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Error type 3 Error: Activity class {} does not exist
...started Android Studio
Rebuild the Project
Run
Optionally (Go to the files m>me m>nu on android, click on "Invalidate Caches / Restart..." uninstall the app on your phone and try again)
And everything worked fine!
I think the key is to restart your IDE.
Hope this helps you or anyone else!
Edit 1:
I...
How to determine whether a substring is in a different string
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with in: substring in string:
>>> substring = "please help m>me m> out"
>>> string = "please help m>me m> out so that I could solve this"
>>> substring in string
True
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Convert String to SecureString
...reString object is to avoid creating a string object (which is loaded into m>me m>mory and kept there in plaintext until garbage collection). However, you can add characters to a SecureString by appending them.
var s = new SecureString();
s.AppendChar('d');
s.AppendChar('u');
s.AppendChar('m');
s.Appen...
ADB Android Device Unauthorized
...ed on ADB for whatever reason.
1. Check if authorized:
<ANDROID_SDK_HOm>ME m>>\platform-tools>adb devices
List of devices attached
4df798d76f98cf6d unauthorized
2. Revoke USB Debugging on phone
If the device is shown as unauthorized, go to the developer options on the phone and click...
Printing tuple with string formatting in Python
So, i have this problem.
I got tuple (1,2,3) which i should print with string formatting.
eg.
14 Answers
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Som>me m> projects cannot be imported because they already exist in the workspace error in Eclipse
I am trying to import a project that m>me m> and my co-worker have been working on.. and keep getting this error after I select-- "import" then "import existing project" then click archive file, and then I click next, and this error com>me m>s up:
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Where is JAVA_HOm>ME m> on macOS Mojave (10.14) to Lion (10.7)?
...ne of the following lines to your ~/.bash_profile file will set the environm>me m>nt variable accordingly.
export JAVA_HOm>ME m>="$(/usr/libexec/java_hom>me m> -v 1.6)"
or
export JAVA_HOm>ME m>="$(/usr/libexec/java_hom>me m> -v 1.7)"
or
export JAVA_HOm>ME m>="$(/usr/libexec/java_hom>me m> -v 1.8)"
Update: added -v flag based on Ji...
FB OpenGraph og:image not pulling images (possibly https?)
First -- I do not believe this is a duplicate issue. I've searched for sam>me m> or similar problems on SO extensively, and due to the nature of troubleshooting before asking, I believe this problem is unique.
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How can I reverse the order of lines in a file?
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BSD tail:
tail -r myfile.txt
Reference: FreeBSD, NetBSD, OpenBSD and OS X manual pages.
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
...ruby-dev
Or, if that doesn't work, depending on your ruby version, run som>me m>thing like:
sudo apt-get install ruby1.9.1-dev
Should fix your problem.
Still not working? Try the following after installing ruby-dev:
sudo apt-get install make
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