Application crash: QAcessibleInterface and segmentation fault - pointers

I have this application bundled on Os X 10.11 El Capitan with Qt 5.5, and runs justfine on the development machine. It also works on Os X Yosemite 10.10.5. The app crashes on all other machines that have Os X 10.11 El Capitan. Here is part of the Error log:
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
VM Regions Near 0:
-->
__TEXT 000000010acca000-000000010b06b000 [ 3716K] r-x/rwx SM=COW /Volumes/VOLUME/WaveAnalyser.app/Contents/MacOS/WaveAnalyser
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 QtGui 0x000000010b83bc9a QAccessible::uniqueId(QAccessibleInterface*) + 106
1 libqcocoa.dylib 0x000000010e73b961 QCocoaAccessibility::notifyAccessibilityUpdate(QAccessibleEvent*) + 17
2 QtWidgets 0x000000010b3dac5f QAbstractItemViewPrivate::_q_rowsInserted(QModelIndex const&, int, int) + 127
3 QtWidgets 0x000000010b3dce36 QAbstractItemView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) + 1510
4 QtCore 0x000000010bf0ac26 QMetaObject::activate(QObject*, int, int, void**) + 2550
5 QtCore 0x000000010bf80d2e QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) + 78
6 QtCore 0x000000010be8eea0 QAbstractItemModel::endInsertRows() + 80
7 QtGui 0x000000010baffb07 QStandardItemModelPrivate::rowsInserted(QStandardItem*, int, int) + 151
8 QtGui 0x000000010baffec6 QStandardItemPrivate::insertRows(int, int, QList<QStandardItem*> const&) + 934
9 QtGui 0x000000010bb0351b QStandardItemModel::appendRow(QList<QStandardItem*> const&) + 75
The problem shows up when I press the pushbutton that closes the QMainWindow. I can provide complete log to track down the problem.

Related

JavaFx Scenebuilder.exe won't start and it looks like the included JVM won't run. How can I fix it?

