java.lang.IllegalArgumentException

Unable to create call adapter for class example.Simple for method SimpleService.getSimple

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  • Stack trace

    • java.lang.IllegalArgumentException: Unable to create call adapter for class example.Simple for method SimpleService.getSimple at retrofit.Utils.methodError(Utils.java:201) at retrofit.MethodHandler.createCallAdapter(MethodHandler.java:51) at retrofit.MethodHandler.create(MethodHandler.java:30) at retrofit.Retrofit.loadMethodHandler(Retrofit.java:138) at retrofit.Retrofit$1.invoke(Retrofit.java:127) at com.sun.proxy.$Proxy0.getSimple(Unknown Source)

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