我在ubuntu服务器中有一个react native项目，我想构建一个Android应用进行生产。为此，我首先必须生成Gradle Wrapper文件，所以我在android目录中运行此命令
gradle wrapper --gradle-version <my-gradle-version>
运行此命令后，出现此错误
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ':app'.
> SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
我知道如何sdk.dir在local.properties文件或ANDROID_HOME环境变量中定义SDK位置。
但我的问题是未安装SDK
我的问题是在反应本机中需要构建的android应用程序的sdk以及如何在ubuntu服务器中安装它
我使用以下命令生成了 jwt 密钥（RSA 密钥：私有和公共）
openssl genrsa -out private.key 2048
openssl rsa -in private.key -pubout -out public.key
之后，我创建了一个名为 的文件private2.key，我给了它相同的private.key内容（唯一的区别是我删除了除第一条和最后一条之外的所有断行）
另外，我创建了一个名为 的文件public2.key，我给了它相同的public.key内容（唯一的区别是我删除了除第一个和最后一个之外的所有断行）
私钥：
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
private2.key：
-----BEGIN RSA PRIVATE KEY-----
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
-----END RSA PRIVATE KEY-----
公钥：
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy6fZ1JmG4BX02R2Odj/z …我发现以下两个包@socket.io/redis-adapter用于@socket.io/redis-emitter将数据发送到其他服务器上的客户端。
这两个包有区别吗？如果是，有什么区别？何时使用其中一种而不是另一种？