Phonertc demo only shows blank screen when call is started - objective-c

I am using the phonertc demo project on iOS platform. The setup is done properly and app is deployed on iphone and iPad. But when I am calling a peer it just shows blank screen in the video controller div on the page. I am not sure what is happening, not able to get the code work. Please suggest!

Have you followed the steps in the Wiki for running the an PhoneRTC app on an iOS device:
(https://github.com/alongubkin/phonertc/wiki/Installation)
For iOS, follow these steps:
Go platforms/ios and click on [ProjectName].xcodeproj to open it with
XCode Go to your project settings In General, change Deployment Target
to 7.0 or above Go to Build Settings and change:
a. Valid Architectures => armv7
b. Build Active Architecture Only => No
c. Runpath Search Paths => $(inherited) #executable_path/Frameworks
d. Objective-C Bridging Header =>
[ProjectName]/Plugins/com.dooble.phonertc/Bridging-Header.h
e. Embedded content contains Swift Code => yes
Repeat steps 4a. - 4c. for the CordovaLib project
Make sure your build target is an actual iPhone or iPad running on the
arm7 architecture. The iPhone and iPad simulators are not emulators,
and only run on i386. The compiled RTC libraries for ios have been
built for arm7.

Related

Could not build module GoogleMobileAds on ios 6.1

I am trying to create a demo ios project based on https://developers.google.com/mobile-ads-sdk/docs/admob/ios/quick-start
Everything works if i choose iphone 5 simulator to build and run the app, but when i try building the project for my ipod touch 4g (ios 6.1), it doesn't build and gives error "Could not build module GoogleMobileAds"
i am importing the mobile as :
#import GoogleMobileAds;
I am using GoogleMobileAds SDK version 7.2.1 .
Looking for the solution.
Thanks!
I have done following things it works fine.
goto build settings and say yes to always search user path.
then put your google mobile ads local path on frame work search path.

