Bootstrap 3.3.6 JQuery 2.2.4 Version Exception

Question

I am trying to use Bootstrap and JQuery in my new ASP.Net Core application. But I encounter the error \"Bootstrap\'s JavaScript requires jQuery version 1.9.1 or higher, but

Answer 1

We found that the root of the problem is git.exe from C:\Program Files (x86)\Microsoft Visual Studio 14.0\Web\External\git which is not a real Git but some sort of a wrapper.

With it, bower tries to install correct versions, but if you look into the bower cache you can see that actual downloaded files don't match.

Example:

C:\Program Files (x86)\Microsoft Visual Studio 14.0\Web\External>

bower install jquery#2.2.4
bower jquery#2.2.4          not-cached https://github.com/jquery/jquery-dist.git#2.2.4
bower jquery#2.2.4             resolve https://github.com/jquery/jquery-dist.git#2.2.4
bower jquery#2.2.4            checkout 2.2.4
bower jquery#2.2.4            resolved https://github.com/jquery/jquery-dist.git#2.2.4
bower jquery#2.2.4             install jquery#2.2.4

jquery#2.2.4 bower_components\jquery

Check the contents of "%USERPROFILE%\AppData\Local\bower\cache\packages\35300e45e44dbc6f186ed069533ef0af\2.2.4\dist\jquery.js":

/*eslint-disable no-unused-vars*/
/*!
 * jQuery JavaScript Library v3.1.0

Solution:

1. Install Git for Windows
2. Delete %USERPROFILE%\AppData\Local\bower
3. Restart Visual Studio
4. Delete wwwroot/lib and Restore bower packages

Update: You might also need to adjust VS external web tools settings

Answer 2

Delete the Lib forder on the wwwroot and run bower install, ensure that in your bower.json file you have the version of jquery that you want.

Answer 3

As pointed out by Phil, this is caused by Visual Studio's built in Bower support. When using this, it seems to download a different version of JQuery.

To fix this, I just used the proper Bower client and installed my packages through the console.