问题 macOS Big Sur系统，使用Gralde在Terminal编译时，提示Could not find tool.jar. Please check that /library/internet plug-ins/javaappletplugin.plugin/contents/home contains a valid jdk installation.
原因 未配置JAVA_HOME，编译时找到了JRE的目录，而JRE目录则不包含tool.jar。
方法
使用/usr/libexec/java_home -V查看JDK目录
1 2 3 4 5 /usr/libexec/java_home -V Matching Java Virtual Machines (2): 1.8.211.12 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home 1.8.0_211 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home /Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Homes
设置JAVA_HOME
1 2 3 vim ~/.zshrc export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home
参考链接 MACBOOK(OSX)最升到11.0.1后android 打包报错 Could not find tools.jar. Please check that /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home contains a valid JDK installation.
