When I was trying to use eclipse on Fedora 26 I faced many errors related to GTK 3. Following are some of the errors I saw. These were observed in Mars2, Oxygen and also in Neon.
(Eclipse:11437): Gtk-WARNING **: Allocating size to SwtFixed 0x7fef3992f2d0 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?
(Eclipse:13633): Gtk-WARNING **: Negative content width -1 (allocation 1, extents 1x1) while allocating gadget (node trough, owner GtkProgressBar)
(Eclipse:13795): Gtk-WARNING **: Negative content width -1 (allocation 1, extents 1x1) while allocating gadget (node trough, owner GtkProgressBar)
(Eclipse:13795): Gtk-CRITICAL **: gtk_distribute_natural_allocation: assertion 'extra_space >= 0' failed
All above issues are caused by GTK 3. So as a solution for this issues what we can do is force eclipse to use GTK2. Following is how you can do this.
To force GTK2, simply export the following environment variable.
1 2 3 4 | #Export Following export SWT_GTK3=0 #Start Eclipse using the same terminal session ./eclipse |
If you want to force eclipse to use GTK3 you can simply change the variable as follows SWT_GTK3=1
Thanks for reading and please drop a comment if you have any queries.
