Project entries not supported.

我想在test_spring_web中加入test_spring_service项目的jar包,test_spring_service已在本地仓库中存在,为什么还会报出Invalid classpath publish/export dependency /mvn_service. Project entries not supported.的错误?

 

 

不要动eclipse.在控制台执行:mvn eclipse:eclipse,然后刷新eclipse的项目试试.再不行就在pom中的plugins节点内加:

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-eclipse-plugin</artifactId>
                <version>2.9</version>
                <configuration>
                    <additionalProjectnatures>
                        <projectnature>org.eclipse.jdt.core.javanature</projectnature>
                        <!-- 
                        <projectnature>org.eclipse.m2e.core.maven2Nature</projectnature>
                        <projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
                         -->
                    </additionalProjectnatures>
                    <additionalBuildcommands>
                        <buildcommand>org.eclipse.jdt.core.javabuilder</buildcommand>
                        <!-- 
                        <buildcommand>org.eclipse.m2e.core.maven2Builder</buildcommand>
                        <buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
                         -->
                    </additionalBuildcommands>
                </configuration>
            </plugin>

 

然后再 

 

mvn eclipse:clean

mvn eclipse:eclipse

 

一般的eclipse的项目空间有.project和.classpath两个文件.执行eclipse:eclipse就是让maven的eclipse插件把.classpath内的jar引用地址重新更新一遍. eclipse:clean就是删除所有eclipse项目文件在用eclipse:eclipse重建

 

当然,上面的是复制别人的。

我的解决方案是:

是否所依赖的包是最新的包?

所以先更新该包。

然后Project celan 

### Auto.js Task Scheduling and Action API Usage In the context of developing applications or scripts using Auto.js, scheduling tasks is a fundamental feature that allows automation at specific intervals or conditions. The environment provided by Auto.js supports various methods to schedule actions through its APIs. #### Using `threads` Module for Concurrent Tasks The `threads` module can be utilized to create concurrent threads which are essential when dealing with multiple asynchronous operations such as task scheduling[^1]. By creating new thread instances, one can execute functions independently without blocking other parts of the script: ```javascript let myThread = threads.start(function() { while (true) { console.log("This message will appear every second."); sleep(1000); // Sleep for 1000 milliseconds. } }); ``` #### Utilizing `events` For Event-driven Programming Event-driven programming plays an important role in automating responses based on certain events within the application lifecycle. Through registering listeners via the `events` object, it's possible to trigger predefined behaviors upon occurrence of specified triggers like time-based schedules or user interactions[^2]: ```javascript // Registering event listener events.on('time', function(time){ log(`Current Time: ${time}`); }); setInterval(() => { let currentTime = new Date().toLocaleTimeString(); events.emit('time', currentTime); }, 60 * 1000); // Emit 'time' event every minute ``` #### Implementing Scheduled Actions With `cron` Syntax Support For more complex timing requirements, integrating cron syntax into your project offers flexibility unmatched by simple interval timers. Although not natively supported directly inside Auto.js core libraries, third-party packages exist that provide this functionality effectively extending capabilities beyond basic features offered out-of-the-box. An example package would allow defining jobs similar to Unix crontab entries enabling precise control over execution frequency down to day-of-week specificity among others. ```javascript var CronJob = require('cron').CronJob; new CronJob('* * * * *', () => { console.log('You will see this message every minute'); }).start(); ``` Note: Integration of external modules may vary depending on platform compatibility; ensure proper setup according to documentation guidelines before implementation. --related questions-- 1. How does threading impact performance in long-running Auto.js processes? 2. Can you explain how to implement custom event handlers in Auto.js projects efficiently? 3. What alternatives are available if native support for advanced scheduling isn't sufficient in Auto.js? 4. Is there any official recommendation from developers regarding best practices for handling scheduled tasks? 5. Are there limitations imposed by Android OS versions concerning background services used alongside Auto.js?
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