Object reference not set to an instance of an object on querying from different lists
289
What is a NullReferenceException, and how do I fix it?
101555
Data from multiple lists using single REST API call
39195
Variable scope - database.query() has access to variables not in scope
1605
What is the reason behind "non-static method cannot be referenced from a static context"?
112328
Error: "an object reference is required for the non-static field, method or property..."
53085
How to initialize List object in Java?
157664
SObject row was retrieved via SOQL without querying the requested field: Opportunity.OwnerId
99777
Bug in List.contains for Id data type?
133610
How to access fields from the inner join
126943
Instantiate objects in a List and use it
63508
Trying to get distinct values from two List objects
95476
Accessing data from lists in sub-sites at parent site level
94526
How to get instance of referenced entity?
165
Reference could not be added because of same name
12387
What is "Best Practice" For Comparing Two Instances of a Reference Type?
94016
Why my soql query is returning 'RecordTypeId' instead of the fields mentioned in the query?
55895
Which one is better : Loop with SOQL or create a List then Loop?