# Script Attribute Error: Object has no attribute 'value' **URL:** \ **Category:** Ignition\ **Tags:** ignition81, scripting\ **Created:** [November 17, 2021, 3:12pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187 "2021-11-17T15:12:21Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Ryan\_Potts](https://avatars.discourse-cdn.com/v4/letter/r/db5fbb/32.png) [@Ryan\_Potts](https://forum.inductiveautomation.com/u/Ryan_Potts)\ **Post date:** [November 17, 2021, 3:12pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/1 "2021-11-17T15:12:21Z")
Just updated from 8.0 to 8.1 and have an issue now with a script that creates a trend for some motors. I have tried to add in different ‘value’ items, but still receive the same error message. Any help is appreciated. ```auto def transform(self, value, quality, timestamp): paths = [path.value for path in value.historyParameters.paths.value] columnNames = [columnName.value for columnName in value.historyParameters.columnNames.value] for pen in self.view.custom.pens: axisName = pen['axis'] penAxis = None for i in range(len(self.view.custome.axes)): axis = self.view.custom.axes[i] if axis['name'] == axisName: penAxis = i break if penAxis is not None and self.view.custom.axes[penAxis]['autoRange']: try: max = system.tag.queryTagHistory(paths=[pen['path']], startDate=value.startDate, endDate=value.endDate, returnSize=1, aggregationMode='Maximum') upperBound = max.getValueAt(0,1) self.view.custom.axes[i]['upperBound'] = upperBound + (1 if upperBound > 0 else -1) min = system.tag.queryTagHistory(paths=[pen['path']], startDate=value.startDate, endDate=value.endDate, returnSize=1, aggregationMode='Minimum') lowerBound = max.getValueAt(0,1) self.view.custom.axes[i]['lowerBound'] = lowerBound + (1 if lowerBound > 0 else -1) except: pass return system.tag.queryTagHistory(paths=paths, columnNames=columnNames, startDate=value.startDate, endDate=value.endDate, returnSize=300, aggregationMode='MinMax') ``` ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [November 17, 2021, 3:20pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/2 "2021-11-17T15:20:44Z")
What are the type of `value.historyParameters.paths` and `value.historyParameters.columnNames` ? ---
**Author:** ![Ryan\_Potts](https://avatars.discourse-cdn.com/v4/letter/r/db5fbb/32.png) [@Ryan\_Potts](https://forum.inductiveautomation.com/u/Ryan_Potts)\ **Post date:** [November 17, 2021, 3:37pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/3 "2021-11-17T15:37:11Z")
They are both system tags. ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [November 17, 2021, 3:40pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/4 "2021-11-17T15:40:43Z")
Can you show us what comes before that transform ? ---
**Author:** ![Ryan\_Potts](https://avatars.discourse-cdn.com/v4/letter/r/db5fbb/32.png) [@Ryan\_Potts](https://forum.inductiveautomation.com/u/Ryan_Potts)\ **Post date:** [November 17, 2021, 3:46pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/5 "2021-11-17T15:46:57Z")
If you mean in the Edit Binding page under Configure Expression Structure Binding it is: ```auto endDate :toMillis({view.custom.dateRange.endDate}) historyParameters :{this.custom.historyParameters} startDate :{view.custom.dateRange.startDate} ``` ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [November 17, 2021, 4:11pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/6 "2021-11-17T16:11:40Z")
What’s the exact error message, and does it include a line number? ---
**Author:** ![Ryan\_Potts](https://avatars.discourse-cdn.com/v4/letter/r/db5fbb/32.png) [@Ryan\_Potts](https://forum.inductiveautomation.com/u/Ryan_Potts)\ **Post date:** [November 17, 2021, 4:22pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/7 "2021-11-17T16:22:53Z")
Here are some screen shots, the top is from Designer with the error triangle on the “Props” title. The second is from the Prespective Project. I do not have an line errors that I have been able to locate. ![Screenshot 2021-11-17 112010](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/8/28d3bddf4d554a70326c12432a155f2e08240cb9.png) Subcode: Error\_ScriptEval ![Screenshot 2021-11-17 102030](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/0/500dcb212735645269fbc4edd8a57eb6d16737ab.png) ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [November 17, 2021, 4:24pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/8 "2021-11-17T16:24:58Z")
> [@Ryan\_Potts](#): > > ```auto > paths = [path.value for path in value.historyParameters.paths.value] > columnNames = [columnName.value for columnName in value.historyParameters.columnNames.value] > > ``` I wonder if it's just these lists? What if you drop the `.value` from e.g. `value.historyParameters.paths.value`? You shouldn't need to worry about getting qualified values from property trees, which might be a change in behavior from the version your script was first written in. ---
**Author:** ![Ryan\_Potts](https://avatars.discourse-cdn.com/v4/letter/r/db5fbb/32.png) [@Ryan\_Potts](https://forum.inductiveautomation.com/u/Ryan_Potts)\ **Post date:** [November 17, 2021, 4:50pm UTC](https://forum.inductiveautomation.com/t/script-attribute-error-object-has-no-attribute-value/53187/9 "2021-11-17T16:50:03Z")
Amazing! Removed the end .value from all of the calls and now it is working properly.