Scenebuilder.exe will not start on my new PC either from IntelliJ, Windows explorer, or command line. It gives no errors and terminates instantly. On a hunch I tried running the included JVM in
C:\Program Files\SceneBuilder\runtime\bin
java --version
I get the log below and it shows an access exception that looks like a bug in the underlying JVM itself, not in the execution of the SceneBuilder code. I've been running JDK 11 on this AMD Ryzen just fine, and there are no DLLs sneaking in that do not belong there. I need help, thanks!
C:\Program Files\SceneBuilder\runtime\bin>java --version
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e3bf8f29, pid=12296, tid=11532
#
# JRE version: (11.0.1+13) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS, mixed mode, aot, sharing, tiered, compressed oops, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x1e8f29]
#
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Tim\AppData\Local\Temp\\hs_err_pid12296.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
C:\Program Files\SceneBuilder\runtime\bin>type C:\Users\Tim\AppData\Local\Temp\\hs_err_pid12296.log
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e3bf8f29, pid=12296, tid=11532
#
# JRE version: (11.0.1+13) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS, mixed mode, aot, sharing, tiered, compressed oops, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x1e8f29]
#
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
--------------- S U M M A R Y ------------
Command Line:
Host: AMD Ryzen 5 2600 Six-Core Processor , 12 cores, 15G, Windows 10 , 64 bit Build 18362 (10.0.18362.778)
Time: Sat Apr 25 09:02:07 2020 Eastern Daylight Time elapsed time: 0 seconds (0d 0h 0m 0s)
--------------- T H R E A D ---------------
Current thread (0x000002312e8c6000): JavaThread "Unknown thread" [_thread_in_vm, id=11532, stack(0x0000005029100000,0x0000005029200000)]
Stack: [0x0000005029100000,0x0000005029200000], sp=0x00000050291feee0, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x1e8f29]
V [jvm.dll+0x1e73d3]
V [jvm.dll+0x37524b]
V [jvm.dll+0x7394a9]
V [jvm.dll+0x3e467d]
V [jvm.dll+0x3e6951]
C [java.exe+0x3603]
C [java.exe+0x178dc]
C [KERNEL32.DLL+0x17bd4]
C [ntdll.dll+0x6ce51]
siginfo: EXCEPTION_ACCESS_VIOLATION (0xc0000005), reading address 0x0000000000000000
Registers:
RAX=0x0000a780aacf8fcc, RBX=0x0000000000000000, RCX=0x0000000000000000, RDX=0x0000000000000006
RSP=0x00000050291feee0, RBP=0x0000000000000000, RSI=0x000002312e8c6000, RDI=0x0000000000000000
R8 =0x0000000000000006, R9 =0x0000000000000006, R10=0x0000000000000006, R11=0x00000050291fe750
R12=0x0000000000000000, R13=0x00007ff8e3ff6d90, R14=0x000002312c602d98, R15=0x00000050291ff938
RIP=0x00007ff8e3bf8f29, EFLAGS=0x0000000000010256
Top of Stack: (sp=0x00000050291feee0)
0x00000050291feee0: 000002312c60db10 00007ff94e71c6c0
0x00000050291feef0: 00000050291ff938 000002312c602d98
0x00000050291fef00: 0000000000000000 0000000000000400
0x00000050291fef10: 00006181910f784b 00007ff8e3ff6d90
0x00000050291fef20: 0000000000000000 00000050291ff938
0x00000050291fef30: 000002312c602d98 00007ff8e3ff6d90
