兄弟这个问题解决了没?

我也遇上同样的问题了, java-client 5.0.4 + appium desktop 1.2.4 , 也是输入不了密码

        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability("deviceName", "Andorid Emulator");
        capabilities.setCapability("automationName", "uiautomator2");
        capabilities.setCapability("platformName", "Android");
        capabilities.setCapability("platformVersion", "4.4.2");
        capabilities.setCapability("appPackage", "com.test.doctor");
        capabilities.setCapability("appActivity", ".user.UserLoginActivity");
        capabilities.setCapability("newCommandTimeout", 0);
//        capabilities.setCapability("unicodeKeyboard", true);
//        capabilities.setCapability("resetKeyboard", true);

        URL url = new URL("http://127.0.0.1:4723/wd/hub");
        driver = new AndroidDriver(url, capabilities);
        driver.manage().timeouts().implicitlyWait(sleepInterval, TimeUnit.SECONDS);

Appium-desktop 异常为:

[JSONWP Proxy] Proxying [POST /element/915615d6-5bad-40d6-874d-f9f8e30bf6ae/value] to [POST http://localhost:8200/wd/hub/session/935da85d-9bce-4b0c-a8bd-f9447cb7ba9b/element/915615d6-5bad-40d6-874d-f9f8e30bf6ae/value] with body: {"elementId":"915615d6-5bad-40d6-874d-f9f8e30bf6ae","text":"88888","replace":false}
[MJSONWP] Encountered internal error running command:  {"jsonwp":{"value":"java.lang.NullPointerException
at android.support.test.uiautomator.UiObject2.setText(UiObject2.java:601)
at io.appium.uiautomator2.model.UiObject2Element.setText(UiObject2Element.java:129)
at io.appium.uiautomator2.handler.SendKeysToElement.safeHandle(SendKeysToElement.java:83)
at io.appium.uiautomator2.handler.request.SafeRequestHandler.handle(SafeRequestHandler.java:56)
at io.appium.uiautomator2.server.AppiumServlet.handleRequest(AppiumServlet.java:202)
at io.appium.uiautomator2.server.AppiumServlet.handleHttpRequest(AppiumServlet.java:193)
at io.appium.uiautomator2.http.ServerHandler.channelRead(ServerHandler.java:44)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:611)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:514)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:140)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Thread.java:841)\n","status":13,"sessionId":"935da85d-9bce-4b0c-a8bd-f9447cb7ba9b"}} ProxyRequestError: Could not proxy command to remote server. Original error: 500 - {"value":"java.lang.NullPointerException
at android.support.test.uiautomator.UiObject2.setText(UiObject2.java:601)
at io.appium.uiautomator2.model.UiObject2Element.setText(UiObject2Element.java:129)
at io.appium.uiautomator2.handler.SendKeysToElement.safeHandle(SendKeysToElement.java:83)
at io.appium.uiautomator2.handler.request.SafeRequestHandler.handle(SafeRequestHandler.java:56)
at io.appium.uiautomator2.server.AppiumServlet.handleRequest(AppiumServlet.java:202)
at io.appium.uiautomator2.server.AppiumServlet.handleHttpRequest(AppiumServlet.java:193)
at io.appium.uiautomator2.http.ServerHandler.channelRead(ServerHandler.java:44)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:345)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:611)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:514)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:140)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Thread.java:841)\n","status":13,"sessionId":"935da85d-9bce-4b0c-a8bd-f9447cb7ba9b"}
    at JWProxy.proxy$ (C:\Users\tomavis\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\appium-base-driver\lib\jsonwp-proxy\proxy.js:152:13)
    at tryCatch (C:\Users\tomavis\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\tomavis\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as throw] (C:\Users\tomavis\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (C:\Users\tomavis\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[HTTP] <-- POST /wd/hub/session/0b05d808-949c-413a-b7ac-3d2665f10ee5/element/915615d6-5bad-40d6-874d-f9f8e30bf6ae/value 500 563 ms - 3444 

另外，安卓版本是否低于 5.0，2 对低版本支持不好