render result is blank

[mikeetsai]

Hi, It's great tutorial that you have provided.
I am having trouble getting the result as on the error log of apache, it says
"Error in pixReadMemJpeg: tmpfile stream not opened
Error in pixReadMem: jpeg: no pix returned
Error during processing."

The images can be successfully upload, but just wonder render the text to the output.

I have also alter a line of code in the code you provided in order to make it work (around line 65 under public/index.php)

// Perform OCR on the uploaded image
$text = $tesseract->executable('/opt/local/bin/tesseract')->run();

I am not sure what does this mean? if you share me some light on this issue?

thanks
Mike