apexexecute-anonymoususeruserinfo
I dont know what is the problem. When I am trying to use UserInfo.getUserName() in my main org it doesnt work and gives me error like in title, but in another org it works perfectly. What can I do? So maybe there are some settings enabled?
UserInfo.getUserName()
This code works for me. I think you have some class with same name "JSON" and it is giving you error. After you use namespace it will works. because Namespace remove the conflict between classes. Check your organization code and if possible try to change the class name it will solve your problem.
@Update: I test this in same instance.
Rather than selemeter.name that references the value of the field, use the SobjectField reference:
.... = TER_Meter__c.name.getDescribe();
This is the way to find out general (metadata) information about the field such as its maximum length or its data type.
If you want the length of the data in that field in a record it would be:
Integer meterNameLength = selmeter.name.length();
or if the name can ever be null:
Integer meterNameLength = selmeter.name != null ? selmeter.name.length() : 0;
Best Answer
This error, in respect to standard library methods, is always a result of name shadowing, assuming you have the correct parameters; the only other time you should get this error is if you have the wrong number or data types of parameters (e.g. passing in a String when an Integer is expected).
Basically, you have either a variable, class, or interface named
UserInfo(case insensitive) in the org where you're having the problem. The fix is to either (a) refactor or remove theUserInfoclass/variable/interface so it's no longer conflicting, or (b) useSystem.UserInfo.getUserName()instead, which is always guaranteed to reference the library method, sinceSystemis a reserved keyword.As a matter of practicality, I advise refactoring over using the
Systemnamespace, because this is likely to come up over and over again as more developers work on your code.