我正在尝试安装trackingJs，并正在设置环境，但我收到了以下错误消息：任务"serve"不在您的gulpfile中。如果有人以前使用过这个，并且可以详细建议我如何正确设置我的环境，我很难设置它。我真的很感激。
以下是该网站的链接：https://trackingjs.com/docs.html
error:
投掷失误；^
Error: Cannot find module '/Users/alex/Downloads/tracking.js-master/server'
at Function.Module._resolveFilename (module.js:455:15)
at Function.Module._load (module.js:403:25)
at Module.runMain (module.js:590:10)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:509:3
Alexs-MacBook-Pro-2:tracking.js-master alex$ node gulpfile.js
Alexs-MacBook-Pro-2:tracking.js-master alex$ gulp serve
[12:59:06] Using gulpfile ~/Downloads/tracking.js-master/gulpfile.js
[12:59:06] Task 'serve' is not in your gulpfile
[12:59:06] Please check the documentation for proper gulpfile formatting
Alexs-MacBook-Pro-2:tracking.js-master alex$
'use strict';
var gulp = require('gulp');
var concat = require('gulp-concat');
var header = require('gulp-header');
var jsdoc = require('gulp-jsdoc');
var jshint = require('gulp-jshint');
var nodeunit = require('gulp-nodeunit');
var pkg = require('./package.json');
var rename = require('gulp-rename');
var rimraf = require('gulp-rimraf');
var stylish = require('jshint-stylish');
var uglify = require('gulp-uglify');
var esformatter = require('gulp-esformatter');
var runSequence = require('run-sequence');
gulp.task('all', ['clean'], function() {
return runSequence(['build', 'build-data']);
});
gulp.task('clean', function() {
return gulp.src('build').pipe(rimraf());
});
gulp.task( 'default', [ 'serve' ] );
gulp.task('build', function() {
var files = [
'src/tracking.js',
'src/utils/EventEmitter.js',
'src/utils/Canvas.js',
'src/utils/DisjointSet.js',
'src/utils/Image.js',
'src/detection/ViolaJones.js',
'src/features/Brief.js',
'src/features/Fast.js',
'src/math/Math.js',
'src/math/Matrix.js',
'src/pose/EPnP.js',
'src/trackers/Tracker.js',
'src/trackers/TrackerTask.js',
'src/trackers/ColorTracker.js',
'src/trackers/ObjectTracker.js',
'src/trackers/LandmarksTracker.js',
'src/alignment/Regressor.js',
'src/alignment/LBF.js'
];
return gulp.src(files)
.pipe(concat('tracking.js'))
.pipe(banner())
.pipe(gulp.dest('build'))
.pipe(uglify())
.pipe(rename({
suffix: '-min'
}))
.pipe(banner())
.pipe(gulp.dest('build'));
});
gulp.task('build-data', function() {
return gulp.src('src/detection/training/haar/**.js')
.pipe(banner())
.pipe(gulp.dest('build/data'))
.pipe(rename({
suffix: '-min'
}))
.pipe(uglify())
.pipe(banner())
.pipe(gulp.dest('build/data'));
});
gulp.task('docs', function() {
return gulp.src(['src/**/*.js', 'README.md'])
.pipe(jsdoc('docs'));
});
gulp.task('format', function() {
return gulp.src(['src/**/*.js', '!src/detection/training/**/*.js'])
.pipe(esformatter())
.pipe(gulp.dest('src'));
});
gulp.task('lint', function() {
return gulp.src('src/**/**.js')
.pipe(jshint())
.pipe(jshint.reporter(stylish));
});
gulp.task('test', function(cb) {
gulp.src('test/*.js')
.pipe(nodeunit())
.on('end', cb);
});
gulp.task('test-watch', function() {
return gulp.watch(['src/**/*.js', 'test/**/*.js'], ['test']);
});
gulp.task('watch', function() {
gulp.watch('src/**/*.js', ['build']);
gulp.watch('src/data/*.js', ['build-data']);
});
// Private helpers
// ===============
function banner() {
var stamp = [
'/**',
' * <%= pkg.name %> - <%= pkg.description %>',
' * @author <%= pkg.author.name %> <<%= pkg.author.email %>>',
' * @version v<%= pkg.version %>',
' * @link <%= pkg.homepage %>',
' * @license <%= pkg.license %>',
' */',
''
].join('n');
return header(stamp, { pkg: pkg });
}
gulp.task( 'default', [ 'serve' ] );
你提到默认任务是服务，但没有：
gulp.task('serve', function() { ...
在您的代码中找到
编辑：项目本身声明：
在工作时，您需要一个基本的HTTP服务器来为您的页面提供服务。通过加载项目的完成版本来测试web服务器。
此服务器不包含在您的下载中。它也不包括在这个狼吞虎咽的脚本中。为了方便地提供文件，例如，您可以使用http服务器：
运行一次：
npm install http-server -g
启动服务器：
cd /Users/alex/Downloads/tracking.js-master
http-server
或
http-server /Users/alex/Downloads/tracking.js-master
您的项目将可访问：
http://localhost:8080/examples/brief.html
http://localhost:8080/build/yourfilename.html
等。