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Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)
...app (runs fine locally) - but I am unable to deploy it via heroku (first time w/ heroku as well). The code is below. SO doesn't let me write so much code, so I would just say that the running the code locally as well within my network shows no issue.
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Join vs. sub-query
...readability of the code, because it is of great importance for later management of it... Let's remember the famous statement of Donald Knuth: "Premature optimization is the root of all evil (or at least most of it) in programming". However, naturally there are programming areas where performance is ...
What is SELF JOIN and when would you use it? [duplicate]
... row, you could self join like this:
select e1.EmployeeID,
e1.FirstName,
e1.LastName,
e1.SupervisorID,
e2.FirstName as SupervisorFirstName,
e2.LastName as SupervisorLastName
from Employee e1
left outer join Employee e2 on e1.SupervisorID = e2.EmployeeID
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Setting DEBUG = False causes 500 Error
...h Django 1.5 has this new section which you need to add:
# Hosts/domain names that are valid for this site; required if DEBUG is False
# See https://docs.djangoproject.com/en/1.9/ref/settings/#allowed-hosts
ALLOWED_HOSTS = []
Add your host here like ['www.beta800.net'] or ['*'] for a quick test, ...
Error installing libv8: ERROR: Failed to build gem native extension
...ou, use the --with-system-v8 option.
For more you can go through the documentation of libv8 on github
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What is going wrong when Visual Studio tells me “xcopy exited with code 4”
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Xcopy exit code 4 means "Initialization error occurred. There is not enough memory or disk space, or you entered an invalid drive name or invalid syntax on the command line."
It looks like Visual Studio is supplying invalid arguments to xcopy...
MySQL Workbench: How to keep the connection alive
...Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MySQL Workbench. Kill your previously query that
probably is running and run the query again.
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How do I set default terminal to terminator? [closed]
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I realize the comment above may not be very readable ... So: after I run the command, default terminal still shows up, eventhough terminator seems to be selected. No difference after reboot.
– Running Turtle
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Git 'fatal: Unable to write new index file'
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configure: error: C compiler cannot create executables
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If you are reading this answer, this is definitely something you should do, but be aware that it will not solve your problem with other packages you are trying to build. So first install the command line tools then see the answer below by @sterescott and that should take care o...