is vuex-1.0.0.rc.2 incompatible with vuex-router-sync@2.0.2?

[rockymontana]

I can't install vuex-router-sync with vuex@1.0.0-rc.2 installed.

✗ npm list |grep vuex                                                                                                                                                       
└── vuex@1.0.0-rc.2

And:

✗ npm install --save-dev vuex-router-sync                                                                                                                                   /path/to/project
├── UNMET PEER DEPENDENCY vuex@1.0.0-rc.2
└── vuex-router-sync@2.0.2

npm WARN EPEERINVALID vuex-router-sync@2.0.2 requires a peer of vuex@>= 0.6.2 < 3 but none was installed.

Any ideas?

[player1537]

I believe the issue is caused by the use of prerelease tags. In particular, 1.0.0-rc.2.

This page says that if you've installed a dependency with a prerelease tag (1.0.0-rc.2) then it will only consider a version "greater than" that tag if it has the same base (1.0.0-rc). This means that 1.0.0-rc.3 >= 1.0.0-rc.2, but 1.0.1 >= 1.0.0-rc.2 will not hold, because 1.0.1 does not match 1.0.0-rc.

In other words, if Vuex gets a non-rc candidate released (e.g. 1.0.1) then installing that should make npm not complain about an invalid peer. Alternatively, if vuex-router-sync gets modified to also accept vuex@>=1.0.0-rc.2 (so: "vuex": ">=0.6.2 <3 || >=1.0.0-rc.2", I think) as a peer dependency, then it should work.

Also note that this is only a warning. So it installed everything correctly, it just believes that you've installed an incorrect version, but you can ignore it if vuex-router-sync is working correctly.

(Apologies if this information isn't correct. I was also just looking into this problem and saw your issue and decided to investigate it further)

[rockymontana]

Thanks for your answer.
You're right. The package gets installed, but if I understand you correctly it's an easy fix, right?

Does anyone know if there are any other compabillity issues between the two with vuex being in 1.0.0-rc.2?

[imr092]

npm install vuex@2.0.0-rc.5 vuex-router-sync@3.0.0 vue-router@2.0.0-rc.3 --save