Unable to import library in Android studio

The reason is that a library called json-simple that the library depends on has not been imported.

There is a jar file that contains a library that depends on GitHub, so it will be solved by using it.
https://github.com/boatmeme/microsoft-translator-java-api

Instead of incorporating jar files, I think you can add them to app/build.gradle dependencies.

 dependencies {
    compile'com.memetix:microsoft-translator-java-api:0.6.2'
}

There are at least two problems.

• Problem in Figure 1 - The jar created in the downloaded Microsoft Translator API is not appropriate.Class of this API is not located through the class path.
• Problems in Figure 2 - Another library used by this API is missing.

If you want to skip the trouble and use it anyway, I think you can eliminate the error by removing the jar file that you are currently trying to import and then executing one of the following A and B proposals.

Proposed A: Leave library dependency resolution to gradle and do not download jar files yourself.
Proposed B: Instead of creating a jar file by yourself, use a jar file with a dependency library provided in advance. - microsoft-translator-java-api-0.6.2-jar-with-dependencies.jar

I can't say for the problem in Figure 1 because I don't know the details of where I downloaded the file and how I made it into a jar file in the procedure of Downloading Microsoft Translator API. However, as far as the capture is concerned, there is a microsoft-transfer-java-api> directory. Perhaps the manifest file does not contain the Class-Path attribute.
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For the issue in Figure 2, you will need to download a separate dependency library and import it into the project.