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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...If you are using ubuntu, you have to use the following steps to avoid this error(if there is no replication enabled):
run the command vim /etc/mysql/my.cnf
comment bind-address = 127.0.0.1 using the # symbol
restart your mysql server once.
Update
In Step 1, if you cannot find bind-address in th...
Unrecognized SSL message, plaintext connection? Exception
...
I have the same error, and I solved when I started using http instead of https. But when I place the link in browser with https it works! And I need to perform a safe query. Any idea on how can I solve the problem?
– cc...
Constants in Objective-C
...MY_CONST_2 25. The result is that you may very well end up with a compiler error when it tries to compile 5_2. Do not use #define for constants. Use const for constants.
– ArtOfWarfare
Apr 24 '13 at 14:03
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Eclipse error “ADB server didn't ACK, failed to start daemon”
After updating the SDK, Eclipse shows this error:
22 Answers
22
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Catching an exception while using a Python 'with' statement
... with open( "a.txt" ) as f :
print f.readlines()
except EnvironmentError: # parent of IOError, OSError *and* WindowsError where available
print 'oops'
If you want different handling for errors from the open call vs the working code you could do:
try:
f = open('foo.txt')
except IOE...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...and there are missing precompiled files you will get an "AssetNoPrecompiledError" indicating the name of the missing file.
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Getting “bytes.Buffer does not implement io.Writer” error message
...fer implements io.Writer is
func (b *Buffer) Write(p []byte) (n int, err error) {
...
}
// io.Writer definition
type Writer interface {
Write(p []byte) (n int, err error)
}
It's b *Buffer, not b Buffer. (I also think it is weird for we can call a method by a variable or its pointer, but ...
Reactjs: Unexpected token '
...as writing a simple component to display
li tag and came across this error:
17 Answers
...
Why are we not to throw these exceptions?
...part makes little sense to me. Sure, you should rather avoid causing these errors to begin with, but when you e.g. write an IList implementation, it's not in your power to affect the indices requested, it's the caller's logic mistake when an index is invalid, and you are can only inform them of this...
Moving decimal places over in a double
...se double or float, you should use rounding or expect to see some rounding errors. If you can't do this, use BigDecimal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error.
However, 100 can be represented accurat...