diff --git a/library/SimplePie.php b/library/SimplePie.php
index <HASH>..<HASH> 100755
--- a/library/SimplePie.php
+++ b/library/SimplePie.php
@@ -1294,6 +1294,7 @@ class SimplePie
 		// Check absolute bare minimum requirements.
 		if (!extension_loaded('xml') || !extension_loaded('pcre'))
 		{
+			$this->error = 'XML or PCRE extensions not loaded!';
 			return false;
 		}
 		// Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
Error message when XML or PCRE extensions missing

The XML extension is not loaded by default on PHP7. Relevant to have the
reason of failure in the error message instead of returning an empty
error message.
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