0x00000050291fef40: 0000000000000000 00007ff92e470000
0x00000050291fef50: 00007ff8e4282558 0000000000000000
0x00000050291fef60: 00007ff8e3bf7277 00007ff94e6d1b1c
0x00000050291fef70: 0000000000000000 00007ff8e40745dd
0x00000050291fef80: 0000a780aacf8fcc 000002312c602d98
0x00000050291fef90: 00007ff800000000 00007ff8e3ff6d90
0x00000050291fefa0: 000002312e8c6000 00000050291ff0c0
0x00000050291fefb0: 0000000000000000 00007ff8e3bf73d3
0x00000050291fefc0: 00007ff92e450000 00007ff92e47d088
0x00000050291fefd0: 00000050291ff0c0 000002312e8c6000
Instructions: (pc=0x00007ff8e3bf8f29)
0x00007ff8e3bf8f09: b8 00 00 00 48 8b 05 bc 40 85 00 48 33 c4 48 89
0x00007ff8e3bf8f19: 84 24 a0 00 00 00 48 8b e9 48 83 cb ff 48 ff c3
0x00007ff8e3bf8f29: 80 3c 0b 00 75 f7 33 f6 c6 44 24 30 01 40 38 35
0x00007ff8e3bf8f39: c2 62 88 00 74 17 40 38 35 a3 c9 87 00 75 0e 33
--------------- P R O C E S S ---------------
Threads class SMR info:
_java_thread_list=0x000002312c602d50, length=0, elements={
}
Java Threads: ( => current thread )
Other Threads:
[error occurred during error reporting (printing all threads), id 0xc0000005, EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e414e1fd]
VM state:not at safepoint (not fully initialized)
VM Mutex/Monitor currently owned by a thread: None
[error occurred during error reporting (printing compressed oops mode), id 0xc0000005, EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e4163b67]
Deoptimization events (0 events):
No events
Classes redefined (0 events):
No events
Internal exceptions (0 events):
No events
Events (0 events):
No events
Dynamic libraries:
0x00007ff6af5a0000 - 0x00007ff6af5e7000 C:\Program Files\SceneBuilder\runtime\bin\java.exe
0x00007ff9512e0000 - 0x00007ff9514d0000 C:\WINDOWS\SYSTEM32\ntdll.dll
0x00007ff950230000 - 0x00007ff9502e2000 C:\WINDOWS\System32\KERNEL32.DLL
0x00007ff94e6c0000 - 0x00007ff94e963000 C:\WINDOWS\System32\KERNELBASE.dll
0x00007ff94fb00000 - 0x00007ff94fba3000 C:\WINDOWS\System32\ADVAPI32.dll
0x00007ff9502f0000 - 0x00007ff95038e000 C:\WINDOWS\System32\msvcrt.dll
0x00007ff951200000 - 0x00007ff951297000 C:\WINDOWS\System32\sechost.dll
0x00007ff94f9e0000 - 0x00007ff94fb00000 C:\WINDOWS\System32\RPCRT4.dll
0x00007ff94f390000 - 0x00007ff94f524000 C:\WINDOWS\System32\USER32.dll
0x00007ff94f2e0000 - 0x00007ff94f301000 C:\WINDOWS\System32\win32u.dll
0x00007ff94f530000 - 0x00007ff94f556000 C:\WINDOWS\System32\GDI32.dll
0x00007ff94e520000 - 0x00007ff94e6b4000 C:\WINDOWS\System32\gdi32full.dll
0x00007ff94f240000 - 0x00007ff94f2de000 C:\WINDOWS\System32\msvcp_win.dll
0x00007ff94e270000 - 0x00007ff94e36a000 C:\WINDOWS\System32\ucrtbase.dll
0x00007ff942260000 - 0x00007ff9424e5000 C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.18362.778_none_e6c6b761130d4fb8\COMCTL32.dll
0x00007ff947e60000 - 0x00007ff947e6a000 C:\WINDOWS\SYSTEM32\VERSION.dll
0x00007ff94f640000 - 0x00007ff94f976000 C:\WINDOWS\System32\combase.dll
0x00007ff94e370000 - 0x00007ff94e3f0000 C:\WINDOWS\System32\bcryptPrimitives.dll
0x00007ff950df0000 - 0x00007ff950e1e000 C:\WINDOWS\System32\IMM32.DLL
0x00007ff94aa90000 - 0x00007ff94aaa6000 C:\Program Files\SceneBuilder\runtime\bin\vcruntime140.dll
