When uploading a set of admittedly large images using NextGEN Gallery to my WordPress site I exceeded my web hosts default memory usage allocation for PHP applications. The error was:

Follow thumbnails could not created. sample.jpg (Error : Exceed Memory limit. Require : 80.65 MByte)

This issue can be resolved by increasing the memory usage allocation at a per-plugin level for PHP applications that require more grunt than others. It’s quick and easy!

1. Open an FTP connection to your root WordPress directory
2. Open /wp-content/plugins/nextgen-gallery/lib/thumbnail.inc.php (mine is gd.thumbnail.inc.php) with your favourite text editor (e.g. UltraEdit, etc.)
3. On line #168 un-comment (remove the //) from before @ini_set('memory_limit', '128M');
4. Save and upload changes
5. Delete image/s that failed to generate a thumbnail and re-upload using NextGEN Gallery’s standard Upload Images feature

If you find 128MB is too ‘conservative’ this can be increased again to any figure of your liking, I find 128MB appropriate for most commercial and personal usage but if you’re a HD photographer then you’re going to hit this limit very quickly… that’s it!

When I added “letter-spacing:1px” for the div container of NextGen Gallery (either in ablum view or gallery view), the middle line of the view disappearred. After removing letter-spacing, the problem was solved.

<SCRIPT LANGUAGE=”JavaScript”>
function locateHome() {
curUrl=location.href;
homeUrl=”<?php bloginfo(‘url’)?>/”;
homeEnUrl=”<?php bloginfo(‘url’)?>/?lang=en”;
homeZhUrl=”<?php bloginfo(‘url’)?>/?lang=zh”;
if(navigator.userAgent.indexOf(“MSIE”)>0) {
if ((curUrl==homeUrl) || (curUrl==homeEnUrl) || (curUrl==homeZhUrl)){
homeClass=nav.getElementsByTagName(“li”)[0].getAttribute(‘className’);
homeClass=homeClass+” current_page_item”;
nav.getElementsByTagName(“li”)[0].setAttribute(‘className’,homeClass);
}
}else {
if ((curUrl==homeUrl) || (curUrl==homeEnUrl) || (curUrl==homeZhUrl)){
homeClass=document.getElementById(“nav”).getElementsByTagName(“li”)[0].getAttribute(“class”);
homeClass=homeClass+” current_page_item”; //alert(“2″+homeClass);
document.getElementById(“nav”).getElementsByTagName(“li”)[0].setAttribute(“class”,homeClass);
}
}
locateHome();
</SCRIPT>

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