PHP8

diff --git a/File/Convert/Solution.php b/File/Convert/Solution.php
index 96ff455..586174b 100644 (file)
--- a/File/Convert/Solution.php
+++ b/File/Convert/Solution.php
@@ -47,7 +47,7 @@ class File_Convert_Solution
         $ret = `$cmd`;
         $this->debug("RETURNED:  $ret");
         $this->cmd = $cmd ."\n" . $ret;
-        return $ret;
+        return !is_string($ret) ? '' : $ret;
     }
     
     function count() // ??? why!?