找不到符号方法添加 SoapObject(SoapObject)

cannot find symbol method add SoapObject(SoapObject)

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如果你能帮助我,我会遇到这样的错误。

下载此 jar 文件;

ksoap2-android-assembly-3.4.0-jar.jar

Download this jar file by clicking this link and put in libs folder in android studio