解决 App Inventor 2 Runtime Error运行时错误的专业指南AppInventorRuntimeError解决 MIT App Inventor 运行时错误的专业指南引言在使用 MIT App Inventor 开发应用程序时，运行时错误是开发者经常遇到的问题。这些错误可能源于不同的原因，如组...

...身有问题导致的。 https://community.appinventor.mit.edu/t/error-507-unable-to-connect/1474 BluetoothClient 组件仅支持支持串行端口配置文件 (SPP) 的设备。如果您的设备通过除 SPP UUID 之外的 UUID 支持 RFCOMM，则需要使用 ConnectWithUUID 块并指定...

请求标头用字典的话，就会出现 error 1101 unable to get a response with the specified url 错误， 改为二元列表就可以了：

...ogram Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(151,5): error MSB6006: “cmd.exe”已退出，代码为 3。 1> 1>生成失败 原因：一台电脑上使用cmake编译后拷贝到另一台电脑上，但是cmake的路径与原电脑不一致从而导致以上错误...

Error 503: The specified address is not a valid Bluetooth MAC address. 原因是地址格式不对，蓝牙列表可能显示不对。大概率是经典蓝牙和 ble 低功耗蓝牙的设备列表处理的方式不对。 本例中就是经典蓝牙，但是用的 ble 的方式显示导致...

Error 515: Not connected to a Bluetooth device. 原因：经典蓝牙设备未正常连接上，就进行数据收发操作导致的异常，加一个连接状态判断就行。

... Express as the web server when developing. When I try to debug, I get the error message below. 15 Answers ...

... You're getting this error because you're trying to add/update a row to table2 that does not have a valid value for the UserID field based on the values currently stored in table1. If you post some more code I can help you diagnose the specific c...

... Running rvm rubygems latest resulted in an error complaining about missing checksums. However, things started working without that too... apparently you could force it with --verify-downloads 1 if you needed to. Any ideas why that might be? It tried to retrieve versio...

... Running Management Studio as administrator did NOT work for me. This error occurs when attempting to start the windows service. – nuzzolilo Dec 10 '13 at 19:58 9 ...