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Hi all,
One customer asked me to do a small C# application and wants me to use VS2019... I currently have VS2017 in my computer and I'm using it a lot even integrated into my PLC developing needs.
Will 2019 work gracefully and won't make problems with 2017?
Any consideration before installing it?
Thank you all!
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It shouldn't be a problem: Install Visual Studio versions side-by-side - Visual Studio | Microsoft Docs[^] but it may affect file associations as .C#, /SLN, and .PRJ will be set to the last installed version. And it you open a solution / project in 2019 it may give problems when subsequently opened in 2017, though generally that's better these days than it was back in VS2008.
Certainly, I have no problems with 2019, 2013, and 2010 on this PC, though I did uninstall 2015 and 2017 before I added 2019.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Though I've not tried it, it's supposed to work.
Where I've heard problems can occur is not so much the installations, but updates to the earlier installed version. (Also, not applicable for you but in general the higher version needs to be installed before the lower - i.e. 2019 after 2017 is OK, 2015 after 2017 not.)
But consider installing a VM for the other version.
- Sure more initial farting around,
- but there will be no chance of inter-version "effects" and "fun."
- also snapshots, easy clean up and roll back.
- clones, (i.e. a pre-vs clone) - next time around skip the windows [and prefs] install work
after many otherwise intelligent sounding suggestions that achieved nothing the nice folks at Technet said the only solution was to low level format my hard disk then reinstall my signature. Sadly, this still didn't fix the issue!
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I have had the two versions installed alongside one another for a couple of years now with no problems. Initially I used both extensively although now I'm using 2019 almost exclusively.
I installed 2017 first and I support the suggestion of others that it's best to do it in that order.
Be careful about making significant changes to a project/solution in 2019 if you want to open it subsequently in 2017, but normal code editing doesn't cause problems.
Phil
The opinions expressed in this post are not necessarily those of the author, especially if you find them impolite, inaccurate or inflammatory.
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I installed 2017 first, thenn 2019. No problems. When I felt 2019 was stable enough, I removed 2017. No problems.
«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali
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I've had no problems running them side by side in the past
Real programmers use butterflies
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I actually have 2008, 2010, 2015, 2017 and 2019 on the same computer - all working side by side with no problem...
"The only place where Success comes before Work is in the dictionary." Vidal Sassoon, 1928 - 2012
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I've got 2010, 2017, and 2019 all on the same system with no problems whatsoever. I prefer 2010 when possible due to the slower load/build times with the newer versions.
"Go forth into the source" - Neal Morse
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I ran them both on windows 7 and just upgraded to 10 and have had no problems.
It's been 6 months since I joined the gym and there's been no progress. I'm going there tomorrow in person to find out what's really going on!
JaxCoder.com
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There are no problems having both versions side-by-side.
If you want to open a project/solution in a particular version, it may be better to open Visual Studio first, and then open the solution inside VS. Otherwise, it will probably use the last version installed.
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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I'm retired now but when I was working, we had multiple VS20xx versions running on the same computer. Crucial to the process is not having any of the Visual Studio symbols pre-defined in your environment. Each version of the IDE should be activated from a DOS window/command line that is found in the menu tree for each compiler. Clever users (this would be you) can look at the contents of each menu item and cook up the same thing yourself and make them desktop shortcuts with your own local/personal modifications.
I haven't used VS2017 or VS2019 but I would assume that the same trick will still work.
P.S. Make absolutely sure that all remnants of any and all compilers do not exist in your environment before starting this. Type 'msdev' (or whatever it is now) at the command line and make sure it gives an error. Likewise, start from a menu item selection and verify that it gives an error.
I'm retired. There's a nap for that...
- Harvey
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No problems here, I have 2008, 2015, 2017 and 2019 all installed and they co-exists happily with each other on W10 X64.
One thing I will say though, since VS15 all installs have shiped with the "Visual Studio Version Detector", if you set up your file associations to load with that (Particularly your SLN files) then it will examine the SLN file (Or if it's a .cs file, will look in same folder for SLN/CSPROJ) and determine if possible which Visual Studio Version to open it with.
Failing that, I have icons on my desktop for all the versions, and I just drop the SLN from explorer onto the version I want to use when loading.
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Possibly MucusMan: The Human Hagfish!
Either that or I have a cold*.
I suspect the later, but am secretly hoping for the first.
* Before you ask, no, I haven't been to China, no my posts aren't infectious, no I don't have Coronavirus: I haven't even eaten Chinese food this year.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Have you been to China?
Are your posts infectious?
Do you have the coronavirus?
Have you even eaten Chinese food this year?
Sorry, couldn't resist...
Hope you get better soon. ![Beer | [beer]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/beer.gif)
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Quote: Have you been to China?
No. I've been to the China cupboard several times though, if that counts.
Quote: Are your posts infectious?
No, but some may induce nausea.
Quote: Do you have the coronavirus?
No, but you'll just have to take my word for that. Would I lie to you?
Quote: Have you even eaten Chinese food this year?
No. Herself failed her cholesterol test this year, so we are on a diet. 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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We 
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The nature of "sharing is caring" according to Herself ...
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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I know, my wife got a new most significant number for her weight over Christmas.
So now I'm eating salad at work. 
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It's not as if my BMI is a problem: 24.5 is in the "Healthy Weight" area, though at the top end. But salads are as salads do - and worse I have to prepare them which means it's my fault if salad is boring.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Well, mine is, according to the BMI that is.
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The worst part is when you've converted your mass to muscle, and still weigh the same....
Convincing "The Boss" you've actually gotten healthy is still an uphill struggle...
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Now that I've spent enough time with the GPLEX v1.2 code to get over how messy and unfactored it is I'm starting to find it really interesting.
There are shortest string optimizations, a weird partitioning FA minimization scheme, and anchor support.
But I have to unravel the mysteries of the code to access them. It's a treasure hunt.
Or at least that's how i'm looking at it now. At least I'm not frustrated by it anymore.
Real programmers use butterflies
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Eating sambal like ketchup and chilli's like tomatoes, growing jalapeno's in the Dutch soil, I did not see any harm in Maggi Noodles "mit Jalapeno-chili" (from Rewe, Germany).
Today I learned that not all Jalapeno's are equal. That was more than 20 minutes ago, and drank half a liter of milk since then. Still feels like I am sweating liquid fire. Did you know you can sweat inside your ears?
So, of course, I'll have to get more of those noodles tomorrow 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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