# Power Chart Component Error **URL:** \ **Category:** Ignition\ **Tags:** perspective, ignition81\ **Created:** [April 16, 2025, 10:49pm UTC](https://forum.inductiveautomation.com/t/power-chart-component-error/105206 "2025-04-16T22:49:32Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\ **Post date:** [April 16, 2025, 10:49pm UTC](https://forum.inductiveautomation.com/t/power-chart-component-error/105206/1 "2025-04-16T22:49:32Z")
v: 8.1.47 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/2/228d7a1556a65df7f202409fd2b2ed558b9be9e3.png) I am getting this error on a power chart inserted in my perspective project. If I mouse over the "i" it says `r is not a function`. Jumping into developer view on Chrome shows that it is erroring out in the console: ```python PerspectiveClient.9c627a8669c80572ff27.js:2 No view configured for center mount. Mount definition should contain a property 'viewPath'. render @ PerspectiveClient.9c627a8669c80572ff27.js:2 PerspectiveClient.9c627a8669c80572ff27.js:2 No view configured for center mount. Mount definition should contain a property 'viewPath'. render @ PerspectiveClient.9c627a8669c80572ff27.js:2 react-dom-18.2.0.js:121 TypeError: r is not a function at a (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:471264) at t.value (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:248948) at t.value (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:250034) at PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:249459 at oe.qt (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:1012077) at t.value (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:249414) at t.value (PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:250625) at Af (react-dom-18.2.0.js:133:101) at si (react-dom-18.2.0.js:132:399) at Rk (react-dom-18.2.0.js:252:71) wf @ react-dom-18.2.0.js:121 PerspectiveClient.9c627a8669c80572ff27.js:2 ui.ErrorBoundary: Component error caught in error boundary: {"componentStack":"\n at t (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:246738)\n at g\n at g\n at g\n at t (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:196365)\n at g\n at g\n at t (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:211646)\n at g\n at svg\n at t (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:184623)\n at div\n at div\n at v (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:739463)\n at div\n at div\n at div\n at E (http://localhost:9088/res/perspective/js/PerspectiveTimeseriesCharts.40c492feec84de0c5e12.js:2:687681)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at div\n at M (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:836682)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at q (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:398156)\n at div\n at b (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:1071657)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at div\n at M (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:836682)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at q (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:398156)\n at div\n at b (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:1071657)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at div\n at z (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:788840)\n at div\n at div\n at O (http://localhost:9088/res/perspective/js/PerspectiveComponents.3a469e4949a4af501c00.js:2:783913)\n at d (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:735481)\n at n (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:537222)\n at q (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:398156)\n at div\n at T (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:377089)\n at div\n at div\n at E (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:379985)\n at y (http://localhost:9088/res/perspective/js/PerspectiveClient.9c627a8669c80572ff27.js:2:277016)"} i.cerror @ PerspectiveClient.9c627a8669c80572ff27.js:2 ``` Nothing showing in the gateway logs, and briefly before the error pops up I see the empty power chart with no data visible, it seems to error when it gets the data from historian. Any ideas for troubleshooting? ---
**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\ **Post date:** [April 16, 2025, 11:05pm UTC](https://forum.inductiveautomation.com/t/power-chart-component-error/105206/2 "2025-04-16T23:05:33Z")
Turns out that if you capitalise "CurveLinear" in the pen interpolation properties, the component breaks blindly. ---
**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:** [April 16, 2025, 11:08pm UTC](https://forum.inductiveautomation.com/t/power-chart-component-error/105206/3 "2025-04-16T23:08:27Z")
Yikes, that's a pretty bad failure mode. ---
**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\ **Post date:** [April 16, 2025, 11:13pm UTC](https://forum.inductiveautomation.com/t/power-chart-component-error/105206/4 "2025-04-16T23:13:08Z")
In IA's defence, I found out the issue via the json validator alert triangle at the top of the props pane, which accurately pinpointed the error in my config. That was definitely not where I expected it to be though, and evidently the validator doesn't link to the rendering engine...