我试着用这个命令运行本机应用程序。
npx react-native run-android --variant=stagingDebug --appId com.xx_staging
但我收到了这条错误信息。我希望在我的机器上运行多个java版本。我怎么能这么做?另外,我也不想改变MaxPermSize=512m.我想保持MaxPermSize=512m的原样。
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.
info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 2228 file(s) to forward-jetify. Using 4 workers...
info Starting JS server...
'"adb"' is not recognized as an internal or external command,
operable program or batch file.
info Launching emulator...
error Failed to launch emulator. Reason: No emulators found as an output of `emulator -list-avds`.
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...
Starting a Gradle Daemon (subsequent builds will be faster)
FAILURE: Build failed with an exception.
* What went wrong:
Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the User Manual chapter on the daemon at https://docs.gradle.org/6.7/userguide/gradle_daemon.html
Process command line: C:\Program Files\Java\jdk-18.0.2.1\bin\java.exe -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED --add-opens java.prefs/java.util.prefs=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country=US -Duser.language=en -Duser.variant -cp C:\Users\rbza9\.gradle\wrapper\dists\gradle-6.7-all\cuy9mc7upwgwgeb72wkcrupxe\gradle-6.7\lib\gradle-launcher-6.7.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 6.7
Please read the following process output to find out more:
-----------------------
Unrecognized VM option 'MaxPermSize=512m'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.
Error: Command failed: gradlew.bat app:installStagingDebug -PreactNativeDevServerPort=8081
FAILURE: Build failed with an exception.
* What went wrong:
Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the User Manual chapter on the daemon at https://docs.gradle.org/6.7/userguide/gradle_daemon.html
Process command line: C:\Program Files\Java\jdk-18.0.2.1\bin\java.exe -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED --add-opens java.prefs/java.util.prefs=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country=US -Duser.language=en -Duser.variant -cp C:\Users\rbza9\.gradle\wrapper\dists\gradle-6.7-all\cuy9mc7upwgwgeb72wkcrupxe\gradle-6.7\lib\gradle-launcher-6.7.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 6.7
Please read the following process output to find out more:
-----------------------
Unrecognized VM option 'MaxPermSize=512m'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
at makeError (F:\test\xx\node_modules\execa\index.js:174:9)
at F:\test\xx\node_modules\execa\index.js:278:16
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async runOnAllDevices (F:\test\xx\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:109:5)
at async Command.handleAction (F:\test\xx\node_modules\@react-native-community\cli\build\index.js:192:9)
info Run CLI with --verbose flag for more details.
如何纠正此错误?
发布于 2022-08-30 15:59:24
这个选项在Java 11和Java 17之间被完全删除了。如果您想使用Java 17或更高版本,您必须使用 remove MaxPermSize=512m
--如果存在该选项,JVM显然会拒绝启动。
请注意,对于Java8,此选项已经不再有任何效果,因此即使是Java8,也可以安全地删除。(https://docs.oracle.com/javase/9/migrate/)
将此选项保留在某些配置中的唯一原因是,如果您仍然必须支持Java 7,但是Java 7已经过时了,因此IMHO对于支持Java 7的时间是否值得怀疑。
发布于 2022-10-26 22:47:28
这一选择似乎已经退役。您可以将一个标志-XX:+IgnoreUnrecognizedVMOptions添加到启动应用程序的命令行中。在这种情况下,JVM将忽略所有未识别的标志。
https://stackoverflow.com/questions/73545053
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