Fatal error: Cannot use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Bool as Bool because ‘Bool’ is a special class

When you update your PHP version and you can see the above issue while working in the Expression Engine. I just commented out the following at core\EllisLab\ExpressionEngine\Library\Parser\Conditional\Lexer.php the boolean and string annotations:

use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Token;
//use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Bool;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Comment;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Number;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Operator;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Other;
//use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\String;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Tag;
use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Variable;

and following on the same file the bool part and the string part

switch ($type)
    //case 'BOOL':	 $obj = new Bool($lexeme);
    //	break;
    case 'COMMENT':	 $obj = new Comment($lexeme);
    case 'NUMBER':	 $obj = new Number($lexeme);
    case 'OPERATOR': $obj = new Operator($lexeme);
    case 'OTHER':	 $obj = new Other($lexeme);
    //case 'STRING':	 $obj = new String($lexeme);
    //	break;
    case 'TAG':		 $obj = new Tag($lexeme);
    case 'VARIABLE': $obj = new Variable($lexeme);
        $obj = new Token($type, $lexeme);

I disable the string part also because I get the following issues as well:
Fatal error: Cannot use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\String as String because ‘String’ is a special class name

Then I commented out following \core\EllisLab\ExpressionEngine\Library\Parser\Conditional\Parser.php

//use EllisLab\ExpressionEngine\Library\Parser\Conditional\Token\Bool;

With these two file changes above error is removed but I have not gone too deep issues inside it, make changes in your own risk 🙂

Previous articleDrupal error white user page, the design is showing in the index page, database contents are not showing in eCommerce website
Next articleOpenCart Module Development Video Tutorial Introduction and Table of Contents


Please enter your comment!
Please enter your name here