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[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....

...lipse版本太老了,java版本太新了不匹配导致。解决:安装最新的eclipse,地址:https: www eclipse org downloads 参考:https: www eclipse org forums index php t 1089568 原因:eclipse版本太老了,java版本太新了不匹配导致。 解决:安装最新的eclips...
https://bbs.tsingfun.com/thread-1653-1-1.html 

ProCamera拓展:专业相机,提供滤镜、降噪、对焦等高级功能 - App Inventor...

专业相机专为与最新的 Android 相机 API 配合使用而设计,可提供更多功能。 扩展需要 Android 5.0 Lollipop 及更高版本才能运行。 扩展功能: 最新使用的API 相机滤镜 降噪模式 预览和输出的增强模式 锁定和解锁相机焦点 远距...
https://bbs.tsingfun.com/thread-1829-1-1.html 

MQTT 之保留消息(Retained Messages) - 创客硬件开发 - 清泛IT社区,为创新赋能!

...er.保留消息作用  可以让新订阅的客户端得到发布方的最新的状态值,而不必要等待发送。A retained message makes sense, when newly connected subscribers should receive messages immediately and shouldn’t have to wait until a publishing client sends the next messag...
https://bbs.tsingfun.com/thread-2104-1-1.html 

Need android.permission.BLUETOOTH_SCAN permission for android.content....

...,请求蓝牙扫描权限就能临时绕过。 当然,使用最新版本的拓展,应该就没有问题了。最新的拓展已经支持安卓14:https://www.fun123.cn/reference/iot/bluetoothle.html 参考:https://community.appinventor.mi ... le-android-12/66469
https://bbs.tsingfun.com/thread-2220-1-1.html 

【免费开放】App Inventor 2 LLMAI2Ext 自研拓展:接入DeepSeek、Kimi、通...

最新aix拓展永久下载地址:https://www.fun123.cn/reference/extensions/LLMAI2Ext.html 中文网开发国内大模型拓展的初衷 App Inventor 2 原生的ChatGPT组件由于是国外的,使用起来不太便捷,且各种限制。如今我们又身处AI浪潮之中,包括很多...
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How do I upload a file with metadata using a REST web service?

... "fixture":"Tuesday 7pm", "capacity":"", "tv":"" }, { "point":new GLatLng(40.294535,-74.682012), "homeTeam":"Applebees", "awayTeam":"After LUPip Mtg Spot", "markerImage":"images/newcastle.png", ...
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Bash: infinite sleep (infinite blocking)

...ct timespec. Looking at rpl_nanosleep in GDB, infinity gets converted to { tv_sec = 9223372036854775807, tv_nsec = 999999999 } on Ubuntu 16.04. – nh2 Dec 11 '17 at 2:43 ...
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How do I execute a command and get the output of the command within C++ using POSIX?

...locking reads. fd_set readfds; struct timeval timeout; timeout.tv_sec = 0; /* Seconds */ timeout.tv_usec = 1000; /* Microseconds */ FD_ZERO(&readfds); FD_SET(childToParent[READ_FD], &readfds); switch (select (1 + childToParent[READ_FD], &readfds, (fd_set*)NULL, (fd_set*...
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How to concatenate two MP4 files using FFmpeg?

... FILES For .mp4 files (which I obtained from DailyMotion.com: a 50 minute tv episode, downloadable only in three parts, as three .mp4 video files) the following was an effective solution for Windows 7, and does NOT involve re-encoding the files. I renamed the files (as file1.mp4, file2.mp4, file3....
https://www.tsingfun.com/it/da... 

MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...

...安装很简单,可以依照自己的操作系统选择下载rpm或者deb软件包来安装,当然也可以使用源代码来安装,不过要注意的是,必须确保系统已经安装了依赖的Perl软件包: shell> perl -MCPAN -e 'install DBI' shell> perl -MCPAN -e 'install DBD::mys...