[0.17.0] Linux crashes on start.

[linearj]

On start, Linux displays a message and then exits when you click OK:
"__base__/campaigns/beta/desription.json not found (No such file or directory)"
It is repeatable; autocloses every time with the same message.
Sorry for all of the edits; this is my first bug report and I am working through the process



0.000 2019-02-26 13:56:13; Factorio 0.17.0 (build 42971, linux64, alpha)
0.043 Operating system: Linux (Debian 9.5)
0.043 Program arguments: "/u/jackmc/usr/factorioExp/bin/x64/factorio"
0.043 Read data path: /home/jackmc/usr/factorioExp/data
0.043 Write data path: /home/jackmc/usr/factorioExp [34170/280584MB]
0.043 Binaries path: /home/jackmc/usr/factorioExp/bin
0.055 System info: [CPU: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 8 cores, RAM: 15624 MB]
0.055 Environment: DISPLAY=:7.0, WAYLAND_DISPLAY=<unset>
0.055 Display options: [FullScreen: 1] [VSync: 1] [UIScale: automatic (100.0%)] [MultiSampling: OFF] [Screen: 255] [Lang: en]
0.669 Available displays: 1
0.669 [0]: 0 - {[0,0], 1920x1080, SDL_PIXELFORMAT_RGB888, 60Hz}
0.698 Initialised OpenGL:[0] Mesa DRI Intel(R) Ivybridge Mobile ; driver: 3.3 (Core Profile) Mesa 13.0.6
0.698 [Extensions] s3tc:yes; KHR_debug:yes; ARB_clear_texture:yes, ARB_copy_image:yes
0.698 [Version] 3.3
2.848 Graphics settings preset: medium
2.848 Dedicated video memory size 0 MB
2.848 Graphics options: [Graphics quality: high] [Video memory usage: high] [Light scale: 25%] [DXT: low-quality]
2.848 [Max load threads: 32] [Max texture size: 0] [Tex.Stream.: 1] [Low quality rotation: 1]
2.918 Loading mod core 0.0.0 (data.lua)
2.991 Loading mod base 0.17.0 (data.lua)
3.185 Loading mod base 0.17.0 (data-updates.lua)
3.281 Checksum for core: 3857511955
3.281 Checksum of base: 738832761
3.776 Loading sounds...
3.804 Info PlayerData.cpp:67: Local player-data.json available, timestamp 1551207373
3.804 Info PlayerData.cpp:74: Cloud player-data.json unavailable
3.807 Error Util.cpp:75: File __base__/campaigns/beta/description.json not found (No such file or directory)
72.760 Goodbye
residue ~/usr/facto