# Reading Log Files

**URL:** <https://devforum.zoom.us/t/reading-log-files/52666>\
**Category:** macOS\
**Created:** [June 17, 2021, 3:50pm UTC](https://devforum.zoom.us/t/reading-log-files/52666 "2021-06-17T15:50:57Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![jcebasek](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@jcebasek](https://devforum.zoom.us/u/jcebasek)\
**Post date:** [June 17, 2021, 3:50pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/1 "2021-06-17T15:50:58Z")

</div>

**Description**  
Since I can’t read the log files from the Video SDK, I’ve attached the VideoSDK log file. If some one has a moment, can they tell me the error of my ways? It appears that:

```
ZMVideoSDKSession* sessionInfo = [self.zoomVideoSDK joinSession:sessionContext];

```

is returning nil (and no reason why!)

**Which macOS Video SDK version?**  
zoom-video-sdk-macOS-1.1.0

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Go to ‘…’
2. Click on ‘…’
3. Scroll down to ‘…’
4. See error

**Device (please complete the following information):**  
MacBook Pro 2017, Big Sur 11.3.1

Since I can’t attach the log file, I’ve embedded the text in line:

ReceiverVersion:CSV20  
CipheredPassword:Fdjr43qU+iURUvdfEMpkdS/xvpv1HXk9OHvC4xVx43rXsGDszrJRAJNEsncvtOCy  
CipherSignature:MIGHAkIAjiIPAjhbNtOThhUaFmRwVHKtX3D6xuEWDYg08szSZHClLmZ5HgOm5g/NzI11KBa16xeKA9gRZhI6cEbCpHQVT7kCQUK41FMpG5C6xGx0U6RaXrZ58VlYea+Mk1wBI7EQGVgloFqk2Dn3I9OPXfY7QdqmUc5kOcyb8Ao2y6peENDntA5E  
LoggerInfo:BAA0pGUFfmUpHPQ6SRd7ug5kNTfqm8rs+sWWgiklrLUpAzWzR+Yz6/I5Zau2w95NoxeSZd5UnJFufYcRBM9Dt2NtGQBoVSf4DX2vpHoaSHDgWM+nJHwa1Dnn0uze4gVCun/+VqNpGtUgTD8K6R8eo7QpPJJ0MFhF3/xJzvKi1fd6ateKjQ==  
FileInfo:MUtk+Rh2PK0WCAHenwf8gw==  
End  
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> /’%”†∞©»L∆´flyçÄ≥¯"\>˚1aâ»ìH\>ö`YäVNQ-9f«Ü‚≠èˇõ˛s”CÅï˜xEÿáKpø©≥%ˆ	=Ö>ä˚Ê√Efi›]∏h:øÂÔfVô‹¬©GAÒZje_Ù›≠ ²aÉ£¿»ñ‹∞"yé–ôäJ=ãjõSÂß&∂â,.±Ã,r@Ø –˝?ˆ˚=ÓR˝ni9¸aî†&Y´†ß¢›EDBm¸Öµ¶ªE∂<«ô›¶#ã1∞XMmB…˙˝ìaøá7AàN$ÜHy∑õ≥Û§¥FŸzΩi(p짔*ÚªaßÜIå®M)¸Êæò@bàoøôñbœeóz{œÔeD=é◊˘„ƒ`F•KM‹`dâà ,Ω»Ó+Ó¶>#	wÿ‚;;:òŸ}¨âÁø‚Û˜TÜåñ‰ˇ‰<H¶ifl{ù™e©ıqwpè»j_ZXí*∆µÕ»¿◊pb √¢È±,É»z˛∞7ïÜdÅw=ƒ-Q«≈VeSBîr%b¶hiíÍs¿ú!"ó)*∞¶PF<xRPD◊Ÿ«á$>fi®Åx9øÿ—+YŸ`¬Õœ„å≥˘f¸mˇØà +ËL.⁄Q5Bc"Ö…ˆ#e§# Ww˜™ƒ˙4“ú÷Œˆ·,ï˝∏òç1t«6›∫àé°Îæ¸◊  
