use error java.lang.Double

[wangfpp]

react-native info

System:
OS: Linux 5.0 Ubuntu 19.04 (Disco Dingo)
CPU: (8) x64 Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
Memory: 537.14 MB / 15.55 GB
Shell: 5.0.3 - /bin/bash
Binaries:
Node: 10.16.2 - /usr/local/bin/node
Yarn: 1.16.0 - /usr/local/bin/yarn
npm: 6.9.0 - /usr/local/bin/npm
SDKs:
Android SDK:
API Levels: 22, 23, 24, 25, 26, 27, 28, 29
Build Tools: 26.0.2, 28.0.3
System Images: android-22 | Intel x86 Atom, android-23 | Intel x86 Atom, android-25 | Google APIs ARM 64 v8a, android-27 | Intel x86 Atom, android-27 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom, android-29 | Google Play Intel x86 Atom
npmPackages:
react: 16.9.0 => 16.9.0
react-native: 0.61.5 => 0.61.5
npmGlobalPackages:
react-native-cli: 2.0.1

ERROR Message

java.lang.Double cannot be cast to java.lang.String

没有更多的报错信息了

[Marcello168]

demo 的例子写错了 串口的波特率 应该是字符串的

react-native info

System:
OS: Linux 5.0 Ubuntu 19.04 (Disco Dingo)
CPU: (8) x64 Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
Memory: 537.14 MB / 15.55 GB
Shell: 5.0.3 - /bin/bash
Binaries:
Node: 10.16.2 - /usr/local/bin/node
Yarn: 1.16.0 - /usr/local/bin/yarn
npm: 6.9.0 - /usr/local/bin/npm
SDKs:
Android SDK:
API Levels: 22, 23, 24, 25, 26, 27, 28, 29
Build Tools: 26.0.2, 28.0.3
System Images: android-22 | Intel x86 Atom, android-23 | Intel x86 Atom, android-25 | Google APIs ARM 64 v8a, android-27 | Intel x86 Atom, android-27 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom, android-29 | Google Play Intel x86 Atom
npmPackages:
react: 16.9.0 => 16.9.0
react-native: 0.61.5 => 0.61.5
npmGlobalPackages:
react-native-cli: 2.0.1

ERROR Message

java.lang.Double cannot be cast to java.lang.String

没有更多的报错信息了
demo 的例子写错了 串口的波特率 应该是字符串的

[Eleven1108]

请问问题解决了吗，我们调整成字符串并没有打开端口