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“R cannot be resolved to a variable”? [duplicate]
...nd, huh? :) If you can't get R.java to build in the first place, it's usually a typo or other problem in an XML layout file. Using a capital letter in your XML filenames will also cause that problem. If R.java does exist but variables in it aren't recognized by just one Java file, for instance, ...
What does “not run” mean in R help pages?
...ul, e.g., for
interactive functions, functions
accessing the Internet etc.. Do not
misuse it to make life easier for you
by giving examples which cannot be
executed.
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How to check if a string contains a substring in Bash
...egex in a bash script, this worked perfectly!
– blast_hardcheese
Feb 14 '12 at 5:10
114
The =~ op...
sqlalchemy IS NOT NULL select
...
column_obj != None will produce a IS NOT NULL constraint:
In a column context, produces the clause a != b. If the target is None, produces a IS NOT NULL.
or use isnot() (new in 0.7.9):
Implement the IS NOT operator.
...
How do I browse an old revision of a Subversion repository through the web view?
...ted into this answer, which is otherwise misleading: you do NOT stick !svn/etc... onto the end of your URL. (1) find your Repository Root by svn info . (2) after that append /!svn/bc/<revision_number>/ (3) then append the path to your directory or file, if any.
– Bob Stei...
How to define @Value as optional
...swered Jan 8 '18 at 13:23
alonso_50alonso_50
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How can I add to List
...Number > means ? could be of any type extending Number(Integer, Double, etc) and its not clearified in declaration ( List < ? extends Number > list ) that which of them it is, so when u wanna use add method its not known if the input is of the same type or not; what is the type at all?
So ...
Volley Android Networking Library
... I had to go to 5 different google results to find the instructions to install their own networking library.
– Gowiem
Aug 28 '13 at 18:19
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Check if Python Package is installed
What's a good way to check if a package is installed while within a Python script? I know it's easy from the interpreter, but I need to do it within a script.
...
Auto margins don't center image in page
...ow. (display:block or display:table, position:static or position:relative, etc.)
– Phrogz
Apr 20 '11 at 17:26
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