Error on Power Bi Desktop but not on Web Service

[JackSoderstrom]

Following error is presented when running a custom visual in power bi desktop. After packaging the visual with "pviviz package" I am presented with 

Build

After inserting the visual into Power Bi Desktop(Version: 2.95.804.0 64-bit (July, 2021) it imports with no errors then when clicking on the "Format" tab to change options the program crashes and the error is

error on desktop

This visual works perfectly on the web service of power bi, I'm not sure what "hex.match" is referring to in my code as it is not used. Note: the last time this visualization had edits to it were 2 years ago. Im not sure if power bi desktop has changed crucial things to make this not work correctly.

[JackSoderstrom · Accepted solution]

There were issues with my code. The lines that cause this issue have no correlation to the error.

[v-rzhou-msft]

Hi @JackSoderstrom 

What kind of custom visual do you want ? According to your statement, you couldn't use visual format in Power BI Desktop, but in Service it works well. 

Latest version is 2.95.983.0. You can download the latest version of Power BI Desktop and try again.

Click here to download: Download

Error in your screenshot is hex.match is not a function. Please check your code, find hex in your code.

The error goes away if you explicitly convert to a string. Code looks like String(hex).match.

Here is a post with similar error like yours: JavaScript error: “val.match is not a function”

Best Regards,

Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.