0x00007ff932a30000 - 0x00007ff932ada000 C:\Program Files\SceneBuilder\runtime\bin\msvcp140.dll
0x00007ff8e3a10000 - 0x00007ff8e4552000 C:\Program Files\SceneBuilder\runtime\bin\server\jvm.dll
0x00007ff950220000 - 0x00007ff950228000 C:\WINDOWS\System32\PSAPI.DLL
0x00007ff94ae30000 - 0x00007ff94ae54000 C:\WINDOWS\SYSTEM32\WINMM.dll
0x00007ff93c080000 - 0x00007ff93c089000 C:\WINDOWS\SYSTEM32\WSOCK32.dll
0x00007ff950d80000 - 0x00007ff950def000 C:\WINDOWS\System32\WS2_32.dll
0x00007ff94ae00000 - 0x00007ff94ae2d000 C:\WINDOWS\SYSTEM32\WINMMBASE.dll
0x00007ff94e4d0000 - 0x00007ff94e51a000 C:\WINDOWS\System32\cfgmgr32.dll
0x00007ff94e250000 - 0x00007ff94e261000 C:\WINDOWS\System32\kernel.appcore.dll
0x00007ff94a980000 - 0x00007ff94a991000 C:\Program Files\SceneBuilder\runtime\bin\verify.dll
0x00007ff93d1a0000 - 0x00007ff93d394000 C:\WINDOWS\SYSTEM32\DBGHELP.DLL
0x00007ff93cf30000 - 0x00007ff93cf5a000 C:\WINDOWS\SYSTEM32\dbgcore.DLL
0x00007ff92e470000 - 0x00007ff92e499000 C:\Program Files\SceneBuilder\runtime\bin\java.dll
0x00007ff92e450000 - 0x00007ff92e466000 C:\Program Files\SceneBuilder\runtime\bin\zip.dll
0x00007ff94aa80000 - 0x00007ff94aa8a000 C:\Program Files\SceneBuilder\runtime\bin\jimage.dll
dbghelp: loaded successfully - version: 4.0.5 - missing functions: none
symbol engine: initialized successfully - sym options: 0x614 - pdb path: .;C:\Program Files\SceneBuilder\runtime\bin;C:\WINDOWS\SYSTEM32;C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.18362.778_none_e6c6b761130d4fb8;C:\Program Files\SceneBuilder\runtime\bin\server
VM Arguments:
java_command: <unknown>
java_class_path (initial): <not set>
Launcher Type: SUN_STANDARD
[Global flags]
uint G1ConcRefinementThreads = 10 {product} {ergonomic}
uintx GCDrainStackTargetSize = 64 {product} {ergonomic}
size_t InitialHeapSize = 267632960 {product} {ergonomic}
size_t MaxHeapSize = 4282127360 {product} {ergonomic}
uintx ReservedCodeCacheSize = 251658240 {pd product} {ergonomic}
bool SegmentedCodeCache = true {product} {ergonomic}
bool UseCompressedClassPointers = true {lp64_product} {ergonomic}
bool UseCompressedOops = true {lp64_product} {ergonomic}
bool UseG1GC = true {product} {ergonomic}
bool UseLargePagesIndividualAllocation = false {pd product} {ergonomic}
Logging:
Log output configuration:
#0: stdout all=warning uptime,level,tags
#1: stderr all=off uptime,level,tags
Environment Variables:
JAVA_HOME=C:\Users\Tim\jdk-13.0.2
PATH=...
USERNAME=Tim
OS=Windows_NT
PROCESSOR_IDENTIFIER=AMD64 Family 23 Model 8 Stepping 2, AuthenticAMD
--------------- S Y S T E M ---------------
OS: Windows 10 , 64 bit Build 18362 (10.0.18362.778)
CPU:total 12 (initial active 12)
Memory: 4k page, system-wide physical 16335M (7401M free)
TotalPageFile size 38863M (AvailPageFile size 26823M)
current process WorkingSet (physical memory assigned to process): 8M, peak: 8M
current process commit charge ("private bytes"): 3M, peak: 3M
vm_info: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS) for windows-amd64 JRE (11.0.1+13-LTS), built on Oct 6 2018 13:20:16 by "mach5one" with MS VC++ 15.5 (VS2017)
END.

