Dependency issue trying to install php-mbstring on ec2

Question

I am trying to install yii2 on my Amazon Linux AMI instance, it requires the php-mbstring extension to work.

When I tried to run sudo yum install php-mbstring it returned this error:

Error: php56-common conflicts with php-common-5.3.29-1.8.amzn1.x86_64

Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest                                         | 2.1 kB     00:00
amzn-updates/latest                                      | 2.3 kB     00:00
2494 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package php-mbstring.x86_64 0:5.3.29-1.8.amzn1 will be installed
--> Processing Dependency: php-common(x86-64) = 5.3.29-1.8.amzn1 for package: php-mbstring-5.3.29-1.8.amzn1.x86_64
--> Running transaction check
---> Package php-common.x86_64 0:5.3.29-1.8.amzn1 will be installed
--> Processing Conflict: php56-common-5.6.9-1.112.amzn1.x86_64 conflicts php-common < 5.5.22-1.98
--> Finished Dependency Resolution
Error: php56-common conflicts with php-common-5.3.29-1.8.amzn1.x86_64
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest

Thanks for your time in advance

5.5 and 5.3?... And 5.6? Can you not find packages with matching versions? — ficuscr, Jul 02 '15 at 17:15
On Amazon Linux, PHP versions from 5.4 and on are set up to run side by side. Use alternatives to set the active version. — datasage, Jul 02 '15 at 17:29

score 85 · Accepted Answer · edited May 23 '17 at 12:18

85

It seems you have php 5.6 installed.
You need to install mbstring for that particular version of php.

Run sudo yum install php56-mbstring

After that it might be a good idea to restart apache (thanks! @hexicle),
using sudo service httpd restart

edited May 23 '17 at 12:18

Community

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answered Jul 02 '15 at 17:16

Alex Andrei

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other commands that might help. `yum search`, `yum list installed`, `man yum`. – ficuscr Jul 02 '15 at 17:17
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I had to restart the server for mbstring to kick in. `sudo service httpd restart` – hexicle Mar 04 '17 at 14:18
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And if you are on PHP 7 `sudo yum install php70-mbstring` – Bernard Lechler Sep 22 '17 at 16:38
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And if you are on PHP 7.2 `sudo yum install php72-mbstring` – Ganesh K Jul 15 '18 at 10:07

score 2 · Answer 2 · edited Nov 07 '17 at 22:32

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Amazon Linux AMI release 2017.09

sudo yum install php70-mysqlnd
sudo service httpd restart

edited Nov 07 '17 at 22:32

Paul Roub

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answered Nov 07 '17 at 22:28

Victorio Berra

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Dependency issue trying to install php-mbstring on ec2

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