https://community.blueprism.com/t5/Product-Forum/Error-In-Regex-Match-Attribute/m-p/69290#M21895 I am trying to match an element in a Chrome browser window using a RegEx attribute match type. Specifically, I know that a decimal number with a fixed format will be on the screen and I want to read its value, so I'm passing the RegEx \d{1,3}\,\d{1} as attribute match value. When I highlight the element in the application modeler, it works fine, and even using a Read stage in the Object Studio on the element works perfectly. But when I try to check the existence of the element using a wait stage, with a Check Exists condition, I consistently get the error "Internal : AMI error occurred in [...] - Subquery must be followed by one of "=", "=", "", "%=" "^=" "$= I have attached a pdf with screenshots of the application modeler, the properties window from the object studio and the error message box. While the process is functional now, I would like to add the existence check for good measure and most of all I would like to understand why this error is occurring :) Could somebody please help me fix this? Wed, 15 Nov 2017 21:19:00 GMT WimLogister 2017-11-15T21:19:00Z https://community.blueprism.com/t5/Product-Forum/Error-In-Regex-Match-Attribute/m-p/69290#M21895 I am trying to match an element in a Chrome browser window using a RegEx attribute match type. Specifically, I know that a decimal number with a fixed format will be on the screen and I want to read its value, so I'm passing the RegEx \d{1,3}\,\d{1} as attribute match value. When I highlight the element in the application modeler, it works fine, and even using a Read stage in the Object Studio on the element works perfectly. But when I try to check the existence of the element using a wait stage, with a Check Exists condition, I consistently get the error "Internal : AMI error occurred in [...] - Subquery must be followed by one of "=", "=", "", "%=" "^=" "$= I have attached a pdf with screenshots of the application modeler, the properties window from the object studio and the error message box. While the process is functional now, I would like to add the existence check for good measure and most of all I would like to understand why this error is occurring :) Could somebody please help me fix this? Wed, 15 Nov 2017 21:19:00 GMT https://community.blueprism.com/t5/Product-Forum/Error-In-Regex-Match-Attribute/m-p/69290#M21895 WimLogister 2017-11-15T21:19:00Z https://community.blueprism.com/t5/Product-Forum/Error-In-Regex-Match-Attribute/m-p/69291#M21896 Getting the same problem. Tue, 01 May 2018 19:14:00 GMT https://community.blueprism.com/t5/Product-Forum/Error-In-Regex-Match-Attribute/m-p/69291#M21896 JesperHededam 2018-05-01T19:14:00Z