Update issue-template.md

Author: singerdmx

.github/ISSUE_TEMPLATE/issue-template.md

@@ -11,6 +11,7 @@ My issue is about [Web]
 My issue is about [Mobile]
 My issue is about [Desktop]
 
-I have tried running `example` directory successfully before creating an issue here.
+I have tried running `example` directory successfully before creating an issue here. 
+
+Please note that we are using <b>latest</b> flutter version in stable channel on branch master. If you are using beta or master channel, or you are not using <b>latest</b> flutter version in stable channel, you may experience error.
 
-Please note that we are using stable channel on branch master. If you are using beta or master channel, use branch dev.