I just install SuiteCRM Version 7.11.7 set the file permissions and i cant move, delete or add dashlet i get the following error on the sugar crm log Aug 6 06:51:47
2019 [2623][1][FATAL] Chart class not found.
Tue Aug 6 06:51:48 2019 [2623][1][FATAL] Chart class not found.
Wed Aug 14 16:09:45 2019 [6452][1][FATAL] Chart class not found.
same issue with me also daslet not working.
i solved the issue, files are missing on the following folder include/SugarCharts
copy all the contents from the zip installation file
copy \include\SugarCharts and \jssource\src_files\include\SugarCharts
to your suiteCRM install folder include\SugarChart
if you use chrome you can use the developer console and you will get javascript error of the files missing and just look for those files on the installation zip files
Hi sir, thank you very much,
actually am copy file from SuiteCRM-7.11.7\jssource\src_files\include\SugarCharts\Jit
to C:\xampp\htdocs\zamp\include\SugarCharts\Jit
so now dashlet is working fine from main menu.
but one more problem color graph y axis is not showing in my chart report, x axis is showing ok. i have already check in all types of chart anr report but result is same please help me.
Opened Bug Report - https://github.com/salesagility/SuiteCRM/issues/7748
asked Developers for an authoritative reply 
This is now solved in 7.11.8.
Thanks for reporting!
Thanks for updating this. I was going to do that and link your message that I have just received by Email (I was asleep rather late)!
Kind Regards
regarding y axis: you can check that you have enough records to display multiple bars / graphs. You can’t plot a nice chart from a single entry.