prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Error building docs with new env
  
  ```
  Running Sphinx v1.8.1
  loading pickled environment... failed: build environment version not current
  
  Theme error:
  sphinx_rtd_theme is no longer a hard dependency since version 1.4.0. Please install it manually.(pip install sphinx_rtd_theme)
  ```
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `setup.py`
  Content:
  ```
  1 from setuptools import setup, find_packages
  2 
  3 with open('parsl/version.py') as f:
  4     exec(f.read())
  5 
  6 with open('requirements.txt') as f:
  7     install_requires = f.readlines()
  8 
  9 setup(
  10     name='parsl',
  11     version=VERSION,
  12     description='Simple data dependent workflows in Python',
  13     long_description='Simple parallel workflows system for Python',
  14     url='https://github.com/Parsl/parsl',
  15     author='The Parsl Team',
  16     author_email='parsl@googlegroups.com',
  17     license='Apache 2.0',
  18     download_url='https://github.com/Parsl/parsl/archive/{}.tar.gz'.format(VERSION),
  19     package_data={'': ['LICENSE']},
  20     packages=find_packages(),
  21     install_requires=install_requires,
  22     scripts = ['parsl/executors/high_throughput/process_worker_pool.py',
  23                'parsl/executors/extreme_scale/mpi_worker_pool.py'],
  24     extras_require = {
  25         'db_logging' : ['CMRESHandler', 'psutil', 'sqlalchemy'],
  26         'aws' : ['boto3'],
  27         'jetstream' : ['python-novaclient'],
  28         'extreme_scale' : ['mpi4py'],
  29         'docs' : ['nbsphinx'],
  30         'google_cloud' : ['google-auth', 'google-api-python-client']
  31         },
  32     classifiers = [
  33         # Maturity
  34         'Development Status :: 3 - Alpha',
  35         # Intended audience
  36         'Intended Audience :: Developers',
  37         # Licence, must match with licence above
  38         'License :: OSI Approved :: Apache Software License',
  39         # Python versions supported
  40         'Programming Language :: Python :: 3.5',
  41         'Programming Language :: Python :: 3.6',
  42     ],
  43     keywords=['Workflows', 'Scientific computing'],
  44 )
  45
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/setup.py b/setup.py
  --- a/setup.py
  +++ b/setup.py
  @@ -26,7 +26,7 @@
           'aws' : ['boto3'],
           'jetstream' : ['python-novaclient'],
           'extreme_scale' : ['mpi4py'],
  -        'docs' : ['nbsphinx'],
  +        'docs' : ['nbsphinx', 'sphinx_rtd_theme'],
           'google_cloud' : ['google-auth', 'google-api-python-client']
           },
       classifiers = [
  
verification_info: {"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -26,7 +26,7 @@\n         'aws' : ['boto3'],\n         'jetstream' : ['python-novaclient'],\n         'extreme_scale' : ['mpi4py'],\n-        'docs' : ['nbsphinx'],\n+        'docs' : ['nbsphinx', 'sphinx_rtd_theme'],\n         'google_cloud' : ['google-auth', 'google-api-python-client']\n         },\n     classifiers = [\n", "issue": "Error building docs with new env\n\r\n```\r\nRunning Sphinx v1.8.1\r\nloading pickled environment... failed: build environment version not current\r\n\r\nTheme error:\r\nsphinx_rtd_theme is no longer a hard dependency since version 1.4.0. Please install it manually.(pip install sphinx_rtd_theme)\r\n```\n", "before_files": [{"content": "from setuptools import setup, find_packages\n\nwith open('parsl/version.py') as f:\n    exec(f.read())\n\nwith open('requirements.txt') as f:\n    install_requires = f.readlines()\n\nsetup(\n    name='parsl',\n    version=VERSION,\n    description='Simple data dependent workflows in Python',\n    long_description='Simple parallel workflows system for Python',\n    url='https://github.com/Parsl/parsl',\n    author='The Parsl Team',\n    author_email='parsl@googlegroups.com',\n    license='Apache 2.0',\n    download_url='https://github.com/Parsl/parsl/archive/{}.tar.gz'.format(VERSION),\n    package_data={'': ['LICENSE']},\n    packages=find_packages(),\n    install_requires=install_requires,\n    scripts = ['parsl/executors/high_throughput/process_worker_pool.py',\n               'parsl/executors/extreme_scale/mpi_worker_pool.py'],\n    extras_require = {\n        'db_logging' : ['CMRESHandler', 'psutil', 'sqlalchemy'],\n        'aws' : ['boto3'],\n        'jetstream' : ['python-novaclient'],\n        'extreme_scale' : ['mpi4py'],\n        'docs' : ['nbsphinx'],\n        'google_cloud' : ['google-auth', 'google-api-python-client']\n        },\n    classifiers = [\n        # Maturity\n        'Development Status :: 3 - Alpha',\n        # Intended audience\n        'Intended Audience :: Developers',\n        # Licence, must match with licence above\n        'License :: OSI Approved :: Apache Software License',\n        # Python versions supported\n        'Programming Language :: Python :: 3.5',\n        'Programming Language :: Python :: 3.6',\n    ],\n    keywords=['Workflows', 'Scientific computing'],\n)\n", "path": "setup.py"}], "after_files": [{"content": "from setuptools import setup, find_packages\n\nwith open('parsl/version.py') as f:\n    exec(f.read())\n\nwith open('requirements.txt') as f:\n    install_requires = f.readlines()\n\nsetup(\n    name='parsl',\n    version=VERSION,\n    description='Simple data dependent workflows in Python',\n    long_description='Simple parallel workflows system for Python',\n    url='https://github.com/Parsl/parsl',\n    author='The Parsl Team',\n    author_email='parsl@googlegroups.com',\n    license='Apache 2.0',\n    download_url='https://github.com/Parsl/parsl/archive/{}.tar.gz'.format(VERSION),\n    package_data={'': ['LICENSE']},\n    packages=find_packages(),\n    install_requires=install_requires,\n    scripts = ['parsl/executors/high_throughput/process_worker_pool.py',\n               'parsl/executors/extreme_scale/mpi_worker_pool.py'],\n    extras_require = {\n        'db_logging' : ['CMRESHandler', 'psutil', 'sqlalchemy'],\n        'aws' : ['boto3'],\n        'jetstream' : ['python-novaclient'],\n        'extreme_scale' : ['mpi4py'],\n        'docs' : ['nbsphinx', 'sphinx_rtd_theme'],\n        'google_cloud' : ['google-auth', 'google-api-python-client']\n        },\n    classifiers = [\n        # Maturity\n        'Development Status :: 3 - Alpha',\n        # Intended audience\n        'Intended Audience :: Developers',\n        # Licence, must match with licence above\n        'License :: OSI Approved :: Apache Software License',\n        # Python versions supported\n        'Programming Language :: Python :: 3.5',\n        'Programming Language :: Python :: 3.6',\n    ],\n    keywords=['Workflows', 'Scientific computing'],\n)\n", "path": "setup.py"}]}