MvvmCross Could not find a Setup class for application

I have an Xamarin Forms Android Application with MvvmCross and I see several of these exceptions in my insights.
When the app starts from scratch everything works fine. As far as I can tell this error happens, wenn the app is moved to hibernation and is started again.
I have a SplashScreenActivity which defines the Setup class as follows:
MvxFormsSplashScreenActivity<ApplicationSetup, CoreApp, App>
In case it helps, the Project is open source and the code lies here: https://github.com/MoneyFox/MoneyFox
How can I fix that?
Error:
Package: com.applysolutions.moneyfox
Version Code: 2019099001
Version Name: 5.1.2019099.001
Android: 9
Android Build: PQ2A.190405.003
Manufacturer: Google
Model: Pixel 3
CrashReporter Key: c69e70df-a610-4112-be05-e3869f130474
Date: undefined
Xamarin Exception Stack:
MvvmCross.Exceptions.MvxException: Failed to create setup instance
at MvvmCross.Core.MvxSetupSingleton.CreateSetup () [0x00017] in <5379a95ac98a4680b7bb47f5b716a158>:0
at MvvmCross.Core.MvxSetupSingleton.EnsureSingletonAvailable[TMvxSetupSingleton] () [0x00045] in <5379a95ac98a4680b7bb47f5b716a158>:0
at MvvmCross.Platforms.Android.Core.MvxAndroidSetupSingleton.EnsureSingletonAvailable (Android.Content.Context applicationContext) [0x00000] in <5379a95ac98a4680b7bb47f5b716a158>:0
at MvvmCross.Forms.Platforms.Android.Views.MvxFormsAppCompatActivity.OnCreate (Android.OS.Bundle bundle) [0x00006] in <4ea0c9ab37e14fd8aa188ddf8fa8736e>:0
at MoneyFox.Droid.MainActivity.OnCreate (Android.OS.Bundle bundle) [0x00052] in <2cfc40e7b7be4d839b84f168044b373f>:0
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState) [0x00011] in <8ac02975c09144d5ae9c10aecc6be0c2>:0
at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.9(intptr,intptr,intptr)
--- End of inner exception stack trace ---
MvvmCross.Exceptions.MvxException: Could not find a Setup class for application
at MvvmCross.Core.MvxSetupExtensions.CreateSetup[TSetup] () [0x00019] in <5379a95ac98a4680b7bb47f5b716a158>:0
at MvvmCross.Core.MvxSetup.Instance () [0x00015] in <5379a95ac98a4680b7bb47f5b716a158>:0
at MvvmCross.Core.MvxSetupSingleton.CreateSetup () [0x00000] in <5379a95ac98a4680b7bb47f5b716a158>:0
Thread 2:
0 dalvik.system.VMStack.getThreadStackTrace(VMStack.java:-2)
1 java.lang.Thread.getStackTrace(Thread.java:1538)
2 java.lang.Thread.getAllStackTraces(Thread.java:1588)
3 com.microsoft.appcenter.crashes.Crashes.saveUncaughtException(Crashes.java:943)
4 com.microsoft.appcenter.crashes.WrapperSdkExceptionManager.saveWrapperException(WrapperSdkExceptionManager.java:50)
5 md5a0013181b845adff0c8407b475a96272.MainActivity.n_onCreate(MainActivity.java:-2)
6 md5a0013181b845adff0c8407b475a96272.MainActivity.onCreate(MainActivity.java:30)
7 android.app.Activity.performCreate(Activity.java:7144)
8 android.app.Activity.performCreate(Activity.java:7135)
9 android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
10 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2931)
11 android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3086)
12 android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
13 android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
14 android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
15 android.app.ActivityThread$H.handleMessage(ActivityThread.java:1816)
16 android.os.Handler.dispatchMessage(Handler.java:106)
17 android.os.Looper.loop(Looper.java:193)
18 android.app.ActivityThread.main(ActivityThread.java:6718)
19 java.lang.reflect.Method.invoke(Method.java:-2)
20 com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
21 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Thread 6698:
0 java.lang.Object.wait(Object.java:-2)
1 java.lang.Daemons$ReferenceQueueDaemon.runInternal(Daemons.java:178)
2 java.lang.Daemons$Daemon.run(Daemons.java:103)
3 java.lang.Thread.run(Thread.java:764)
Thread 6699:
0 java.lang.Object.wait(Object.java:-2)
1 java.lang.Object.wait(Object.java:422)
2 java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:188)
3 java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:209)
4 java.lang.Daemons$FinalizerDaemon.runInternal(Daemons.java:232)
5 java.lang.Daemons$Daemon.run(Daemons.java:103)
6 java.lang.Thread.run(Thread.java:764)
Thread 6700:
0 java.lang.Thread.sleep(Thread.java:-2)
1 java.lang.Thread.sleep(Thread.java:373)
2 java.lang.Thread.sleep(Thread.java:314)
3 java.lang.Daemons$FinalizerWatchdogDaemon.sleepFor(Daemons.java:342)
4 java.lang.Daemons$FinalizerWatchdogDaemon.waitForFinalization(Daemons.java:364)
5 java.lang.Daemons$FinalizerWatchdogDaemon.runInternal(Daemons.java:281)
6 java.lang.Daemons$Daemon.run(Daemons.java:103)
7 java.lang.Thread.run(Thread.java:764)
Thread 6707:
0 android.os.MessageQueue.nativePollOnce(MessageQueue.java:-2)
1 android.os.MessageQueue.next(MessageQueue.java:326)
2 android.os.Looper.loop(Looper.java:160)
3 android.os.HandlerThread.run(HandlerThread.java:65)
Thread 6709:
0 android.os.MessageQueue.nativePollOnce(MessageQueue.java:-2)
1 android.os.MessageQueue.next(MessageQueue.java:326)
2 android.os.Looper.loop(Looper.java:160)
3 android.os.HandlerThread.run(HandlerThread.java:65)
Thread 6710:
0 android.os.MessageQueue.nativePollOnce(MessageQueue.java:-2)
1 android.os.MessageQueue.next(MessageQueue.java:326)
2 android.os.Looper.loop(Looper.java:160)
3 android.os.HandlerThread.run(HandlerThread.java:65)
EDIT: I tried if it behaves differently, when I deactivate linking. But that didn't have an effect.

