我在运行gWidgets2Qt
包的演示时遇到了这个错误:
> demo(gWidgets2Qt)
demo(gWidgets2Qt)
---- ~~~~~~~~~~~
Type <Return> to start :
> ## run examples
> require(gWidgets2)
> options(guiToolkit="Qt")
> ## run examples
> source(system.file("examples", "run_examples.R", package="gWidgets2"))
Error in envRefSetField(x, what, refObjectClass(x), selfEnv, value) :
‘.visible’ is not a field in class “GWindow”
请同时检查这个问题,我刚刚询问了会话信息,以及cranvas
我认为可能与上述有关的包中出现的类似错误。非常感谢。
编辑:
按照@jverzani 的提示,我尝试了一个有效的简单代码。然后我做了一些测试:
我在拆包时得到这个
detach("package:gWidgets2Qt", unload=TRUE)
There were 50 or more warnings (use warnings() to see the first 50)
> warnings()
Warning messages:
1: In FUN(X[[2L]], ...) :
Created a package name, ‘2013-05-23 07:40:37’, when none found
尝试重新加载并运行演示,但仍然没有工作我重新启动了 ubuntu 并再次尝试
library(gWidgets2Qt)
demo(gWidgets2Qt)
它运行正确,我只收到 ex-graphics.R 示例的错误,该示例在第一次尝试时无法运行并出现此错误:
Error in qsceneDevice(width, height, pointsize, family, the_scene) :
unused argument (the_scene)
In addition: Warning message:
In .removePreviousCoerce(class1, class2, where, prevIs) :
methods currently exist for coercing from “AlternativeSingleEnum” to “character”; they will be replaced.
Error in qinvoke(<environment>, "initScene", ...) :
Implementation failed for method 'R::gWidgets2Qt::QtDevice::initScene'
这个在下一个attmpts:
Error in qsceneDevice(width, height, pointsize, family, the_scene) :
unused argument (the_scene)
Error in qinvoke(<environment>, "initScene", ...) :
Implementation failed for method 'R::gWidgets2Qt::QtDevice::initScene'
但是所有其他示例都有效。但是,一旦我加载 cranvas,
> library(cranvas)
Attaching package: ‘cranvas’
The following object is masked from ‘package:gWidgets2’:
visible, visible<-
demo(gWidgets2Qt)
再次失败并分离cranvas
> detach("package:cranvas", unload=TRUE)
There were 50 or more warnings (use warnings() to see the first 50)
> warnings()
Warning messages:
1: In FUN(X[[2L]], ...) :
Created a package name, ‘2013-05-23 08:37:43’, when none found
demo(gWidgets2Qt)
再次运行。这种不兼容已经看到了吗?这取决于invisible
被掩盖gWidgets2
吗?