');
if (start > -1) {
var message = text.substr(start, end+1);
var o=JSON.parse(message);
updateHandPosition(o);
if (end +1 < buffer.length) {
buffer = buffer.splice(end + 1, buffer.length);
}else{
buffer=[];
}
}
// console.log('received data from client ' + message + ' ' + end
// + ' ' + start + ' ');
}
});
});
app.use(express.bodyParser());
app.get('/', function(request, response) {
response.sendfile('public/index.html');
});
function updateHandPosition(o){
position.present = o.present;
if (position.present) {
position.x = o.x;
position.y = o.y;
position.z = o.z;
position.hand = o.hand;
} else {
position.x = null;
position.y = null;
position.z = null;
position.hand = null;
}
updated=true;
// console.log('updating hand position '+JSON.stringify(position));
}
app.post('/update', function(request, response) {
updateHandPosition(response.body);
response.json({
success : true
});
updated = true;
});
app.get('/retrieve', function(request, response) {
response.json(getPositionData());
});
function getPositionData() {
if (position.present) {
return {
present : true,
x : position.x,
y : position.y,
z : position.z,
hand : position.hand
};
} else {
return {
present : false
};
}
}
function forever(request, response) {
this.response = response;
this.request = request;
var ref = this;
this.request.on('close', function() {
ref.clear();
});
this.request.on('end', function() {
ref.clear();
});
};
forever.prototype.clear = function() {
this.request = null;
this.response = null;
};
forever.prototype.stream = function() {
if (this.response != null) {
if (hasUpdate()) {
this.response.write(JSON.stringify(getPositionData()));
this.response.write(",");
}
var ref = this;
setTimeout(function() {
ref.stream();
}, 5);
}
};
app.get('/stream', function(request, response) {
var f = new forever(request, response);
f.stream();
});
app.get(/^(.+)$/, function(req, res) {
res.sendfile('public/' + req.params[0]);
});
我尝试使用 "node install sleep" 但我收到此错误日志：
npm WARN package.json LeapCallController@0.1.0 No repository field.
/
> sleep@2.0.0 install /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/node_modules/sleep
> node-gyp rebuild
gyp ERR! configure error
gyp ERR! stack Error: "pre" versions of node cannot be installed, use the --nodedir flag instead
gyp ERR! stack at install (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/install.js:66:16)
gyp ERR! stack at Object.self.commands.(anonymous function) [as install] (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/node-gyp.js:66:37)
gyp ERR! stack at getNodeDir (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:152:20)
gyp ERR! stack at /usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:95:9
gyp ERR! stack at ChildProcess.exithandler (child_process.js:723:7)
gyp ERR! stack at ChildProcess.emit (events.js:110:17)
gyp ERR! stack at maybeClose (child_process.js:1000:16)
gyp ERR! stack at Socket.<anonymous> (child_process.js:1168:11)
gyp ERR! stack at Socket.emit (events.js:107:17)
gyp ERR! stack at Pipe.close (net.js:461:12)
gyp ERR! System Linux 3.16.0-30-generic
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent/node_modules/sleep
gyp ERR! node -v v0.13.0-pre
gyp ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm ERR! sleep@2.0.0 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the sleep@2.0.0 install script.
npm ERR! This is most likely a problem with the sleep package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp rebuild
npm ERR! You can get their info via:
npm ERR! npm owner ls sleep
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 3.16.0-30-generic
npm ERR! command "/usr/local/bin/node" "/usr/local/bin/npm" "install" "sleep"
npm ERR! cwd /home/shivin/Development/LeapJS code/LeapMotionAndroidBridge/WebContent
npm ERR! node -v v0.13.0-pre
npm ERR! npm -v 1.4.28
npm ERR! code ELIFECYCLE
npm ERR! not ok code 0
如果您不使用睡眠，请删除此行
var sleep = require('sleep');
或使用
安装睡眠模块npm install sleep
并重启节点项目