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> ˚éÀ„‚£å‡hëf¡;`¨6ï}Ôó¶]/˙>zRïã◊Ω1cãJueŸLZ˜ Ù Ì¿‰KÓU#⁄3Ê≤{£ËóFe∂§Ò¡nŒV˚tXÅ;≤\ܬúW⁄Qx´gR…ïQõJ‘ ‰0”¶Ô=∑˙)4˘S…f∆è$ÆUÿï˚Ãfi§WèTV∫^∫·Ø.ºeV?”±<˘/=]ñ3Ùˆ¢Å’∫flß ÙuW√J2{„K›¯ÖîpŸˇ≥?EØ∑2ä´≤.T&«(J¸°r¥¥flk∂‡Öfifƒ[^-¡uM¢BÁRoªˆvê2* ˛*Õu¨rfi<Á—ê˘{°Ÿ·ñÍ혘µ¸vq»¡Lj£Ê:5ˇ\ΑìTT„•3VãÜ0Úü‚ñæÄ~ˡü∑Ó˙˘—u∂ÔÕÊ[ár6‰√ƒ|Çflfl’ ®≥04P∫¸~”8óÍ÷’&uflV≈çÃ2Îê∂;ae4]êåiÚcı∆∏|ç¥ûG†à~¯lBÅEX≤vc“ŒÖÔg÷í (π◊=—,TıG¬=∑ÊS#‚*YVäȘºîÓfl+Í ÃÊ!–-svï ≥ùs1$√ÖuDïÙfjæÖÍÁºñö†Z~\»R§_êO0R´˘ü9ä,o∆[Îõ	ty+]Ω@'"”µaàU»ÌZ]t¸©~¸6;^ŸëÏù¶%ıFç茷–kJ£≠#0F):áõ≠ ⁄πÌS€a¥6}¯Ç»≤—v∞j!ZúúK3íà‡*Í–≤\√¡2˙Ç∏9ın	#≥(≈Üù∫{[fi‚,_˜◊ÄD2“o≤≈—®^"m‡Ds∞çÕ˝QIDt⁄x]ÚaQVÇflØ+9åÑ¥›bM-n≠øyzm√B.èh§Èæì£ΩYãKä¥êLz9/¸ºtçP◊»-^·+¸¬‹ˇàÕ∑XLä∫B∞HGƪ˘˚Ÿk…°°öÂóÛ*c’ø’â·±ê˙ÈgKº,¢Ñπ	eG'≥O≤9äpO∏ΩCµúΩ€ù’ıÇùÁ—à‚à:íߘ-ÑïÌ!ì∂˘IˇpWd —ây ≠‹FµπE•9ë˙.*5Á;§Ê–vvS9Õ$÷‚Ω‰z˚¯6éög ~hÿóíÿ]fi;1˙+*aã˙8ı˙„[¿≈~¬¿ÿUè€Òxe©0˛Ø¯^Cœ §2ÔG©_͈~Îü?=Êæ¶+©∆]äƒ[ªπI{LÜ2aêÌ“Í∂*ûfig«4=,fiËuÏ-êÏç·Ê”}шÙP}‘‚]›LÿqµÒÀ·FZ‰N…B°ç[q≈]Ï\…éöƒj)®⁄J‘[K§üN=:Ôc®„˛›e¨UflGÚr°´·^˚‘gÔ‚Ï≠ó·Ä≥¢ÿDT"ß“˚√Z7Kã ó ì≤Uây=;(r–%≈áÛ}à¶∆gÎ◊[∂é`öôSR‘ÈÒâk2äÔ!œ{∞‰∑{¨≤ß_5;60/bÎ~3Ä[óñ\<o ›íëıó≤ç.T…|È¿œ‚¥_ªY::öhj∂Ä))≥Nln˜ΩLÔPgÖ∆r’\<≈∏(WøW›°8íb¬Lä´#‘»õOn—%∂Ûc‘:ÛEº¬©§Æ¨S˘ãLéwmˆ2¶}Äàñ}[?È…˙Äq~„Ó—M«ì:– H’‚Tµ#—êÓfl%Ç®;¨Gl≈lêx7€\>&»˜-∞Z¡º◊√B™ˆ◊Ê%e) •ã9úØíEȶ¬€i6Pj8z¶åJù©®Í~étü5±áÃı#4∞•Cm‰neú÷}@D®E¸\<∏1∑í◊ÌÔ•±pì™ÅZH}sù—Õ§Œé¯µΩˆcMn√F±\>πú•bÒ÷s≤ñ:éÜ`˛.ÛrÛr£	5¡ ≠êb^DReceiverVersion:CSV20 CipheredPassword:Fdjr43qU+iURUvdfEMpkdS/xvpv1HXk9OHvC4xVx43rXsGDszrJRAJNEsncvtOCy CipherSignature:MIGHAkIAjiIPAjhbNtOThhUaFmRwVHKtX3D6xuEWDYg08szSZHClLmZ5HgOm5g/NzI11KBa16xeKA9gRZhI6cEbCpHQVT7kCQUK41FMpG5C6xGx0U6RaXrZ58VlYea+Mk1wBI7EQGVgloFqk2Dn3I9OPXfY7QdqmUc5kOcyb8Ao2y6peENDntA5E LoggerInfo:BAA0pGUFfmUpHPQ6SRd7ug5kNTfqm8rs+sWWgiklrLUpAzWzR+Yz6/I5Zau2w95NoxeSZd5UnJFufYcRBM9Dt2NtGQBoVSf4DX2vpHoaSHDgWM+nJHwa1Dnn0uze4gVCun/+VqNpGtUgTD8K6R8eo7QpPJJ0MFhF3/xJzvKi1fd6ateKjQ== FileInfo:h+9iY2C89SfjEVUHNXRHuw== End (êé≤e4“∫§_‚D]›a∫w§à”nò¬/A#F√ìµ .ñΩÑ≈:I•vSû[ÄÉhZV∞µ@Ù€†≠j°Ü?M‘jâ8A¥Ó·Ry±îìà2'¨ümØ˛ä(d?·Ü”5dvÂ%=Åüf¥.ÉN¡˘“ìÓµ“©ß∂∏4mO §∂WJÈ“ãUìÙ∆÷ù M6Ã%X#Ë‘EY◊hpzäå©∑c0m‹ÚÔ	÷Æ`‘ËWoÛü`Å"™±1Í ô—⁄+@ê M›OP}»Ñàô_Qh˝fëB¶òô3a-8Øu∑Eıí4Y÷qnÔwh∑ññK«Ôf|∞múßZç6Ó.π›hâoÖXn¨»Óúïfûª≈:c*wb¿R%fi⁄êÃ5¶jçÔó∆ö+;äËËaip˝9Ÿ˙Îé∂ù•éò-e¿æ9à8æfÃÓU&=ıŒÆ∆~pÃπ‚é˚jG)?/ΩˇtJk·ôH=q+e´7ï∑±x2$¢Ùç∂ã®I0˝Xp@±Ä~b∆\AN ∂æxRÔãÀ8Ù@î3ÆIRQ	›‘}Ü¢MY?Q¥xVm˘íIQ®v≤wen[” m=ßTü|E‰êíÎGe+.\ππo√F-Çø>ȪJQˇøÏΩ‡€"v78FbFot}UŸüøÑ„Øç∏µ-€úe∆ü9ãÜ3ùı«Jøgƒ+nã∫ê‘DflnhK;-ʺû æ	KÖ•ë≤;F˜.X룑<ñ‘ùÔ‘JÏ1‚ï˙fiå2§Ä≠y-kÅ˘áI¶yŒ<$WÛNO]eõ©e—mccXu)IicSËÆ`€4t~#‘Ü7°Æ){EêfÀ

