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How to add not null constraint to existing column in MySQL
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Oddly I was getting an error (MySQL 5.6, Workbench 6.3) changing/modifying a column I'd named null_heart_rate_count, error was #1138, Invalid use of NULL value. I had to drop and add the column instead.
– William T. Mallard
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Unable to install R package in Ubuntu 11.04 [closed]
... help MAC users. Even though i had all the dependent libraries i still got errors. After a lot a lot of trials this is what saved me- While installing via rstudio using install.packages(), you get a prompt asking -Do you want to install from sources the package which needs compilation? y/n: Give y...
How to print a double with two decimals in Android? [duplicate]
...extView2.setText(form.format(result) );
...cause "NumberFormatException" error in locale for Europe because it sets result as comma instead of point decimal - error occurs when textView is added to number in editText.
Both solutions are working excellent in locale US and UK.
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How to return images in flask response? [duplicate]
...et('type') == '1':
filename = 'ok.gif'
else:
filename = 'error.gif'
return send_file(filename, mimetype='image/gif')
to send back ok.gif or error.gif, depending on the type query parameter. See the documentation for the send_file function and the request object for more infor...
Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
... broken version of RVM. Ubuntu does something to RVM that produces lots of errors, the only safe way of fixing for now is to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM sett...
How to set .net Framework 4.5 version in IIS 7 application pool
.... This helped me to fix an issue with Web Deploy, where it was throwing an ERROR_APPPOOL_VERSION_MISMATCH error after upgrading from v4.0 to v4.5.
MS article on setting .Net version for App Pool
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How to convert integer to string in C? [duplicate]
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I tried running this program, and I got a runtime error. How can I get it to work properly? ideone.com/Xl21B4
– Anderson Green
Mar 6 '13 at 2:56
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jQuery dot in ID selector? [duplicate]
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Not without "": Error: Syntax error, unrecognized expression: p[id=details_it.airgap.vault]`
– Giszmo
Jun 25 at 19:58
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Exported service does not require permission: what does it mean?
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I use Eclipse 4.2.1, and it doesn't add it, giving an error (at least with the default config?). It just says: The prefix "tools" for attribute "tools:ignore" associated with an element type "activity" is not bound, and no choices are given for fixing this.
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Cannot use Server.MapPath
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They not working.... Error 1 The type or namespace name 'HttpContext' does not exist in the namespace 'System.Web' (are you missing an assembly reference?) ... Error 2 The type or namespace name 'Hosting' does not exist in the namespace 'System.W...