Xcode 6 and Embedded Frameworks only supported in iOS8

When using an embedded framework (dyld) in Xcode 6.0.1 with deployment target less that iOS 8 I get:
Build is successful
Runtime library loading error
Error:
dyld: Library not loaded: #rpath/ObjectiveLyricsTouch2.framework/ObjectiveLyricsTouch2
Referenced from: /private/var/mobile/Containers/Bundle/Application/DC65ACA9-98E5-46CD-95F8-829D3416F6C0/musiXmatch.app/musiXmatch
Reason: image not found
(lldb)
For some time I was thinking that this is my problem as well, but for normal apps (non-iOS-8-extension) you just need to change one build setting in your casual Xcode 6 iOS Universal Framework target (set Mach-O Type to Static Library):
There should be no problem with iTunes Connect and iOS 7 after that :)
So,
after digging around I came out with the solution
Supposed to have yours MyEmbeddedFramework.framework to add to the app, do this
Remove MyEmbeddedFramework.framework in the tab General > Embedded Binaries
Remove the Build Phases > Copy Phase "Frameworks" if you have MyEmbeddedFramework.framework there.
Clean Build Folder
Move the MyEmbeddedFramework.framework in the void Embedded Frameworks section.
You will see now that a new Build Phase > Embedded Frameworks is created by XCode6 (not you, it is done automatically)
Now if you have 5, it should run without erros.
So to recap, to make it works you should see MyEmbeddedFramework.framework in
A) General > Embedded Binaries
B) Build Phase > Embedded Frameworks
It worked fine on iPhone5/iOS8 not on iPhone4S/iOS7 where I get:
dyld: Library not loaded: #rpath/ObjectiveLyricsTouch2.framework/ObjectiveLyricsTouch2
Referenced from: /var/mobile/Applications/739D9C44-3B91-4D4F-805B-83BE66C9CBCA/musiXmatch.app/musiXmatch
Reason: no suitable image found. Did find:
/private/var/mobile/Applications/739D9C44-3B91-4D4F-805B-83BE66C9CBCA/musiXmatch.app/Frameworks/ObjectiveLyricsTouch2.framework/ObjectiveLyricsTouch2: incompatible cpu-subtype: 0x0000000B in /private/var/mobile/Applications/739D9C44-3B91-4D4F-805B-83BE66C9CBCA/musiXmatch.app/Frameworks/ObjectiveLyricsTouch2.framework/ObjectiveLyricsTouch2
The problem was in the EmbeddedFramework. I had to
1) Set Architecture to default
2) Set Valid Architectures to: armv7, armv7s and armv64 (as Apple suggests armv64 is needed to have Embedded Frameworks working).
Then I was able to run the app with an embedded framework on
iPhone5S/iPhone5C iOS8
iPhone5S/iPhone5C iOS7
iPod 5th gen / iOS7
iPhone4S / iOS7
iPhone4 / iOS7
Anyways when submitting to iTunesConnect I get some errors for the Minimum Required Version:
The MinimumOSVersion of framework "..." is invalid. The minimum value is iOS 8.0;
Invalid Architecture: Apps that include and app extension and a framework must support arm64;
As of right now there is no way to use an embedded framework to share code between an app and widget and have it run on iOS 8 as well as iOS 7 & previous.
Here's some more reading on that http://atomicbird.com/blog/ios-app-extension-tips
Frameworks vs. iOS 7
If you are sharing code between an app and an extension, one nice way to do so is to create your own embedded framework to hold the code. On iOS 8 it'll load dynamically for both cases, so you're set.
If you still support iOS 7 (or earlier), it's not so clear cut. Embedded frameworks don't work there. The App Extension Programming Guide breezily notes that you can use dlopen to deal with this. With that approach you write code to load the framework dynamically at run time rather than rely on iOS loading it for you, if you've verified that the code is running on a version of iOS that supports doing so.
But how do you use that code on iOS 7? You don't. If your shared code is in an embedded framework, there's no way to execute it on iOS 7. It's just unavailable.
The dlopen approach might be handy if you only need the shared code on iOS 8. If you need it on iOS 7, you'll need to include it in the app target. And once you do that, you have no need of the framework. You could still use a framework for the app extension, but doing so is not actually useful. You'd be doing the work of creating the framework but not getting any benefit from it. Just include the shared code in both targets.
And from Apple's extension guide https://developer.apple.com/library/ios/documentation/General/Conceptual/ExtensibilityPG/ExtensibilityPG.pdf
If you link to an embedded framework from your containing app, you can still deploy it to versions of iOS older than 8.0, even though embedded frameworks are not available in those versions.
Fixed the error in xcode 6.1.1
using vim or vi open the project.pbxproj file.
At the end of the file (search for 8.1) , there would be Begin XCBuildConfiguration section
Look for your framework.
In out case even though the deployment target was set to 7.1 via Xcode -> general in target settings, the entry in the file had 8.1 for both debug & release
Here's the old file section looks like:
CURRENT_PROJECT_VERSION = 1;
DEFINES_MODULE = YES;
DYLIB_COMPATIBILITY_VERSION = 1;
DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "#rpath";
GCC_PREPROCESSOR_DEFINITIONS = (
"DEBUG=1",
"$(inherited)",
);
INFOPLIST_FILE = ENFramework/Info.plist;
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
IPHONEOS_DEPLOYMENT_TARGET = 8.1;
LD_RUNPATH_SEARCH_PATHS = "$(inherited) #executable_path/Frameworks #loader_path/Frameworks";
PRODUCT_NAME = "$(TARGET_NAME)";
SKIP_INSTALL = YES;
VERSIONING_SYSTEM = "apple-generic";
VERSION_INFO_PREFIX = "";
New section looks like :
CURRENT_PROJECT_VERSION = 1;
DEFINES_MODULE = YES;
DYLIB_COMPATIBILITY_VERSION = 1;
DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "#rpath";
GCC_PREPROCESSOR_DEFINITIONS = (
"DEBUG=1",
"$(inherited)",
);
INFOPLIST_FILE = ENFramework/Info.plist;
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
IPHONEOS_DEPLOYMENT_TARGET = 7.1;
LD_RUNPATH_SEARCH_PATHS = "$(inherited) #executable_path/Frameworks #loader_path/Frameworks";
PRODUCT_NAME = "$(TARGET_NAME)";
SKIP_INSTALL = YES;
VERSIONING_SYSTEM = "apple-generic";