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [June 17, 2021, 4:08pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/2 "2021-06-17T16:08:59Z")

</div>

Hi @jcebasek, thanks for the post.

Are you initializing the SDK and ensuring that you have successfully joined the session via the `onSessionJoin` callback before executing the code in your post?

Thanks!

---

<div class="post-metadata">

**Author:** ![jcebasek](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@jcebasek](https://devforum.zoom.us/u/jcebasek)\
**Post date:** [June 17, 2021, 4:12pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/3 "2021-06-17T16:12:50Z")

</div>

Hi Jon:

Thanks for the reply. I’m just running the demo app in the sdk folder to get my feet wet with the available functionality. I was trying to create a session. Maybe I’m missing some prerequisites? Can you provide?

Thanks

John

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [June 21, 2021, 7:41pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/4 "2021-06-21T19:41:31Z")

</div>

Hi @jcebasek,

Thanks for the additional context. I have not been able to reproduce this behavior on the sample application. Can you please provide steps to reproduce so we can figure out what is being done differently?

Thanks!

---

<div class="post-metadata">

**Author:** ![jcebasek](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@jcebasek](https://devforum.zoom.us/u/jcebasek)\
**Post date:** [June 21, 2021, 8:00pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/5 "2021-06-21T20:00:31Z")

</div>

Hi Jon:

May I ask you questions, might be easier. What was your payload for the JWT token? I think I used the one in the documentation. It’s got a token expiry time in it.

So I’ve pasted my token into the token field when you click on the gear icon in the upper left corner of the screen. Then I want to create a session.

Session name: I used (because I don’t know what else to use) JohnSession  
Your Name: Johnny (only I can call me Johnny BTW)  
Password, sometimes empty, sometimes abc123

sessionContext.token = self.settingViewController.token;  
sessionContext.videoOption = videoOption;  
sessionContext.audioOption = audioOption;  
sessionContext.preProcessor = nil;  
sessionContext.externalVideoSource = nil;

ZMVideoSDKSession\* sessionInfo = [self.zoomVideoSDK joinSession:sessionContext];  
if(!sessionInfo)  
{

Session info is always nil.

Is it that the JWT token is dodgy? If so what’s the payload?

Any info would be appreciated.

Thanks

John

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [June 21, 2021, 10:05pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/6 "2021-06-21T22:05:11Z")

</div>

Hi @jcebasek,

You mention the session name’s value in your post, but it does not look like the `sessionName` field is being set on your `sessionContext` instance. This field must be set to the same value on both your JWT (via `tpc` value) and the params (via `sessionName` field) used to start the session. Can you confirm that this is being done?

Thanks!

---

<div class="post-metadata">

**Author:** ![jcebasek](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@jcebasek](https://devforum.zoom.us/u/jcebasek)\
**Post date:** [June 22, 2021, 12:21pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/7 "2021-06-22T12:21:02Z")

</div>

Morning Jon (at least it’s morning here…)

Thanks for the info, it was a dodgy JWT token. Got the permission alerts and the camera on my MacBook Pro turned on. I’ll forward this info on to the Windows dude.

Thanks much for your patience.

John

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [June 22, 2021, 5:14pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/8 "2021-06-22T17:14:25Z")

</div>

That’s great to hear, glad I was able to help!

Please feel free to reach out in a new thread with any additional questions. 🙂

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [August 19, 2021, 12:13pm UTC](https://devforum.zoom.us/t/reading-log-files/52666/10 "2021-08-19T12:13:42Z")

</div>

Closed on August 19, 2021, 12:13pm UTC

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