开发cordova插件时无法找到源java类(Android)

我正在开发一个使用巴西付款api称为pagseguro的cordova插件.但那不是重点.

当我将我的cordova插件添加到我的项目并运行“cordova run android”时,我收到此错误,我不知道如何继续：

Execution failed for task ':app:compileDebugJavaWithJavac'.

Unable to find source java class: ‘/home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/src/main/java/main/java/com/pagseguroCordova/PagseguroCordova.java’ because it does not belong to any of the source dirs: ‘[/home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/src/main/java, /home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/src/debug/java, /home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/build/generated/source/r/debug, /home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/build/generated/source/buildConfig/debug, /home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/build/generated/source/aidl/debug, /home/marcelo/Documents/Delicia-e-Foco/app/platforms/android/app/build/generated/source/rs/debug]’

已经尝试修改我的plugin.xml.这是plugin.xml：

<?xml version="1.0" encoding="UTF-8"?>
    <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
id="cordova-plugin-pagseguro"
version="1.0.0">

<js-module src="./www/plugin.js" name="plugin">
    emphasized text<clobbers target="PagseguroCordova" />
</js-module>

<!-- android -->
<platform name="android">
    <config-file target="res/xml/config.xml" parent="/*">
        <feature name="pagseguroCordova" >
            <param name="android-package" value="com.example.pagseguroCordova"/>
        </feature>
    </config-file>

    <framework src="build.gradle" custom="true" type="gradleReference" />
    <framework src='br.uol.pagseguro.client:btserial:1.1.0' />
    <framework src='br.uol.pagseguro.client:plugpag:1.1.0' />
    <source-file src="src/android/PagseguroCordova.java" target-dir="src/main/java/com/pagseguroCordova/" />
</platform>

我正在使用gradle导入dependecies,这是我的build.gradle文件：

repositories {
    jcenter()
        maven {
            url 'https://github.com/pagseguromaster/plugpag/raw/master/android'
    }
}

dependencies {
    compile 'br.uol.pagseguro.client:btserial:1.1.0'
    compile 'br.uol.pagseguro.client:plugpag:1.1.0'
}

有人知道导致这个错误的原因是什么？感谢您的关注.

删除.idea和.gradle文件夹对我有用.

下次启动时,在Android Studio中打开项目文件夹,它应该重新创建它们.

然而它然后给了我Android Studio: “Please select Android SDK”对话框.

修复我的是：文件 – >项目结构 – > (模块)App – > BuildToolsVersion – >
…然后(奇怪地)单击以打开下拉菜单,然后单击已选择的完全相同的项目.

然后重建.

排序,谷歌！

(Android Studio 3.1.2)