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If the decompile process didn't work properly, try the Android APK Decompiler.
You must set the correct path and name in the manifest file to your own application class.
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java.lang.RuntimeException: Unable to create application com.tns.NativeScriptApplication: com.tns.NativeScriptException: Failed to find module: "@angular/router/common_router_providers", relative to: /app/tns_modules/