Question

我正在尝试在目录中使用gulp构建Semantic-UI，但是我遇到了这些错误：

root@ks4000003:/var/www/mg.guylabbe.ca/web/inc/semantic# gulp build
[10:36:53] Using gulpfile /var/www/clients/client1/web179/web/inc/semantic/gulpfile.js
[10:36:53] Starting 'build'...
Building Semantic
[10:36:53] Starting 'build-javascript'...
Building Javascript
[10:36:54] 'build-javascript' errored after 19 ms
[10:36:54] TypeError: print is not a function
    at Gulp.module.exports (/var/www/clients/client1/web179/web/inc/semantic/tasks/build/javascript.js:64:11)
    at module.exports (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:273:3)
    at Gulp.Orchestrator._runStep (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:214:10)
    at Gulp.Orchestrator.start (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:134:8)
    at runNextSet (/var/www/clients/client1/web179/web/inc/node_modules/run-sequence/index.js:124:15)
    at runSequence (/var/www/clients/client1/web179/web/inc/node_modules/run-sequence/index.js:136:2)
    at Gulp.module.exports (/var/www/clients/client1/web179/web/inc/semantic/tasks/build.js:49:3)
    at module.exports (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:273:3)
[10:36:54] 'build' errored after 21 ms
[10:36:54] TypeError in plugin "run-sequence(build-javascript)"
Message:
    print is not a function
Stack:
TypeError: print is not a function
    at Gulp.module.exports (/var/www/clients/client1/web179/web/inc/semantic/tasks/build/javascript.js:64:11)
    at module.exports (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:273:3)
    at Gulp.Orchestrator._runStep (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:214:10)
    at Gulp.Orchestrator.start (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:134:8)
    at runNextSet (/var/www/clients/client1/web179/web/inc/node_modules/run-sequence/index.js:124:15)
    at runSequence (/var/www/clients/client1/web179/web/inc/node_modules/run-sequence/index.js:136:2)
    at Gulp.module.exports (/var/www/clients/client1/web179/web/inc/semantic/tasks/build.js:49:3)
    at module.exports (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/var/www/clients/client1/web179/web/inc/node_modules/orchestrator/index.js:273:3)

如果我查看javascript.js文件，则正确加载gulp-print：

var print = require('gulp-print');

并使用（下面的第8行）：

  // copy source javascript
  gulp.src(source.definitions + '/**/' + globs.components + '.js')
    .pipe(plumber())
    .pipe(flatten())
    .pipe(replace(comments.license.in, comments.license.out))
    .pipe(gulp.dest(output.uncompressed))
    .pipe(gulpif(config.hasPermission, chmod(config.permission)))
    .pipe(print(log.created))
    .pipe(uglify(settings.uglify))
    .pipe(rename(settings.rename.minJS))
    .pipe(gulp.dest(output.compressed))
    .pipe(gulpif(config.hasPermission, chmod(config.permission)))
    .pipe(print(log.created))
    .on('end', function() {
      gulp.start('package compressed js');
      gulp.start('package uncompressed js');
      callback();
    })
  ;

Gulp版本：

[10:42:25] CLI version 3.9.1
[10:42:25] Local version 3.9.1

有没有人对这个问题有所了解？谢谢！

Answer 1

gulpPrint函数是默认导出，因此，我需要在导入gulp依赖项时添加一些代码。替换：

var print        = require('gulp-print');

by：

var print        = require('gulp-print').default;
// usage
print();

所以gulpPrint（）;函数重命名为print（）;

或也可以按以下方式使用：

var print = require('gulp-print');
// usage
print.default()

如有疑问，请使用console.log（print）转储变量内容。如果你是像我这样的初学者，那将有助于理解它背后的逻辑。

Answer 2

第一个答案中描述的更改已经存在于语义UI guilpfile.js中。但是，在运行 gulp build 时遇到了相同的错误。

其原因是旧版的gulp-print。更新到最新版本后，gulp可以正常运行：

npm install gulp-print@5.0.0 --save-dev

gulp：＆＃34; TypeError：print不是函数＆＃34;

2 个答案: