Originally Posted by sramp

Hello
thanks so much for the guide.
I am new with Maemo development and I'm sad to encounter so many problems to develop a qt 4.6.2 application for the N900.
Now I am attempting to follow your instructions, but I encounter this problem :

Originally Posted by Larswad

Thanks for the guide. Just some hints though, in case someone else stumbles in to it.
What I wanted to do was to upgrade the core, network and maemo5 libraries (so I had for the dependencies also install xml, dbus and something else I forgot). The reason was to test my own app on the device since it actually uses the maemo5 features and the other runtime libraries mismatched of course.
Anyway, what happened was a couple of things:
1. The email app. stopped working (just crashed when trying to start it).
2. Battery drop in just a couple of hours, every time after recharging. There were also temporary "freezeups" for a few secs now and then (guess some process was spinning).
EDIT:
3. Oh another thing, don't be surprised when you go into the upgrade manager and it says that it want to upgrade Maemo5 (to the PR1.1.1 release). It take it that this is just because it discovers that some libraries do not match.

So, be aware, things might get instable. Remember you do not have the PR1.2 installed yet.

But, I have just downgraded again, and it seems my mail is working again. I just have to wait and see that the freezings and battery drops are gone too.

Re: How to instal/upgrade QT 4.6 ?
Hello
thanks so much for the guide.
I am new with Maemo development and I'm sad to encounter so many problems to develop a qt 4.6.2 application for the N900.
Now I am attempting to follow your instructions, but I encounter this problem :

Code:

Nokia-N900-51-1:/home/user/MyDocs# dpkg -i libqt4-dev_4.6.2~git20100310-0maemo1\+0m5_armel.deb
(Reading database ... 24963 files and directories currently installed.)
Preparing to replace libqt4-dev 4.6.2~git20100310-0maemo1+0m5 (using libqt4-dev_4.6.2~git20100310-0maemo1+0m5_armel.deb) ...
Unpacking replacement libqt4-dev ...
dpkg: dependency problems prevent configuration of libqt4-dev:
libqt4-dev depends on libgles2-sgx-img-dev; however:
Package libgles2-sgx-img-dev is not installed.
libqt4-dev depends on opengles-sgx-img-common-dev; however:
Package opengles-sgx-img-common-dev is not installed.
libqt4-dev depends on libsqlite3-dev; however:
Package libsqlite3-dev is not installed.
dpkg: error processing libqt4-dev (--install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
libqt4-dev

Please, anybody could point me where to find these packages ?
Thanks

Originally Posted by sramp

Hello
thanks so much for the guide.
I am new with Maemo development and I'm sad to encounter so many problems to develop a qt 4.6.2 application for the N900.
Now I am attempting to follow your instructions, but I encounter this problem :

Code:

Nokia-N900-51-1:/home/user/MyDocs# dpkg -i libqt4-dev_4.6.2~git20100310-0maemo1\+0m5_armel.deb
(Reading database ... 24963 files and directories currently installed.)
Preparing to replace libqt4-dev 4.6.2~git20100310-0maemo1+0m5 (using libqt4-dev_4.6.2~git20100310-0maemo1+0m5_armel.deb) ...
Unpacking replacement libqt4-dev ...
dpkg: dependency problems prevent configuration of libqt4-dev:
 libqt4-dev depends on libgles2-sgx-img-dev; however:
  Package libgles2-sgx-img-dev is not installed.
 libqt4-dev depends on opengles-sgx-img-common-dev; however:
  Package opengles-sgx-img-common-dev is not installed.
 libqt4-dev depends on libsqlite3-dev; however:
  Package libsqlite3-dev is not installed.
dpkg: error processing libqt4-dev (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 libqt4-dev

Please, anybody could point me where to find these packages ?
Thanks