Error in while : missing value where TRUE/FALSE needed
53870
Error in if/while (condition) {: missing Value where TRUE/FALSE needed
34224
What is an "index out of range" exception, and how do I fix it?
89331
Variable does not exist in the current context?
119366
What causes "Missed Method" in this code?
2266
Why is my variable local in one 'while read' loop, but not in another seemingly similar loop?
68464
error in count script for number of occurences
45486
if statement in loop not working
156714
How do I handle nonexistent or missing data?
22190
Is there a "do ... while" loop in Ruby?
86662
How to report an error if an element is missing in the list of lists
114130
Why does a while loop stop after being suspended?
28379
How do I check to see if a text file is empty or does not exist in c++?
89549
Can anyone explain this 'variable does not exist error'?
75918
how to get true or false using execute() in Java Statement
117663
program skips over getline
114169
Why can't we define a variable inside a while loop?
122198
Missing $ inserted