# Errors with renku migrate **URL:** \ **Category:** General\ **Created:** [13 March 2023 11:11 UTC](https://renku.discourse.group/t/errors-with-renku-migrate/765 "2023-03-13T11:11:46Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![lusamino](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/lusamino/32/227_2.png) [@lusamino](https://renku.discourse.group/u/lusamino)\ **Post date:** [13 March 2023 11:11 UTC](https://renku.discourse.group/t/errors-with-renku-migrate/765/1 "2023-03-13T11:11:46Z")
Hi to all, I have a repo that I created long time ago, so I am pretty sure that with quite an old `renku` version. I installed the last version of renku, leave the repo clean, and wanted to run a python script that works perfectly, as I have tested several times. However, when trying, `renku` prompts an error, urging me to do a migration, i.e. run `renku migrate`. Well, I then try, and I get this ```auto Fetching template from https://github.com/SwissDataScienceCenter/renku-project-template@0.3.5... Info: These parameters are not used by the template and were ignored: name Initializing workflows/my-workflow.yaml ... Ignoring identical file .dockerignore ... Ignoring identical file .renkulfsignore ... Ignoring identical file data/.gitkeep ... Ignoring identical file environment.yml ... Ignoring identical file notebooks/.gitkeep ... Ignoring unchanged template file .gitignore ... Ignoring unchanged template file requirements.txt ... Keeping README.md ... Overwriting .gitlab-ci.yml ... Overwriting .renku/renku.ini ... Overwriting Dockerfile ... Updating dockerfile... Updated dockerfile. Applying migration m_0010__metadata_fixes... Migrating old namespaces Fixing activity ids Error: Couldn't execute migration Traceback (most recent call last): File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/core/migration/migrate.py", line 173, in migrate_project module.migrate(migration_context) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/core/migration/m_0010__metadata_fixes.py", line 61, in migrate fix_dataset_date_modified() File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/inject/ __init__.py", line 342, in injection_wrapper return sync_func(*args, **kwargs) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/core/migration/m_0010__metadata_fixes.py", line 311, in fix_dataset_date_modified fix_creation_date(dataset) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/core/migration/m_0010__metadata_fixes.py", line 282, in fix_creation_date dataset.date_created = min([f.date_added for f in dataset.files]) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/infrastructure/persistent.py", line 62, in __setattr__ raise RuntimeError(f"Cannot modify immutable object {self}.{key}") RuntimeError: Cannot modify immutable object .date_created The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/ui/cli/exception_handler.py", line 92, in main return super().main(*args, **kwargs) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/click/core.py", line 1055, in main rv = self.invoke(ctx) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/click/core.py", line 1657, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/click/core.py", line 1404, in invoke return ctx.invoke(self.callback, **ctx.params) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/click/core.py", line 760, in invoke return __callback(*args, **kwargs) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/ui/cli/migrate.py", line 135, in migrate result = command.build().execute( File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/command/command_builder/command.py", line 266, in execute hook(self, context, result, *args, **kwargs) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/command/command_builder/command.py", line 202, in _post_hook raise result.error File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/command/command_builder/command.py", line 252, in execute output = self._operation(*args, **kwargs) # type: ignore File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/inject/ __init__.py", line 342, in injection_wrapper return sync_func(*args, **kwargs) File "/Users/luissalamanca/anaconda3/envs/demockg/lib/python3.9/site-packages/renku/core/migration/migrate.py", line 175, in migrate_project raise MigrationError("Couldn't execute migration") from e renku.core.errors.MigrationError: Couldn't execute migration ``` Obviously, no idea what is going on. Please, let me know how I could perform this, in order to start tracking the workflows. Thank you so much! Best regards Luis ---
**Author:** ![mohammad-sdsc](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/mohammad-sdsc/32/79_2.png) [@mohammad-sdsc](https://renku.discourse.group/u/mohammad-sdsc)\ **Post date:** [13 March 2023 12:46 UTC](https://renku.discourse.group/t/errors-with-renku-migrate/765/2 "2023-03-13T12:46:58Z")
Hi Luis, Thank you very much for reporting this! This is an issue on our side. We’ve made a fix. I’ll let you know once it’s merged. Cheers! Mohammad ---
**Author:** ![mohammad-sdsc](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/mohammad-sdsc/32/79_2.png) [@mohammad-sdsc](https://renku.discourse.group/u/mohammad-sdsc)\ **Post date:** [13 March 2023 14:52 UTC](https://renku.discourse.group/t/errors-with-renku-migrate/765/3 "2023-03-13T14:52:09Z")
Hello again @lusamino, We’ve made a Renku CLI `2.3.2` release that should solve this issue. Please use it and let us know if the problem still exists. If you are using Renkulab, launch a session, install the fixed version (`pip install --upgrade renku==2.3.2`), and migrate the project (`renku migrate`). ---
**Author:** ![lusamino](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/lusamino/32/227_2.png) [@lusamino](https://renku.discourse.group/u/lusamino)\ **Post date:** [13 March 2023 19:25 UTC](https://renku.discourse.group/t/errors-with-renku-migrate/765/4 "2023-03-13T19:25:13Z")
Wow, thank you so much for the mega fast answer! All worked seamlessly 😍 I just had to run `git restore`, as they previous faulty `renku migrate` made some changes. But after that, all worked perfectly, and the repo is migrated! Thank you so much!