I just installed ubuntu 11.10 from a usb stick.

SCCM12R2 App Installed - Install Uninstall Greyed Out. Via Software Center), and uninstall works as. And have the device install it from SCCM if it was. Because I know there is a bug in the GUI that if you change tab to the 'Installed Software' tab, the first selected item will have the button greyed out. If you have two softwares, just click on the second and then click back on the first and suddenly the uninstall button is available. Nov 14, 2017 - SCCM 2. 2 R2 application uninstall button is grayed out. An application cannot be uninstalled using Software Center when it contains more.

After installation, none of the software which I had collected and run on 11.10 or 11.04 runs on it. Even my newly downloaded opera or chrome installations does not work.

I do not have a internet connection.

Whenever i try to install any .deb file by double clicking it,software center opens up but the install button is grayed out.

closed as off-topic by Braiam, BuZZ-dEE, Warren Hill, mikewhatever, Florian DieschJan 23 '14 at 20:23

This question appears to be off-topic. The users who voted to close gave this specific reason:

• 'Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues.' – Braiam, BuZZ-dEE, Warren Hill, mikewhatever, Florian Diesch

6 Answers

Gdebi package manager is removed from default application set and unfortunately softwarecentre also stopped offline installation support from Oneric (but install option in the menu may still work)so you have to use command line for offline installation.

try this

The button is greyed out because a deb package doesn't contain all dependencies; they still need to be downloaded from the internet.
Deb packages usually only contain the files from the application itself, but not the other packages the program needs to work correctly. They're just referenced to in a text file inside the package.

You might want to give this a try:
http://www.webupd8.org/2011/12/portable-software-center-create-custom.html
You'll still have to install python-glade2 first though.

I know..old post (and I wrote a lot, in hopes a reader cares why), but 'greyed out install and remove buttons' / no reviews / no screen caps wasn't just driving me nuts; it's been annoying a lot of people. There are numerous irrelevant answers and altruistic guesses out there, even advice to give up on Ubuntu Software Center (USC) despite comments that Synaptic can be a good way to screw up your system..because the real issue is that you need USC not to care about the network state (especially when it's clearly wrong).

The most common fix appears to be Patches/Update USC/etc, and monitoring for errors by starting USC from a terminal (I had none), but for me and many others it looks like it's Network Connections. It didn't help that I answered the installer's 'which interface is your primary' question thinking it was temporary, which turned out to be permanent (forcing me to edit /etc/network/interfaces), but I installed 'Wicd network manager' because Network Connections was broken anyway. After this, USC always thought I was offline (so? I should be able to remove stuff, or install downloads). While you can always use the 'File' menu in USC, it's counterintuitive for it to work when the same buttons are all disabled.

Skip the following paragraph if you never got a network connection of any sort.

With one, you can do a simple sanity check: If you are using another network manager (like Wicd or have edited /etc/network/interfaces) see if Network Connections needs a kick. Right-click its panel icon (an 'up'/'down' arrow side-by-side. Google for how to put it there if it's missing). With USC open, try choosing 'auto' for whatever interface is working just fine, and viola!--USC immediately enables the 'install' and 'remove' buttons. If this breaks your connection, you can use 'dhclient', restart networking, use the menus, or maybe just restart (I'm not writing a network setup answer, so restarting should put you back where you were).

Regardless of online or offline, once I knew it was Network Connections, I found a post from Doctoa that says to run this in a terminal:

sudo stop network-manager

From https://askubuntu.com/users/68386/doctoa at UBUNTU's Network Connection Manger can't detect Huawei ETS2051 Modem device!

In case this isn't a fix, remember that the 'File' menu in USC still works despite what Network Connections thinks.

Run software-center from the Terminal, you should see the errors, this should point you to the more specific issues of your problem.

Also see:

I encountered the same problem. Restarting the network manager helped me.

or simply you can try

I use a dongle to connect to the internet. For this I use gnome-ppp. Gnome-ppp do not signals the network manager that the system is connected with the internet. This creates a problem in system application like Software center. So restarting the network manager will surely help you in this case.

Not the answer you're looking for? Browse other questions tagged software-center or ask your own question.

It is a common question in Forums why Uninstall button is disabled in Software Centre :

There are quite interesting things needs to know the reason behind it :

1) If the software is deployed as 'required' , it is not possible to uninstall from Software Centre. However the user can go to Programs and Features to uninstall it. But the software come back as installed after the next Application Deployment Evaluation Cycle if it is not able to detect it.

2) If the software is deployed as 'Available' then the uninstall button will be shown in software centre once the application is installed successfully. This button is used to uninstall the application without requiring administrative permissions for the available deployment based application. There is a known issue that if the MSI application doesn't have a uninstall cmdline then uninstall button is not valid but currently it is enabled.

3) If the software is created using Package/Program then it mayn't be valid.

Thanks

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