version `GLIBC_2.3' not found

[mo3head]

Issue Title

Upon building my .net core 3 program I started getting this error when trying to launch my application:

./bcscon: /lib64/ld-linux-x86-64.so.2: version `GLIBC_2.3' not found (required by ./bcscon)
./bcscon: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.4' not found (required by ./bcscon)
./bcscon: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.3' not found (required by ./bcscon)

General

I have not done any big changes. I did not update my visual studio. I could run my .net core 3 applications without any problems for just over a month but after my last compilation I started getting this error. Although I haven't added any binaries or dependencies. I am unsure where this error is coming from.
My system is Ubuntu 18.04

[mairaw]

Tagging @dagood @leecow

[dagood]

It looks like someone hit a very similar error at https://stackoverflow.com/q/62582804 under similar circumstances. (No answer there.)

I am compiling a .Net Core 3.1 self contained executable with the linux-x64 RID.
When I try to run the executable on my Debian Linux c00kb0xA 4.19.0-9-amd64 dotnet/core#1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) x86_64 GNU/Linux I get the folling errors.

./Business Connectivity Service: /lib64/ld-linux-x86-64.so.2: version 'GLIBC_2.3' not found (required by ./Business Connectivity Service)
./Business Connectivity Service: /lib/x86_64-linux-gnu/libc.so.6: version 'GLIBC_2.4' not found (required by ./Business Connectivity Service)
./Business Connectivity Service: /lib/x86_64-linux-gnu/libc.so.6: version 'GLIBC_2.3' not found (required by ./Business Connectivity Service)

I think this issue belongs in dotnet/runtime, since it probably has to do with the .NET host or runtime and they'll be more familiar than me with this kind of issue. (glibc dynamic library binding problem?)

---

@mo3head The scenario isn't quite clear for this particular issue though, so to verify: you mention Visual Studio, but also Ubuntu 18.04--are you publishing an app from Visual Studio, copying it to Ubuntu 18.04, then running it?

The output of dotnet --info may be useful (on both systems, if applicable), and ideally a sample project that reproduces the issue.

Maybe you could try running ldd -v bcscon on the old copy of bcscon and the new copy of bcscon, then compare the output to spot any differences of the GLIBC dependencies. (Just an idea based on https://unix.stackexchange.com/q/45277.) Comparing the text files like the .json files in the app directory may also result in some useful info about potential differences.

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[dagood]

@jeffschwMSFT @vitek-karas @swaroop-sridhar, does this error seem like something the apphost would emit in some specific situation, and would this issue make sense to put in area-Host for tracking?

Tagging subscribers to this area: @vitek-karas, @swaroop-sridhar, @agocke
Notify danmosemsft if you want to be subscribed.

[wfurt]

Can you run this @mo3head ? And possibly try new simple hello world app?

furt@ubu18:~$ nm -D  /lib/x86_64-linux-gnu/libc.so.6 | grep GLIBC
0000000000000000 A GLIBC_2.10
0000000000000000 A GLIBC_2.11
0000000000000000 A GLIBC_2.12
0000000000000000 A GLIBC_2.13
0000000000000000 A GLIBC_2.14
0000000000000000 A GLIBC_2.15
0000000000000000 A GLIBC_2.16
0000000000000000 A GLIBC_2.17
0000000000000000 A GLIBC_2.18
0000000000000000 A GLIBC_2.22
0000000000000000 A GLIBC_2.23
0000000000000000 A GLIBC_2.24
0000000000000000 A GLIBC_2.25
0000000000000000 A GLIBC_2.2.5
0000000000000000 A GLIBC_2.26
0000000000000000 A GLIBC_2.2.6
0000000000000000 A GLIBC_2.27
0000000000000000 A GLIBC_2.3
0000000000000000 A GLIBC_2.3.2
0000000000000000 A GLIBC_2.3.3
0000000000000000 A GLIBC_2.3.4
0000000000000000 A GLIBC_2.4
0000000000000000 A GLIBC_2.5
0000000000000000 A GLIBC_2.6
0000000000000000 A GLIBC_2.7
0000000000000000 A GLIBC_2.8
0000000000000000 A GLIBC_2.9
0000000000000000 A GLIBC_PRIVATE

and possibly LD_DEBUG=libs ./bcscon

[elinor-fung]

@mo3head were you able to try the suggestions from @dagood and @wfurt?

This issue has been marked needs-author-action and may be missing some important information.