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# Error: error:iscp
Invalid Isolate Scope Definition

    Invalid isolate scope definition for directive '{0}'. Definition: {... {1}: '{2}' ...}

## Description

When declaring isolate scope the scope definition object must be in specific format which starts with mode character (`@&=`) with an optional local name.

    myModule.directive('directiveName', function factory() {
    return {
      ...
      scope: {
        'attrName': '@', // OK
        'attrName2': '=localName', // OK
        'attrName3': 'name',    // ERROR: missing mode @&=
        'attrName4': ' = name', // ERROR: extra spaces
        'attrName5': 'name=',   // ERROR: must be prefixed with @&=
      }
      ...
    }
    });

Please refer to the `scope` option of the directive definition documentation to learn more about the API.