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Apps Failed: dlopen failed: cannot locate symbol "png_set_longjmp_fn" referenced by "liblept.so" error

Hi everyone. New to the forum, new to Android programming. I'm using Android Studio on Windows 10. I recently tried following a tutorial on an creating a simple Android OCR app. I used a combination of walkthroughs and files from here http://gaut.am/making-an-ocr-android-app-using-tesseract/#comment-184181 and here https://github.com/rmtheis/tess-two. The app loads ok. I take a picture with the app. The image is captured on the screen. At the bottom of the app is a check icon that I'm to click on so that the app can show the text in a text field. However, when I tap on the accept icon, the app crashes. From a series of error messages the first one is:


... failed: dlopen failed: cannot locate symbol "png_set_longjmp_fn" referenced by "liblept.so"...


Can someone help me with why I may be getting this error?


Thanks for any help
 
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