How to update to 3.0

[kukjevov]

Hello i have been successfuly using flutter-pi with flutter 2.10, i have updated to 3.0 and i get following error during startup.

Error while initializing the Dart VM: Wrong full snapshot version, expected 'd56742caf7b3b3f4bd2df93a9bbb5503' found '1441d6b13b8623fa7fbf61433abebd31'

I had pulled latest engine binaries on development machine and called ./install.sh
I had called flutter upgrade on development machine.
I had pulled latest flutter-pi changes on raspberry os and removed build directory in flutter-pi and called following commands.

mkdir build && cd build
cmake ..
make -jnproc
sudo make install

What am i missing?

Thank you

[pieter-scholtz]

Perhaps try the following :

1. Make sure that your flutter SDK is checked out at 3.0.0 using flutter doctor -v
2. Inside the flutter SDK delete the cache folder located at: /flutter/bin/cache

[zoechi]

I run into the same issue.
In my case it was because I didn't use the full path to the dart.exe and so the one from my Dart SDK install was executed, instead of C:\flutter\bin\cache\dart-sdk\bin\dart.exe ...

[pieter-scholtz]

I run into the same issue. In my case it was because I didn't use the full path to the dart.exe and so the one from my Dart SDK install was executed, instead of C:\flutter\bin\cache\dart-sdk\bin\dart.exe ...

I just want to clarify , this is with regards to AOT modes (profile & release) , and not a issue when running in debug mode ?

[zoechi]

@pieter-scholtz yes, in my case it was only with the additional steps for the release build.

[pieter-scholtz]

@zoechi Thanks , makes sense , when I first got the error it haunted me for a few weeks : D

[kukjevov]

Well i found out too, that problem is dart, but is the problem on dev machine, or on rpi production machine?

[zoechi]

It's on the dev machine when I try to create a release build, before rsyncing it to RPi

[pieter-scholtz]

Yes exactly , the reason I suggested deleting /flutter/bin/cache (On the dev machine) , is because sometimes when switching flutter SDK versions using just git , the dart stuff in the cache does not get updated, if you delete it , the correct version will be downloaded automatically (I think running flutter upgrade is better in this regard)

[kukjevov]

Well i have deleted /flutter/bin/cache and even removed all ignored files in flutter repo. I have upgraded flutter using flutter upgrade and problem is still there. When i was looking on stackoverflow for something like this, one guy had similar problem, that only full reinstall of flutter helped. That is one thing that i havent tried yet. So i hope full reinstall will help :).

Anyway thx for replies :).

[pieter-scholtz]

Before you do that , I would recommend you check that you have the right engine libraries on the pi , perhaps delete the old ones from /usr/lib on the pi , and then run the install for that.

[ardera]

I had pulled latest engine binaries on development machine and called ./install.sh

The engine binaries need to be installed on the pi, you don't need to install anything on your development machine except the flutter SDK

[kukjevov]

@ardera @pieter-scholtz it looks like that problem was engine-binaries on rpi, now it is working thx :)