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What does “Object reference not set to an instance of an object” mean? [duplicate]
... is a very common error and can occur because of all kinds of reasons. The root cause really depends on the specific scenario that you've encountered.
If you are using an API or invoking methods that may return null then it's important to handle this gracefully. The main method above can be modifie...
How do I resize an image using PIL and maintain its aspect ratio?
...ed Aug 11 '13 at 18:46
Jonathan Root
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answered Nov 7 '08 at 23:15
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Unable to execute dex: Multiple dex files define
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The root cause of the problem was that one of the library was using nineoldandroid library as a jar stored in the ./libs dir , while another project was using nineoldandroid by referencing it
– Deepika Lalra...
How to remove .html from URL?
...move the .html extension from your urls, you can use the following code in root/htaccess :
RewriteEngine on
RewriteCond %{THE_REQUEST} /([^.]+)\.html [NC]
RewriteRule ^ /%1 [NC,L,R]
RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule ^ %{REQUEST_URI}.html [NC,L]
NOTE: If you want to remove any...
System.MissingMethodException: Method not found?
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I just ran into this on a .NET MVC project. The root cause was conflicting versions of NuGet packages. I had a solution with several projects. Each of the projects had some NuGet packages. In one project I had a version of the Enterprise Library Semantic Logging package...
How can I check if a string is null or empty in PowerShell?
... of saying it may not be a whitespace, some remove commands might remove a root folder instead of a subfolder if the subfolder name is a "white space", all the reason not to accept a string containing whitespaces in many cases.
I find this is the best way to accomplish it:
$STR1 = $null
IF ([strin...
is there an virtual environment for node.js?
...u're in a directory of a project that has a node_modules/ directory in the root, you can type nodebin and then you can use all the commands that are in the .bin/ directory!
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Why is printing “B” dramatically slower than printing “#”?
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edited Mar 3 at 6:14
ROOT
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answered Sep 5 '19 at 5:25
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How do I use 'git reset --hard HEAD' to revert to a previous commit? [duplicate]
...untracked files, where as git-clean will remove any files from the tracked root directory that are not under Git tracking.
Alternatively, as @Paul Betts said, you can do this (beware though - that removes all ignored files too)
git clean -df
git clean -xdf CAUTION! This will also delete ignored f...
Build unsigned APK file with Android Studio
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Task 'assemble' not found in root project 'bin'.
– nVentimiglia
Aug 10 '15 at 19:23
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