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Using scp to copy a file to Amazon EC2 instance?
...try copy the folder to the root of the system, which would give permission errors on all machines without running sudo (or as root).
– Dobz
Jul 29 '14 at 15:17
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Is null an Object?
...ype null
According to OpenJDKs 12.0.1 javac it is:
true.toString(); // error: boolean cannot be dereferenced
null.toString(); // error: <null> cannot be dereferenced
Where the angle brackets imply that null is of an other than a primitive type. And according to JLS 4.1:
There are tw...
Could not load NIB in bundle
...
the error means that there is no .xib file with "JRProvidersController" name.
recheck whether JRProvidersController.xib exists.
you will load .xib file with
controller = [[JRProvidersController alloc] initWithNibName:@"JRProvid...
Is a successor for TeX/LaTeX in sight? [closed]
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@Joey, it's $2.56 for errors in his technical books, $3.16 for errors in the 3:16 book, and the amount for bugs in TeX and METAFONT started at $2.56 and doubled each year until reaching $327.68.
– Kevin
Oct 6...
Execute Python script via crontab
...e the file appears a message: "/tmp/crontab.JTQ0My/crontab":22: bad minute errors in crontab file, can't install. Do you want to retry the same edit? (y/n)" if I type "y", I've returned to file edit. And if I type "n" the file is not saved. I add this line at last line of the file: "/1 * * * * /usr...
run main class of Maven project [duplicate]
...
Gives error : Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:exec (default-cli) on project srl: Execution default-cli of goal org.codehaus.mojo:exec-maven-plugin:1.5.0:exec failed: Executable can not be empty ->...
How to check which version of v8 is installed with my NodeJS?
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when I type in "node --version" I don't get an error but I also don't get any information... just shows the prompt again. Any idea why?
– geoidesic
Sep 18 '16 at 22:05
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PostgreSQL: Which Datatype should be used for Currency?
... That's not why you avoid floating point. Even Numeric will have rounding errors if you divide by anything that doesn't divide into a power of ten, no matter what precision you use. (Precision of 2 is a Bad Idea anyway... check the docs.)
– Doradus
Jan 9 '18 ...
Customizing the template within a Directive
...rtunately I've found that form validation doesn't seem to work with this, $error flags on the inserted input never get set. I had to do this within a directive's link property: $compile(htmlText)(scope,function(_el){ element.replaceWith(_el); }); in order for the form's controller to recognize its ...
Python syntax for “if a or b or c but not all of them”
...'x', 'y', 'z'])
args = parser.parse_args()
if len(args.abc) != 3:
parser.error('expected 3 arguments')
print(args.abc)
Here are some usage examples:
# default case
wim@wim-zenbook:/tmp$ ./three_or_none.py
['x', 'y', 'z']
# explicit case
wim@wim-zenbook:/tmp$ ./three_or_none.py 1 2 3
['1', '2'...