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E11000 duplicate key error index in mongodb mongoose
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The error message is saying that there's already a record with null as the email. In other words, you already have a user without an email address.
The relevant documentation for this:
If a document does not have a value for the index...
The server committed a protocol violation. Section=ResponseStatusLine ERROR
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The same can be placed inside <configuration> root tag at the App.copnfig for non-web applications (for example, I fixed WPF app that way - thanks!).
– Yury Schkatula
Aug 20 '13 at 15:39...
Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY
...hello.apk
pkg: /tmp/hello.apk
Success
I was able to reproduce the same issue and the above solved it.
If your APK is outside the device (on your desktop), then below command would do it:
$ adb install -t hello.apk
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Can't start Eclipse - Java was started but returned exit code=13
I am trying to get my first taste of Android development using Eclipse. I ran into this problem when trying to run Eclipse, having installed version 4.2 only minutes ago.
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How to get Chrome to allow mixed content?
Chrome browser by default is blocking mixed content. How do I adjust my settings/configuration to allow mixed content without making any adjustments on the UI every time?
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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du
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Undo git reset --hard with uncommitted files in the staging area
...rder to add a file to the index, git adds it to the object database, which means it can be recovered so long as garbage collection hasn't happened yet. There's an example of how to do this given in Jakub Narębski's answer here:
Recovering added file after doing git reset --hard HEAD^
However, ...
Not receiving Google OAuth refresh token
...Google API says that to get the access token, send the code and other parameters to token generating page, and the response will be a JSON Object like :
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How to insert a line break before an element using CSS
...y, using the CSS content property, to insert a line break tag before an element. Obviously this doesn't work:
15 Answers
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