VERSION_INFO_PREFIX = "";
Now we don't get error just a warning (but works on iOS 7.1 device) :
ld: warning: embedded dylibs/frameworks only run on iOS 8 or later
This looks like an xcode bug which incorrectly sets different ios targets and then causes error.
Going deeper on Apple Documentation I found out about dlopen command, which is used to make the linking of the libraries on some conditions, depending on system versions and libraries supported.
dlopen example of use:
Is the function 'dlopen()' private API?
So let's look at the solution provided by Apple Docs:
Deploying a Containing App to Older Versions of iOS
If you link to an embedded framework from your containing app, you can
still deploy it to versions of iOS older than 8.0, even though
embedded frameworks are not available in those versions.
The mechanism that lets you do this is the dlopen command, which you use to conditionally link and load a framework bundle. You employ this command as an alternative to the build-time linking you can specify in the Xcode General or Build Phases target editor. The main idea is to link embedded frameworks into your containing app only when running in iOS 8.0 or newer.
You must use Objective-C, not Swift, in your code statements that conditionally load a framework bundle. The rest of your app can be written in either language, and the embedded framework itself can likewise be written in either language.
After calling dlopen, access the embedded framework classes using the following type of statement:
MyLoadedClass *loadedClass = [[NSClassFromString (#"MyClass") alloc] init];
IMPORTANT
If your containing app target links to an embedded framework, it must
include the arm64 architecture or it will be rejected by the App
Store.
To set up an app extension Xcode project to take advantage of conditional linking
For each of your contained app extensions, set the deployment target
to be iOS 8.0 or later, as usual. Do this in the “Deployment info”
section of the General tab in the Xcode target editor.
For your containing app, set the deployment target to be the oldest
version of iOS that you want to support.
In your containing app, conditionalize calls to the dlopen command
within a runtime check for the iOS version by using the
systemVersion method. Call the dlopen command only if your
containing app is running in iOS 8.0 or later. Be sure to use
Objective-C, not Swift, when making this call.
Certain iOS APIs use embedded frameworks via the dlopen command. You must conditionalize your use of these APIs just as you do when calling dlopen directly. These APIs are from the CFBundleRef opaque type:
CFBundleGetFunctionPointerForName
CFBundleGetFunctionPointersforNames
And from the NSBundle class:
load
loadAndReturnError:
classNamed:
In a containing app you are deploying to versions of iOS older than
8.0, call these APIs only within a runtime check that ensures you are running in iOS 8.0 or newer, and call these APIs using Objective-C.
We tried running the latest code on the following configurations:
iOS 8+ — iPhone 5s
iOS 7.1.2 — iPhone 4
iOS 6.1.3 — iPad 4
The App is working fine on all the three devices but the warning is present in the Xcode while compiling .
"embedded dylibs/frameworks only run on iOS 8 or later”
Also I tried to Archive the App in order to submit it to the app store it went on fine.
Also, found out a link where in an apple developer stated this to be a bug
https://devforums.apple.com/message/999579#999579
Just for the record... I had this issue when changing a project from iOS8 to iOS7 deployment type.
The app used cocoapods and no custom embedded frameworks.
I had to change the main project two targets
Application
Application-Test
Changing Mach-O Type to static (from above answer).
Then on the cocoapods project. Under each sub pod project changing the Mach-O type to static, leaving the main pod Project Mach-O setting to blank.
I set the Mach-O Type to EXECUTABLE and it worked for me. Setting it to Static, Dynamic or Bundle created other errors when I ran it.
Target > "Your App" > Build Settings > Linking > Mach-O Type > Executable
I solve this problem following way :
Use same deployment target in both target "Embedded Framework" and "main App" target.
So, temporary, i said no to dynamic library, while many devices on iOS 7. How i solved my problem. I was need lib for transferring model between app and extension. So, i put my model to JSON string into shared container. And it works like a charm.
When you use dynamic library on ios you must code signed the library. In the Xcode 6, you should select the "Code Sign On Copy". And with the Xcode5, you should sign the library by your self with run script. like :
LOCATION="${BUILT_PRODUCTS_DIR}"/"${FRAMEWORKS_FOLDER_PATH}"
IDENTITY="iPhone Developer: xxxxx"
codesign --verbose --force --sign "$IDENTITY" "$LOCATION/BeeFramework.framework/BeeFramework"
Remove the use frameworks! from your PodFile if you want the Framework to work in iOS 7.0. i.e. run pod deintegrate command, modify your PodFile and then rerun the pod install command
Also after this, I had to add all the .h file's of the Framework in the Bridging file, that fixed the issue. Also remove the import TestLibrary from the swift files
I had a bug when updating to xcode 7.3. And I had solution for me.
- Change targets in pods project -> 7.0
- Hope it useful!
I was running into an issue where i needed to include some libraries as embedded frameworks otherwise i received the above error and when I did just that, I received errors when submitting to the app store.
My solution was to use Pods and make sure you uncomment the "use_frameworks!" line.
iOS Dynamic framework pre iOS v8
Dynamic framework aka Embedded framework is supported from iOS v8, but you can try to change Mach-O type[About] to Dynamic Library (which is set by default for supported target)
Dynamic linking error[About]
dyld: Library not loaded: #rpath/<some_path>
It is an dynamic linker error which links binary in load or runtime
[Vocabulary]

