# QgroundControl not show UI

**URL:** <https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089>\
**Category:** QGroundControl\
**Created:** [June 10, 2020, 10:44am UTC](https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089 "2020-06-10T10:44:36Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Paan](https://discuss.px4.io/letter_avatar_proxy/v4/letter/p/7cd45c/32.png) [@Paan](https://discuss.px4.io/u/Paan)\
**Post date:** [June 10, 2020, 10:44am UTC](https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089/1 "2020-06-10T10:44:36Z")

</div>

Hi from some days, after QT update (QT 5.15) the QgroundControl not show the UI. When i try to launch I get this errors

```
qrc:/qml/MainRootWindow.qml:25:1: Type ApplicationWindow unavailable
file:///usr/lib/qt/qml/QtQuick/Controls.2/qmldir: plugin cannot be loaded for module "QtQuick.Controls": Cannot install type 'VerticalHeaderView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'HorizontalHeaderView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install element 'SplitHandle' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'SplitView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install element 'Overlay' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'MenuBarItem' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'MenuBar' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ActionGroup' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Action' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ScrollView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'DelayButton' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ToolSeparator' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'RoundButton' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'MenuSeparator' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'DialogButtonBox' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Dialog' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Tumbler' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ToolTip' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ToolButton' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ToolBar' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'TextField' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'TextArea' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'TabButton' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'TabBar' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'SwitchDelegate' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Switch' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'SwipeView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'SwipeDelegate' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'StackView' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'SpinBox' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Slider' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ScrollIndicator' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ScrollBar' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'RangeSlider' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'RadioDelegate' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'RadioButton' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ProgressBar' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Popup' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Pane' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'PageIndicator' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Page' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'MenuItem' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Menu' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Label' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ItemDelegate' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'GroupBox' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Frame' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Drawer' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Dial' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Control' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Container' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ComboBox' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'CheckDelegate' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'CheckBox' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ButtonGroup' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'Button' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'BusyIndicator' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'ApplicationWindow' into protected module 'QtQuick.Controls' version '2'
<Unknown File>: Cannot install type 'AbstractButton' into protected module 'QtQuick.Controls' version '2'
qt.positioning.geoclue2: Unable to obtain the client patch: "org.freedesktop.DBus.Error.ServiceUnknownThe name org.freedesktop.GeoClue2 was not provided by any .service files"

```

I’m not sure if is a qgroundcontrol problems or qt but other qt applications work without problems

---

<div class="post-metadata">

**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [June 11, 2020, 4:56am UTC](https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089/2 "2020-06-11T04:56:45Z")

</div>

Are you using a version of Qt you built yourself or downloaded from the QGC web site? What version are you using and how are you launching QGC?

---

<div class="post-metadata">

**Author:** ![Paan](https://discuss.px4.io/letter_avatar_proxy/v4/letter/p/7cd45c/32.png) [@Paan](https://discuss.px4.io/u/Paan)\
**Post date:** [June 11, 2020, 1:20pm UTC](https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089/3 "2020-06-11T13:20:42Z")

</div>

The Qt(Qt 5.15.0) has been downloaded from my distro repo. I downloaded QGC from the github repository and tried to build the master and qt\_5\_15 but in both cases I had the same problem. The steps I performed for the build are the following:

> after git clone in build-dir  
> qmake …/qgroundcontrol.pro -spec linux-g++ CONFIG+=qtquickcompiler  
> make -j4  
> ./release/qgroundcontrol-start.sh

Before the Qt update everything worked perfectly.

---

<div class="post-metadata">

**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [June 11, 2020, 5:14pm UTC](https://discuss.px4.io/t/qgroundcontrol-not-show-ui/17089/4 "2020-06-11T17:14:32Z")

</div>

As stated in the dev guide: \* **Qt version:** 5.12.6 **(only)**