rpy2 Installed But Won't Run Packages

I've been able to install rpy2 via conda:
conda install -c r rpy2
However, the only function that works is:
import rpy2
I confirm I'm running:
rpy v 2.9.0
3.5.2 |Anaconda custom (64-bit)| (default, Jul 5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]
Window 10
Error example:
from rpy2 import robjects
---------------------------------------------------------------------------
OSError Traceback (most recent call last)
<ipython-input-46-1f019d00d232> in <module>()
----> 1 from rpy2 import robjects
C:\Users\cfeld\AppData\Local\Continuum\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.5-win-amd64.egg\rpy2\robjects\__init__.py in <module>()
14 import itertools
15 from datetime import datetime
---> 16 import rpy2.rinterface as rinterface
17 import rpy2.rlike.container as rlc
18
C:\Users\cfeld\AppData\Local\Continuum\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.5-win-amd64.egg\rpy2\rinterface\__init__.py in <module>()
43
44 if sys.platform == 'win32':
---> 45 _load_r_dll(R_HOME)
46
47 # cleanup the namespace
C:\Users\cfeld\AppData\Local\Continuum\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.5-win-amd64.egg\rpy2\rinterface\__init__.py in _load_r_dll(r_home)
27 if r_bin not in os.environ.get('PATH'):
28 os.environ['PATH'] = ';'.join((os.environ.get('PATH'), r_bin, r_mod))
---> 29 ctypes.CDLL(r_dll)
30
31 R_HOME = get_r_home()
C:\Users\cfeld\AppData\Local\Continuum\Anaconda3\lib\ctypes\__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error)
345
346 if handle is None:
--> 347 self._handle = _dlopen(self._name, mode)
348 else:
349 self._handle = handle
OSError: [WinError 126] The specified module could not be found
Any suggestions?

%R magic no longer works in IPython or Jupyter following update to Canopy Ver 1.7.4.3348

Previously %R and %%R magics were working in IPython and Jupyter python notebooks.
The R terminal version is:
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-apple-darwin13.4.0 (64-bit)
After upgrading to Version 1.7.4.3348 in Enthought Canopy, the notebooks and IPython no longer work. I have tried reinstalling following Installing RKernel and http://irkernel.github.io/installation/, which worked before. I run the command to load the R-extension as per
%load_ext rpy2.ipython
I get the error message as follows:
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-2-691c6d73b073> in <module>()
----> 1 get_ipython().magic(u'load_ext rpy2.ipython')
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in magic(self, arg_s)
2161 magic_name, _, magic_arg_s = arg_s.partition(' ')
2162 magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
-> 2163 return self.run_line_magic(magic_name, magic_arg_s)
2164
2165 #-------------------------------------------------------------------------
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in run_line_magic(self, magic_name, line)
2082 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals
2083 with self.builtin_trap:
-> 2084 result = fn(*args,**kwargs)
2085 return result
2086
<decorator-gen-64> in load_ext(self, module_str)
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/core/magic.pyc in <lambda>(f, *a, **k)
191 # but it's overkill for just that one bit of state.
192 def magic_deco(arg):
--> 193 call = lambda f, *a, **k: f(*a, **k)
194
195 if callable(arg):
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/core/magics/extension.pyc in load_ext(self, module_str)
64 if not module_str:
65 raise UsageError('Missing module name.')
---> 66 res = self.shell.extension_manager.load_extension(module_str)
67
68 if res == 'already loaded':
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/core/extensions.pyc in load_extension(self, module_str)
82 if module_str not in sys.modules:
83 with prepended_to_syspath(self.ipython_extension_dir):
---> 84 __import__(module_str)
85 mod = sys.modules[module_str]
86 if self._call_load_ipython_extension(mod):
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/rpy2/ipython/__init__.py in <module>()
----> 1 from .rmagic import load_ipython_extension
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/rpy2/ipython/rmagic.py in <module>()
57 template_converter = ro.conversion.converter
58 try:
---> 59 from rpy2.robjects import pandas2ri as baseconversion
60 template_converter = template_converter + baseconversion.converter
61 except ImportError:
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/rpy2/robjects/pandas2ri.py in <module>()
7 INTSXP)
8
----> 9 from pandas.core.frame import DataFrame as PandasDataFrame
10 from pandas.core.series import Series as PandasSeries
11 from pandas.core.index import Index as PandasIndex
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/pandas/__init__.py in <module>()
20
21 # numpy compat
---> 22 from pandas.compat.numpy_compat import *
23
24 try:
/Users/Llewelyn_home/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/pandas/compat/numpy_compat.py in <module>()
13
14 # numpy versioning
---> 15 _np_version = np.version.short_version
16 _np_version_under1p8 = LooseVersion(_np_version) < '1.8'
17 _np_version_under1p9 = LooseVersion(_np_version) < '1.9'
AttributeError: 'module' object has no attribute 'version'
Could it be related to Canopy version of numpy being listed as 1.10.4-1 and the np.version result being 1.11.1 (based on error message)? Any suggestions gratefully received. PS. R works in the console still, plus in terminal and in Jupyter with an R kernel...
The support crew at Enthought examined the version of numpy, then pandas. Reinstalling both did not solve the problem. The unexplained resolution occurred from the pip install theano --upgrade command on the Canopy Terminal. Logging this error as an unexplained issue with %R but with the strong indication that it is about dependency version.

