Invalid type for implements System.Schedulable Class [closed]

Question

I have the following class which I try to schedule from the anonymous window but this gives the error:

invalid type:abc_RiskSchedulerProcessor

Class

global class abc_RiskSchedulerProcessor implements System.Schedulable {
    global abc_RiskSchedulerProcessor() {

    }
    global void execute(System.SchedulableContext SC) {

    }
}

Anonymous window

Datetime sysTime = System.now();
sysTime = sysTime.addSeconds(5);
String chron_exp = '' 
                   + sysTime.second() + ' ' 
                   + sysTime.minute() + ' ' 
                   + sysTime.hour() + ' '
                   + sysTime.day() + ' ' 
                   + sysTime.month() + ' ? ' + sysTime.year();
abc_RiskSchedulerProcessor scheduler = new abc_RiskSchedulerProcessor();
System.schedule('RiskScheduler', chron_exp, scheduler);

Answer 1

In Apex Code, a class in a managed package has a "namespace." This is a prefix used by the platform to allow a managed package to have the same class name (and other things, like objects, fields, triggers, etc) as a class in your org. To use such a class in Apex, you need to include its namespace prefix. You can find this detail on the class' detail page, or by querying the ApexClass object. Once you find the namespace, you need to add it in your code:

Datetime sysTime = System.now();
sysTime = sysTime.addSeconds(5);
String chron_exp = '' 
                   + sysTime.second() + ' ' 
                   + sysTime.minute() + ' ' 
                   + sysTime.hour() + ' '
                   + sysTime.day() + ' ' 
                   + sysTime.month() + ' ? ' + sysTime.year();
theNS.abc_RiskSchedulerProcessor scheduler = new theNS.abc_RiskSchedulerProcessor();
System.schedule('RiskScheduler', chron_exp, scheduler);

Where theNS is the namespace of the class.