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解决 App Inventor 2 Runtime Error运行时错误的专业指南 - App Inventor 2...
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...
Error 507: unable to connect. is the device turned on? 无法连接，设备...
...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...
【解决】error 1101 unable to get a response with the specified url - A...
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：
解决 Error 503: The specified address is not a valid Bluetooth MAC add...
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...
【解决】Error 515: Not connected to a Bluetooth device. - 创客硬件开发...
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。
CS0120: An object reference is required for the nonstatic field, method, or property 'foo'
...d.Sleep(1000);
}
setTextboxText(result);
}
More info about this error can be found on MSDN.
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What's the difference between lists and tuples?
... and address in a customer record; in fact, doing so would generally be an error, which the tuple's immutability prevents you from committing.
– kindall
Oct 28 '13 at 18:58
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“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
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This error occurs because OSX implements a pid access policy which requires a digital signature for binaries to access other processes pids. To enable gdb access to other processes, we must first code sign the binary. This signatu...
javac is not recognized as an internal or external command, operable program or batch file [closed]
I am experiencing an error while trying to compile Java programs.
6 Answers
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Java; String replace (using regular expressions)?
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Still getting error "invalid escape sequence" ... am i missing something?
– Dan Burzo
Mar 10 '09 at 21:03
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