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What is the best way to uninstall gems from a rails3 project?
...ndler:
bundle exec gem uninstall GEM_NAME
Note that this throws
ERROR: While executing gem ... (NoMethodError) undefined method `delete' for #<Bundler::SpecSet:0x00000101142268>
but the gem is actually removed. Next time you run bundle install the gem will be reinstalled.
...
if arguments is equal to this string, define a variable like this string
I am doing some bash script and now I got one variable call source and one array called samples , like this:
3 Answers
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Postgres unique constraint vs index
... master values (0, 0);
INSERT 0 1
test=# insert into master values (0, 1);
ERROR: duplicate key value violates unique constraint "master_con_id_key"
DETAIL: Key (con_id)=(0) already exists.
test=# insert into master values (1, 0);
ERROR: duplicate key value violates unique constraint "master_uniq...
How to install an apk on the emulator in Android Studio?
...that before searching online, duh) worked quickly on the first try without error.
– Christopher Schultz
Jul 28 '16 at 21:48
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Writing outputs to log file and console
... running the user script like log file name and path, redirect outputs and errors to log file, database connection details, etc ) which redirects all the outputs ( echo messages ) and errors to the log file from the executed script using the following code:
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Count with IF condition in MySQL query
I have two tables, one is for news and the other one is for comments and I want to get the count of the comments whose status has been set as approved.
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
...than the x87) makes a reasonable attempt at following IEEE 754 - it's not "error bounds"; there is only one correct answer.
– tc.
Jun 22 '11 at 2:19
14
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Really killing a process in Windows
...ht. Open cmd.exe and run
taskkill /im processname.exe /f
If there is an error saying,
ERROR: The process "process.exe" with PID 1234 could not be
terminated.
Reason: Access is denied.
then try running cmd.exe as administrator.
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Asterisk in function call
I'm using itertools.chain to "flatten" a list of lists in this fashion:
3 Answers
3
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Round a Floating Point Number Down to the Nearest Integer?
...nd the integer range such as 600851475143, it will basically flag a memory error.
– Muyide Ibukun
Jan 20 '16 at 15:26
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