iOS Simulator Doesn't Install Application

Using Xcode 5.1 to debug an iOS 7.1 iPad application.
When I build and run my project in the iOS Simulator, the simulator opens and my app icon pops up for a second. Then it looks like the app stops installing and the simulator goes to the home screen. Xcode still thinks it's debugging and it doesn't show any errors in Xcode or the simulator. I can go to my app in the simulator and click it again, but it just crashes. I get the same behavior in iPad, iPad Retina, and iPad Retina (64 bit). Any subsequent tries to run the app in the simulator doesn't even attempt to pop the app icon up until I quit the iOS Simulator and try again. All the usual fixes haven't worked for me yet.
Fixes I've Tried:
1. iOS Simulator > Reset Content and Settings...
2. Window(in Xcode) > Organizer > Delete Derived Data & Delete Snapshots
3. Delete Contents in ~/Library/Application Support/iPhone Simulator
4. Uninstall Xcode and reinstall
5. Clean project and rebuild
6. Restart machine
I'm out of ideas. Is there something I've missed?
Thanks all!
Create another app with the exact same template and look at the app delegates and make sure they are the same.
Example: AppDelegate.h and AppDelegate.m
You might've accidentally deleted an area that helps load the App.
Alright I found the problem. I was playing with how we load our frameworks because we were having other issues before and I left a bad value in our Linking settings.
Here's how I fixed it:
Project > Build Settings > Linking > Mach-O Type set to "Executable"
It was set to "Bundles" before which causes Xcode to package the app in a way that caused ours to break.
Helpful Post: In Xcode project target build settings, What is Mach-O Type?

Library not loaded

I added Social.framework in my application in the same way i use to add the other frame works. I have downloaded xcode 4.5 and iOS 6 . but my application crashes with follwing error only on device. It works fine on simulator.
dyld: Library not loaded: /System/Library/Frameworks/Social.framework/Social
Referenced from: /var/mobile/Applications/FC88291D-2052-45D6-A7BB-65CE340F07BF/Uploading Image.app/Uploading Image
Reason: image not found
I was getting this exact error. My app currently has a deployment target of 5.1. I wanted to add Facebook sharing. I found this old post, Conditionally including a library for different iOS SDK versions?. All I did was set "Social.framework" to 'optional' and it did the trick, then my app would run on ios 5.1 and ios 6.0. Of course you need to do checks at runtime for what OS the device is running otherwise you could run into a crash if you try to access social.framework in ios 5.1 or earlier. Hope that helps!
In Xcode go to targets, Go to build phase and search for Social frame work you will find that under "Link Binary with Libraries" section. There select social frame work and see there is an option on right hand side required/optional in that just change required to optional. Now you are able to run on all ios devices without any crashes.

Interface builder is unable to open documents of type iPad XIB

I got a application from my teammate, and it is for both iphone and ipad devices (which it is developed under iPhone SDK 3.2).
I have iPhone SDK 3.1.3 installed in my mac book. When i tried to compile the application for iphone simulator i got the following error.
Interface builder is unable to open documents of type iPad XIB.
The above error is for interface builder created for ipad.
My Question is we can't compile the application on iPhone SDK 3.1.3 which the application developed under iPhone SDK 3.2?
Please shed some light of this?
thanks
mindus
Go to your project settings, and delete the line that says Interface Builder Plugin search path or something similar.
the exact line in project.pbxproj is: IBC_PLUGIN_SEARCH_PATHS = "${PROJECT_DIR}/**";
Short answer
Temporarily remove the iPad xib when working with the 3.1.3 SDK. Put them back when you go back to 3.2 and above.
Longer answer
This cropped up for me when compiling against 3.1.3. You can use conditional compiling to get code user newer features to build successfully (see Matt Gallagher's helpful post on conditional compiling).
There may be a smarter way to tell the compiler not to look at the iPad xibs. For testing on the 3.1.3 simulator I simply made a copy all my iPad xibs and then removed them from the xcode project. When going back to my current development set up, you have to put them back. It's a bit of pain, but not that fiddly.
To fix this:
Press Command-1 to go to the project tree
Select your project
The in the right panel select your project, and then click on "Build Settings"
In search field just below the "Build Settings" enter: "Overriding Plug-In"
Now, the only visible setting left should say "Overriding Plug-In and Framework Directory"
Double-click the value and remove all entries using "-" button
Click somewhere else so settings are saved
That should fix it