I don't know if am wrong

Good morning koders,
I have gone through the process of adding json marker on map and have search the community for it but still am facing a problem, I don’t know if am doing something wrong.

Check here

I think you forget to put this " "

Thanks at the last part is this what you did "}]

I think between the title is simple ’ ’

I will try it

This is the format [{“lat”:36.421,“lng”:28.188,“color”:224,“title”:‘The title’}]
Just replace the numbers and the title

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also missing : in color, and color value cannot be zero i think,

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Still not working

I tried changing it but not working

Go to jsonlint.com and paste the JSON text there and click on the Validate button

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use Do it to debug your blocks
see also tip 4 here App Inventor: How to Learn | Pura Vida Apps