Issues running rmagic in IPython - Yosemite

I'm currently having issues trying to load rmagic into IPython since I upgraded to OSX Yosemite.
I'm using the following command:
%load_ext rmagic
Below is the error I'm getting, and I'm not sure if it's because I upgraded to Yosemite or because I'm trying to load R incorrectly. I've pasted all the Traceback in case that's useful, but the error ends in
ImportError: cannot import name conversion
My R version is 3.1.1
My Python version is 2.7.6
My IPython version is 2.3.0
Not sure what version rpy2 is, but I only downloaded it a few days ago so I assume it's the latest.
ImportError Traceback (most recent call last)
<ipython-input-7-691c6d73b073> in <module>()
----> 1 get_ipython().magic(u'load_ext rpy2.ipython')
/Library/Python/2.7/site-packages/IPython/core/interactiveshell.pyc in magic(self, arg_s)
2203 magic_name, _, magic_arg_s = arg_s.partition(' ')
2204 magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
-> 2205 return self.run_line_magic(magic_name, magic_arg_s)
2206
2207 #-------------------------------------------------------------------------
/Library/Python/2.7/site-packages/IPython/core/interactiveshell.pyc in run_line_magic(self, magic_name, line)
2124 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals
2125 with self.builtin_trap:
-> 2126 result = fn(*args,**kwargs)
2127 return result
2128
/Library/Python/2.7/site-packages/IPython/core/magics/extension.pyc in load_ext(self, module_str)
/Library/Python/2.7/site-packages/IPython/core/magic.pyc in <lambda>(f, *a, **k)
191 # but it's overkill for just that one bit of state.
192 def magic_deco(arg):
--> 193 call = lambda f, *a, **k: f(*a, **k)
194
195 if callable(arg):
/Library/Python/2.7/site-packages/IPython/core/magics/extension.pyc in load_ext(self, module_str)
61 if not module_str:
62 raise UsageError('Missing module name.')
---> 63 res = self.shell.extension_manager.load_extension(module_str)
64
65 if res == 'already loaded':
/Library/Python/2.7/site-packages/IPython/core/extensions.pyc in load_extension(self, module_str)
96 if module_str not in sys.modules:
97 with prepended_to_syspath(self.ipython_extension_dir):
---> 98 __import__(module_str)
99 mod = sys.modules[module_str]
100 if self._call_load_ipython_extension(mod):
/Library/Python/2.7/site-packages/rpy2/ipython/__init__.py in <module>()
----> 1 from .rmagic import load_ipython_extension
/Library/Python/2.7/site-packages/rpy2/ipython/rmagic.py in <module>()
51
52 import rpy2.rinterface as ri
---> 53 import rpy2.robjects as ro
54 import rpy2.robjects.packages as rpacks
55
/Library/Python/2.7/site-packages/rpy2/robjects/__init__.py in <module>()
16 import rpy2.rlike.container as rlc
17
---> 18 from rpy2.robjects.robject import RObjectMixin, RObject
19 from rpy2.robjects.vectors import *
20 from rpy2.robjects.functions import Function, SignatureTranslatedFunction
/Library/Python/2.7/site-packages/rpy2/robjects/robject.py in <module>()
5 rpy2.rinterface.initr()
6
----> 7 from . import conversion
8
9 class RObjectMixin(object):
ImportError: cannot import name conversion
Minrk had it right - uninstalling and reinstalling rpy2 fixed my problem. Not sure why I didn't think of that before! Thanks.

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