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Can't find the 'libpq-fe.h header when trying to install pg gem
...SQL, but the problem is installing the pg gem. It gives me the following error:
41 Answers
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Is there a way to make GHC provide the type class constraints of typed holes?
...vious in GHCi. With your example,
> show _
<interactive>:7:6: error:
• Found hole: _h :: ()
Or perhaps ‘_h’ is mis-spelled, or not in scope
• In the first argument of ‘show’, namely ‘_h’
In the expression: show _h
In an equation for ‘it’: it...
解决：Failed to load JavaHL Library（windows及mac） - 更多技术 - 清泛...
...vaHL Library（windows及mac）Failed to load JavaHL Library.These are the errors that were encountered:no libsvnjavahl-1 in java.library.pathno sv...Failed to load JavaHL Library.
These are the errors that were encountered:
no libsvnjavahl-1 in java.library.path
no svnjavahl-1 in java.library.pa...
Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
..., O_RDWR | O_TRUNC);
}
}
if (fd < 0) {
printf("Open file failed, error : %s", strerror(errno));
exit(1);
}
// 将该文件锁定,锁定后的文件将不能够再次锁定
struct flock fl;
fl.l_type = F_WRLCK; // 写文件锁定
fl.l_start = 0;
fl.l_whence = SEEK_SET;
fl...
Will writeToFile:atomically: overwrite data?
...ails, and the original file is intact. As writeToFile does not return an NSError, how can I investigate the failure? it may be a permissions issue, but I can't be sure. My code runs as an Installer Plugin Bundle, for an installation package that demands root privileges -- I don't know how to verify/...
How to parse date string to Date? [duplicate]
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Nope, still throwing same error, I've tried with zzz too and no luck. I'm going to check the doc now, thanks for the link.
– Meow
Dec 21 '10 at 5:00
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NullPointerException in Java with no StackTrace
...sing log4j. I discovered (inadvertently) a place where I had written
LOG.error(exc);
instead of the typical
LOG.error("Some informative message", e);
through laziness or perhaps just not thinking about it. The unfortunate part of this is that it doesn't behave as you expect. The logger API ...
SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
...
ERROR: rvm update has been removed. See 'rvm get' and rvm 'rubygems' CLI API instead
– yang
Apr 13 '14 at 5:10
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What's the fastest way to convert String to Number in JavaScript?
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I think 1* is preferred because it is less error prone. A unwanted dangling variable before +1 is not a parsing error. It is a trick similar to using if (MYCONSTANT == myvar) in C.
– Tomas
Nov 6 '13 at 14:22
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What does “javascript:void(0)” mean?
...function. It needs a value to operate on to its right, or it will throw an error.
– Breton
Aug 18 '09 at 5:59
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